Intel Skylake / Kaby Lake

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ThatBuzzkiller

Golden Member
Nov 14, 2014
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Not like AMD is gonna sneak out a killer overclocker over night, so why should they bother. They gave a 10-15% increase, some will like this. Some don't, just like some think AMD is a great CPU value for there needs.

Who cares about AMD ...

What I care about is performance! 10-15% increase ? More like 7% and that's at BEST case scenario. What I care most is WORST case scenario and Intel more than failed to deliver that on the gaming segment ...

I don't think AMD CPUs are great value. I think their horrible value much like the gains (if you can even call it that) of Skylake microarchitecture ...

If Intel don't want my money then so be it but if AMD delivers (alas I have no faith in them) then so be it ...
 

Carfax83

Diamond Member
Nov 1, 2010
6,841
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You don't really need a 5930K. 5820K can run 16x/8x and 4x. 4x is more than sufficient for a PhysX card unless NV has some limitation that it requires 8x for PhysX? The price difference between 5930K and 5820K is huge. You could step-up to the Swiftech H240-X over the Noctua NH-D15 and still have $100 left over from not getting the 5930K.

I'd still want the full 40 lanes though, as I don't like the idea of a crippled CPU.. Plus I don't trust watercooling..

Anyway, I think you've succeeded in giving me pause. Honestly, I'm very happy with my current PC. It performs well, and hasn't given me any stability issues. And with DX12, I don't foresee any CPU related performance issues in games..

The only reason why I'm even contemplating this is because the X79 platform itself is just so old. Intel themselves don't even support it anymore with driver updates.

Plus the longer I wait to upgrade, the less money I will get for the parts. If I were to sell right now, I could get $850 bucks for all of this stuff easily, including a spare 3930K CPU. So all in all, my upgrade would only cost roughly $200 bucks.

But then all the hassle of finding buyers and negotiating just takes all of the fun out of upgrading..

In all honesty though, your GPU + monitor upgrades would net you far greater benefits/satisfaction than moving from your CPU platform to HW-E. Lots of great G-Sync monitor choices that are going to provide a big impact on your overall 2D/3D experience moving from a 27" Catleap.

I will get a G-sync monitor, but not until the 16nm GPUs from NVidia become available. I want 4K resolution, and 4K is not fully viable right now unless you use multiple GPUs. And while I have SLI, GTX 980 SLI still doesn't offer good enough performance at 4K for me to do a monitor upgrade just yet.

When Pascal comes out, the performance will be there to run 4K at ultra quality settings on a single GPU..
 
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Sweepr

Diamond Member
May 12, 2006
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Since productivity benchmarks like encoding/decoding/rendering/photo editing are giving the highest gains for Skylake over Haswell, it's only fair then if someone actually uses their computer for those tasks that we compare 5820K to the 6700K and not just 4770K/4790K to 6700K. In that scenario, i7 6700K @ 4.7Ghz gets destroyed by a 4.5Ghz i7 5820K.

Did someone say otherwise? I'm sorry but you must have mistaken me with someone else, I own a Core i7 5820K.

Still from your benchs the i7 6700K gets killed in GTA V in gaming against a stock 3.0Ghz 5960X. Add Crysis 3, The Witcher 3, Ryse Son of Rome, 5820K OC > i7 6700K OC. Even DDR4-4000 won't save 6700K in gaming or productivity situations where 6-cores are beneficial.

An overclocked Core i7 6700K will still perform better in most games out there.

If someone is spending $350 USD on a CPU + $150-200 on a motherboard, at that point, X99 is not a far stretch. Certainly once Broadwell-E launches or Skylake-E, if Intel maintains these prices, it's game over for the 6700K for enthusiasts. Even now I'd pick the 5820K over 6700K for keeping for 4-5 years.

After the launch frenzy I bet LGA1150 MB + Core i7 6700K combos at Microcenter will cost quite a bit less. The difference buys you a better graphics card.


No, it's just you omitting the MOST important facts such as 24/7 safe voltage operation max voltages and what type of cooling is actually required to get there. It certaintly isn't "little effort" as a $30 CM 212 Evo heatsink isn't going to get you there.

Some reviewers hit 4.7GHz with stock volts or little extra voltage. I'd love to have this luck with Haswell-E. Little to no effort in my book.

Keep in mind this is still on air but I was able to bump the 6700K up to 4.7 GHz without having to feed it any voltage

http://lanoc.org/review/cpus/7108-intel-i7-6700k-skylake?showall=&start=4

However, our experience so far suggests that 4.7GHz could be a reasonable target with minimal voltage increase.

www.tomshardware.com/reviews/skylake-intel-core-i7-6700k-core-i5-6600k,4252-3.html

--------------------------------------------------------
Review 2 - TechSpot


21*C ambient is very low for many people and Noctua NH-D15 is a $90+ USD cooler. That means if someone's ambient temperatures are 24-28C, this 4.8Ghz would likely fail on 99% of CPU coolers in the world given that Noctua NH-D14 is easily in the top 3 of all air coolers.

4.8GHz+ being possible at all @ air is refreshing after what we saw with Broadwell-K.

-------------------------
Review 3 - Ars Technica using Corsair H100i GTX

Your comment that most reviewers are getting 4.7-4.8Ghz overclocks with "little effort" is highly misleading. Little effort is getting 4.4-4.5Ghz on i7-2600K on the stock $5 Intel heatsink, not requiring a $90-100 cooling solution to get there and still approach 90C!

Thank god, because Core i7 6700K users won't cheap out on a $5 cooler anyway. ~4.5-4.7GHz should be completely doable with a reasonably good cooler (more if you 'win the silicon lottery').


Don't cherry-pick 640x480 / 720P gaming no one will do with a 2600K OC and a discrete GPU.

Now you're being misleading. Once again, Hardware.fr did test a bunch of CPU-bound titles at 1080p (not your imaginary 640x480) and Core i7 6700K was 38% faster than Core i7 2600K, which means that SB would lose with or without OC.

In real world gaming, i7 6700K OC vs. i7 2600K @ 4.5-4.8Ghz is not a good upgrade unless one already did the following:

1) Upgraded their monitor to 1440P/4K/144Hz/FreeSync/GSync;
2) Have at least 980 SLI/Fury CF
3) Have a 1TB SSD or a PCIe 3.0 x4 SSD
4) Upgraded their headphones/speakers

Maybe, but that's not up to you to decide. Some people want to have the latest and greatest, even if if doesn't make perfect sense from an economical perspective.


Skylake is the worst Tock in Intel's history since Conroe. Nehalem/Lynnfield gave about a 15-17.5% increase in IPC, Sandy another 15-16%, and Haswell another 16-17%.
Skylake is just 9% faster (Haswell - Broadwell: 3.3% & Broadwell to Skylake: 5.7% => 1.033x1.057 = 1.09)

Wrong.
http://forums.anandtech.com/showpost.php?p=37608599&postcount=2752

25% faster than i7 2600K OC after 4 years + 8 months (2600K launched Jan 3, 2011) is pathetic, considering this 25% increase in IPC drops < 10% gaming.

Skylake is 10% faster per clock in CPU limited games. GPU-limited prescripted crap running DDR4-2133 doesn't count.
www.hardware.fr/articles/940-1/intel-core-i7-6700k-i5-6600k-z170-skylake-test.html
 
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RussianSensation

Elite Member
Sep 5, 2003
19,458
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Nope, it was on par with the GT-740, an $89 part that launched a year ago on a manufacturing process two generations behind Intel's.

Keep dreaming. And how much will that cost? 6700K already costs $350 without eDRAM and without Iris. Now add Iris + HBM. Who buys a $500 CPU to game on IGP?

^_^ Anything to justify how Skylake-K is not a dud upgrade for SB/IVB/HW K owners.

No need to even use $89 pricing for GT-740 as R7 260X ~ GTX750Ti costs $89. NV is soon launching GTX950 and this is still Maxwell. Once 2016 Pascal comes out, low end will get another 60-80% boost in performance. In 2018 with Volta, another 60-80%.

If someone is a budget gamer, they can also look in the used GPU market.

Skylake is 10% faster per clock in CPU limited games. GPU-limited prescripted crap running DDR4-2133 doesn't count.
www.hardware.fr/articles/940-1/intel-core-i7-6700k-i5-6600k-z170-skylake-test.html

Reading other reviews you posted, almost everyone is getting ~ 10% increase in IPC on average. Ya, that makes it the worst Tock in Intel's history since Conroe. Nehalem/Lynnfield, SB, HW all brought higher increases in IPC.

You are also ignoring the relative context of baseline performance. i7 920/860 not only provided a 15-20% increase in IPC but they overclocked to 3.9-4.4Ghz in an era where Core 2 Quads hardly could. SB hit 4.4Ghz on the included $5 box cooler. Today, 4.7-4.8Ghz on Skylake i7-6700K requires a super high-end air cooler and even with it the temperatures are in the 80-90C range. You keep ignoring this.

Also, what CPU limited situations are you talking about? Can you link them or are you going to regurgitate your 800x600/1024x768 gaming graphs? Why don't you show us 1080P/1440P/4K MSAA/Ultra gaming benchmarks that have Skylake beating Haswell by 10%?

99% of PC gamers on this sub-section aren't going to buy a $350 i7-6700K to play games at the resolutions you keep posting to prove a point. In other words, start linking real world resolutions like I did if you want to make a valid counter-argument.

So far you provided no solid arguments why someone with i7 2600K series CPU or newer should upgrade unless they already have 980 SLI (or faster), 4K monitor (or similar), PCIe 3.0 x4 SSD (or similar), high-end audiophile speakers/headphones, etc. You keep hyping up Skylake but it's literally the least important component to upgrade for anyone on SB OC or later. For productivity, i7 5820K OC wins so you aren't going to have an argument there either.

In other words besides 35W T series or someone on 1st gen i7 or 2nd gen i5, Skylake is a dud for PC enthusiasts/gamers looking to upgrade.

And for those PC gamers who did their research during Z97 generation, they could have already bought a motherboard with an Ultra M.2 32GB/sec slot 2 years ago.

Asrock Z97 Extreme 6 already came with a 32GB/sec M.2 slot.


You also keep advocating that Skylake should be tested with much faster DDR4 but:

1) At the current time DDR4 beyond 2800/3000 speeds gets expensive.

DDR4-2800 16GB = $130
DDR4-3000 16GB = $130
vs.
DDR4-3200 16GB = $190
DDR4-3300 16GB = $250
DDR4-3400 16GB = $250

2) The premiums of higher DDR4 memory beyond DDR4-3000 are better invested towards the X99 + 5820K combo or towards a higher-end CPU cooler or towards a larger SSD or towards a faster videocard. Even if you make the argument that one can overclock DDR4-2800/3000 to 3200-3300 speeds, the benefits are just single digit percentage points:

http://www.guru3d.com/articles_pages/core_i7_6700k_processor_review_desktop_skylake,14.html

Other members already posted this link but you seem to have ignored it.

Since a lot of people are gamers on this forum, you failed to provide sufficient evidence how moving from SB/IVB for gaming is worth it before buying a better monitor, faster GPU(s), larger SSD/M.2, etc. The 25% increase in IPC over 2600K does NOT translate in real world gaming at 1080P/1440P or 4K.

In other words, you keep using transcoding/endoding/rendering benchmarks to prove your IPC point but as I already said anyone using those programs in need of an upgrade is better off with moving from 2600K to 5820K OC anyway or waiting until Broadwell-E/Skylake-E in 2016.
 
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Mar 10, 2006
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The only reason why I'm even contemplating this is because the X79 platform itself is just so old. Intel themselves don't even support it anymore with driver updates.

That was a big motivation for me to move to X99 from X79 as well.

I got nearly $450 for my 4930K that I paid $570 for, so it wasn't bad for a little over a year's worth of heavy-duty use.

Computers are also an important hobby to me so I don't feel bad upgrading for relatively frivolous reasons once a year.
 

Carfax83

Diamond Member
Nov 1, 2010
6,841
1,536
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That was a big motivation for me to move to X99 from X79 as well.

I got nearly $450 for my 4930K that I paid $570 for, so it wasn't bad for a little over a year's worth of heavy-duty use.

Computers are also an important hobby to me so I don't feel bad upgrading for relatively frivolous reasons once a year.

Where did you sell yours? eBay, Craigslist or on a forum?
 

froggermuted

Junior Member
Aug 4, 2015
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still wondering if I should get a 5820k+asus x97-a or a 6700k+asus hero or deluxe.
Both setup are in my budget and a need to buy within a week or 2.
I want to keep it for 4-5 year.
Main goal is gaming @ 144hz/fps in 1080 and eventually in 1440.

Any opinion between those 2 build?


my curent setup is i7 920/p6t se, I got about a dozen crash a day for a couple days, then it will work just fine for a week or 2, even without any oc. I'm getting tired of this shit and I just can't figure out what exactly is wrong with it, never the same bsod, sometime it will just freeze without crashing, and other time it will just crash without any bsod or freeze.


I've been looking on different board and site for a couple days and I just can't decide..
 

stag3

Diamond Member
Feb 7, 2005
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0
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you're pretty much where i am upgrade wise, i was deciding between the 5820 and the 6700k myself, in the end i would have gone for the 6700k because by the time the extra cores matter, it's time to build a new pc anyways
 
Mar 10, 2006
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Where did you sell yours? eBay, Craigslist or on a forum?

eBay. Maybe could have gotten more money selling it on a forum, but I wanted a reasonably quick sale.

Note that I sold it a while ago, shortly after I built my x99 system. Prices may have come down since then, but Intel chips are surprisingly resilient in terms of resale value.
 

WaitingForNehalem

Platinum Member
Aug 24, 2008
2,497
0
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still wondering if I should get a 5820k+asus x97-a or a 6700k+asus hero or deluxe.
Both setup are in my budget and a need to buy within a week or 2.
I want to keep it for 4-5 year.
Main goal is gaming @ 144hz/fps in 1080 and eventually in 1440.

Any opinion between those 2 build?


my curent setup is i7 920/p6t se, I got about a dozen crash a day for a couple days, then it will work just fine for a week or 2, even without any oc. I'm getting tired of this shit and I just can't figure out what exactly is wrong with it, never the same bsod, sometime it will just freeze without crashing, and other time it will just crash without any bsod or freeze.


I've been looking on different board and site for a couple days and I just can't decide..

I had the same problem with my i7 920. Random BSODs and restarts. I've had it since 2008. Several months ago I finally got fed up with it, went to Microcenter, and got an AMD 8320E with mobo for $150. Also replaced the power supply just in case. It has been rock solid ever since.

Skylake looks so lackluster that I think I will just stay with AMD processor, it does everything I need lol. Software development, VMs, some gaming...works great
 
Mar 10, 2006
11,715
2,012
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still wondering if I should get a 5820k+asus x97-a or a 6700k+asus hero or deluxe.
Both setup are in my budget and a need to buy within a week or 2.
I want to keep it for 4-5 year.
Main goal is gaming @ 144hz/fps in 1080 and eventually in 1440.

Any opinion between those 2 build?


my curent setup is i7 920/p6t se, I got about a dozen crash a day for a couple days, then it will work just fine for a week or 2, even without any oc. I'm getting tired of this shit and I just can't figure out what exactly is wrong with it, never the same bsod, sometime it will just freeze without crashing, and other time it will just crash without any bsod or freeze.


I've been looking on different board and site for a couple days and I just can't decide..

Sounds like it's time for an upgrade for sure.

If you plan to overclock, and plan to keep it for 4-5 years, I'll cast my vote for the 5820K. You get very good single-threaded performance and excellent multi-threaded performance, the latter of which will probably matter more in the last two of your 4-5 year range.

X99 platform is also solid.
 

Sweepr

Diamond Member
May 12, 2006
5,148
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800x600? Budget gamers won't be using 20-year-old resolutions that are non-native for their LCDs.

Steam Hardware survey:

1280x1024
1366x768
1440x900
1680x1050

Those 4 are likely the most common budget gaming resolutions.

So with that information, let's look at real world gaming situations for Skylake IGP:

Why not? Here's my take:













www.pcgameshardware.de/Core-i7-6700K-CPU-260905/Tests/Skylake-Test-Core-i7-6700K-i5-6600K-1166741

Intel should have at least gave people the GPU from Broadwell i7-5775C considering their raised the i7-6700K's price from $339 of 4790K and took out the CPU cooler.

It was never meant to beat Broadwell-K, especially without eDRAM. There will be a proper LGA Skylake GT4e part next year. If they dedicated more space to the iGPU you would be complaining and asking for more cores, you better decide what you want.

BFG10K already mentioned this point but it flew over your head or you purposely keep ignoring it to defend the horrible graphics performance for desktop Skylake-K parts. Gamers continue to pay for the useless for gaming IGP in the i5-6600K/6700K. Most of us would much rather not have the IGP and rather pay $350 for:

1) Higher clocked i5/i7
2) 6-8 cores

Boring rant. Get your facts straight, I am not recommending Skylake GT2 over cheaper CPU+dGPU solutions (neither I would prefer a 4C+iGPU chip instead of 6-8 cores, which is why I opted for Haswell-E in first place), me and other users were just examining its performance next to Haswell GT2 and Kaveri. Like or not there's games where it leaves Haswell's iGPU far behind and it's an important upgrade feature wise. It might not beat Kaveri but it significantly closes the gap and let's not forget much cheaper Core i3s will have the same iGPU, maybe at slightly lower clocks (also there's a lot of drivers work to be done).
 
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CHADBOGA

Platinum Member
Mar 31, 2009
2,135
832
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I got nearly $450 for my 4930K that I paid $570 for, so it wasn't bad for a little over a year's worth of heavy-duty use.
I am truly astonished that you were able to sell your 4930K for 79% of what it cost you to buy.

Lots of crazy people out there, I would have wanted a much lower price, but obviously with what you were able to sell it for, then upgrading is literally a no-brainer.

I still wouldn't do this myself though, simply because I wouldn't want the hassle of having to sort out all my software again so soon.
 

shady28

Platinum Member
Apr 11, 2004
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And what happened to Intel's new iGPU H.265 HEVC support?

This is what intel said :

"Intel Core i7-6700K Processor Key Features
...
Intel Quick Sync Video Technology: Media processing for incredibly fast conversion of video files for portable media players or online sharing including support for HEVC (H.265) encode/decode to support Ultra HD 4K"

But it's actually slower than a 4790K in HEVC decode?

Incredibly fast is ~16fps?

I get like 110-150fps on 4k HEVC video using the HW decoder on my GPU.

Intel seems to be failing miserably at competing with themselves.

 
Mar 10, 2006
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I am truly astonished that you were able to sell your 4930K for 79% of what it cost you to buy.

Lots of crazy people out there, I would have wanted a much lower price, but obviously with what you were able to sell it for, then upgrading is literally a no-brainer.

I still wouldn't do this myself though, simply because I wouldn't want the hassle of having to sort out all my software again so soon.

I must admit that I was surprised at the amount that I got for it, but when I thought about it a little more it made sense.

At the time, one had to pay through the nose for DDR4 while X79 allowed one to recycle DDR3 so that may have contributed to the relatively high resale value of my 4930K.

I'll have to poke around eBay to see what they sell for these days post-DDR4 price plunge

EDIT: They go from $360 to $420 it seems.
 
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froggermuted

Junior Member
Aug 4, 2015
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Sounds like it's time for an upgrade for sure.

If you plan to overclock, and plan to keep it for 4-5 years, I'll cast my vote for the 5820K. You get very good single-threaded performance and excellent multi-threaded performance, the latter of which will probably matter more in the last two of your 4-5 year range.

X99 platform is also solid.

I do plan to overclock, specialy with the intel performance tuning protection plan. I got a nh-d14, I might replace the fan on them to get something more effective even if they are more noisy. And I would be happy if I could get it to 4-4.2 for a 24/7 use.

What is worrying me the most is the fact that I can't afford a better mobo if I get the 5820k.
 

RussianSensation

Elite Member
Sep 5, 2003
19,458
765
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you're pretty much where i am upgrade wise, i was deciding between the 5820 and the 6700k myself, in the end i would have gone for the 6700k because by the time the extra cores matter, it's time to build a new pc anyways

The extra cores already matter today in Crysis 3, Ryse Son of Rome, GTA V, The Witcher 3 if you have enough GPU firepower. If he wants to keep his rig for 4-5 years, there will be even more games that use extra cores with DX12.

Also, if the user ever intends to do things outside of gaming/multi-task, 6-8 cores will be faster than the mainstream i7.

If he isn't going to be overclocking, i7-6700K > 5820K.

I do plan to overclock, specialy with the intel performance tuning protection plan. I got a nh-d14, I might replace the fan on them to get something more effective even if they are more noisy. And I would be happy if I could get it to 4-4.2 for a 24/7 use.

What is worrying me the most is the fact that I can't afford a better mobo if I get the 5820k.

When you say "better mobo" are you looking for specific features? I mean the Hero and Deluxe motherboards have a bunch of marketing features that cost large premiums that unless you plan on using them specifically are just money wasted. You can get a very good Z170 board for less $.

http://www.newegg.com/Product/Produ...cm_re=z170_motherboard-_-13-157-633-_-Product
http://www.newegg.com/Product/Produ...cm_re=z170_motherboard-_-13-130-867-_-Product
http://www.newegg.com/Product/Produ...cm_re=z170_motherboard-_-13-132-567-_-Product
http://www.newegg.com/Product/Produ...cm_re=z170_motherboard-_-13-157-629-_-Product

Asus boards are good but it doesn't mean they are automatically worth paying large premiums for over Gigabyte, MSI, Asrock. Just as an example, ASUS Pro Clock allows BCLK overclocking to 400Mhz but Asrock's $150 board is rated up to 650Mhz. It makes sense to research if you actually need the features on the board or otherwise you are just paying extra for little benefit.

Do you have another CPU to try in your X58 platform? You could try dropping a Xeon 56xx into your system and wait it out until Skylake-E. Since you keep your systems for so long, it's something to consider (unless your mobo is faulty).

Honestly if you only aiming for 4.0-4.2Ghz overclock on the 5820K, might as well get the i7 6700K because without overclocking it'll do 4.2Ghz which seems you'd be happy with. But considering the $350 price of the i7-6700K, maybe just pay $419 for the 5820K @ 4.6Ghz?

46x CPU Multiplier
1.328V CPU VCORE (Or less)
1.95V CPU INPUT VOLTAGE (Or less)
Test equipment:

Motherboard: Asus X99 Deluxe (this is more or less similar to the X99-A board you want to get). If you are buying the X99-A board, make sure to get the one with USB 3.1 as it costs just a bit extra.
 
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Mar 10, 2006
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I do plan to overclock, specialy with the intel performance tuning protection plan. I got a nh-d14, I might replace the fan on them to get something more effective even if they are more noisy. And I would be happy if I could get it to 4-4.2 for a 24/7 use.

What is worrying me the most is the fact that I can't afford a better mobo if I get the 5820k.

Eh, I wouldn't worry about that. As long as you buy a board from a reputable brand (and most, if not all of them, are solid these days), it should be packed with more than enough features.
 

froggermuted

Junior Member
Aug 4, 2015
21
0
0
I had the same problem with my i7 920. Random BSODs and restarts. I've had it since 2008. Several months ago I finally got fed up with it, went to Microcenter, and got an AMD 8320E with mobo for $150. Also replaced the power supply just in case. It has been rock solid ever since.

Skylake looks so lackluster that I think I will just stay with AMD processor, it does everything I need lol. Software development, VMs, some gaming...works great


What is baffling me is the fact that it is not consistent. How could it fail so badly for a couple day and work just fine right after it lol. The first time it happen, it took about 3 month before it start failling again, every time after the that it started to fail more and more frequently. I should test the v with a multimeter on my antec quatro 750 but I really doubt it the PSU.
 

froggermuted

Junior Member
Aug 4, 2015
21
0
0
The extra cores already matter today in Crysis 3, Ryse Son of Rome, GTA V, The Witcher 3 if you have enough GPU firepower. If he wants to keep his rig for 4-5 years, there will be even more games that use extra cores with DX12.

Also, if the user ever intends to do things outside of gaming/multi-task, 6-8 cores will be faster than the mainstream i7.

If he isn't going to be overclocking, i7-6700K > 5820K.



When you say "better mobo" are you looking for specific features? I mean the Hero and Deluxe motherboards have a bunch of marketing features that cost massive premiums that unless you plan on using are just money wasted. You can get a very good Z170 board for much less.


I do, but not on a profesional level, so the time it take isnt the most important thing, but it sure nice. As for the mobo I've compared with other board and overall the hero was my first pick for what I wanted and was still within my current budget.

I wonder if any better cpu would be release on both socket.
 

Sweepr

Diamond Member
May 12, 2006
5,148
1,142
131
20.798 views and 325 posts in the last 24 hours. That was a busy 5th August.
Ps: CPUs & Overclocking got more views than Video Cards & Graphics during all week.

Quick summary:

Skylake-S is Here: Core i7 6700K and Core i5 6600K Reviews
- AnandTech
- Hardware Canucks
- The Tech Report
- Guru3D
- Tom's Hardware
- ComputerBase
- Hardware.fr
- HardOCP
- Bit-tech
- Hexus
- PCGamesHardware.de
- PCWorld
- PC.Watch (Japan)
- Lab501
- Jagat Review
- Techspot
- Weeder
- Digital Trends
- Maximum PC
- Review Studio
- TechTeamGB
- Overclock3D
- Hot Hardware
- Lan OC Reviews
- NL Hardware
- PC Perspective
- TweakTown
- KitGuru
- Trusted Reviews
- Hispazone
- Thinkcomputers

Skylake-S Overclocking Summary
- PC Perspective got their sample to 4.7 GHz
- Hardware Canucks got their sample to 4.8 GHz
- Arstechnica got their sample to 4.8 GHz
- Guru 3D got their sample to 4.8 GHz
- Techspot got their sample to 4.8 GHz
- Tom's Hardware got their sample to 4.7 GHz
- Bit-Tech got their sample to 5.0 GHz (Prime stable), 4.8 GHz (Prime + Gaming stable)
- HardOCP got their sample to 4.7 GHz
- AnandTech got their sample to 4.5 GHz
- Hexus got their sample to 4.6 GHz
- Lab501 got their sample to 5.0 GHz
- Maximum PC got their sample to 4.7 GHz
- Lan OC Reviews got their sample to 4.7GHz (Stock Voltage)
- Overclock3D got their sample to 4.8 GHz
- TweakTown got their sample to 4.8 GHz (5.2 GHz CPU-Z Validation)
- KitGuru got their sample to 4.8 GHz
- Hispazone got their sample to 4.8 GHz
- NL Hardware got their sample to 4.8 GHz
 
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WaitingForNehalem

Platinum Member
Aug 24, 2008
2,497
0
71
What is baffling me is the fact that it is not consistent. How could it fail so badly for a couple day and work just fine right after it lol. The first time it happen, it took about 3 month before it start failling again, every time after the that it started to fail more and more frequently. I should test the v with a multimeter on my antec quatro 750 but I really doubt it the PSU.

I was always under the assumption that it was the motherboard. I had my 920 at stock settings most of its life with two different motherboards. The first motherboard was a cheap MSI X58 PRO that failed after a couple of years. Then I got an ASUS Sabertooth X58 that lasted a couple of years before having serious stability issues. When I took my PC apart though the motherboard was bowed in from the CPU cooler. Thinking back my i7 920 build was never really 100% stable. It would go for months with no problems then bam BSOD or random restart.

Still though that CPU was boss, one of the best CPUs and platforms ever made IMO.
 

majord

Senior member
Jul 26, 2015
444
533
136
I wonder when Intel will stop focusing so much on IPC and start looking at improving the DAMN clocks!

I'm very disappointed with the gains on Skylake coming from a non-OC'd Sandy Bridge user. I couldn't give a crap about increases on sythnetic benchmarks when next to no one uses these apps ...

It's pathetic how gaming performance is lower than Haswell or Broadwell. The only big upgrade here is the new TSX extension and it wouldn't even have that if Intel didn't mess up with Haswell ...

Overall just a sad effort on Intel's part. I won't say it's their bulldozer since it's not an actual regression but it's certainly lacklustre ...

For all we know, they may have just done that - The fact its "raw" IPC increase is fairly small over broadwell , yet it does OC higher is a clue we might be looking at an extra pipeline stage or something.

When it comes down to it, there's not a lot Intel can do to 'widen' this core any more for traditional / "raw" performance without making signifcant tradeoffs in perf/watt /mm2, which I think is reflected in it's low IPC increase in such benchmarks. But there's always room to improve branch prediction, cache performance, and of course memory throughput, aka moving to DDR4. So in order to keep this uarch a one-fit for all, stretching its legs seems like the logical step

I haven't had time to pour over results enough to place my bets on the above, but its IPC is 'all over the place' points to some shift in their approach.

I guess we will see in a couple of weeks when they finally tell us the juicy details.


As for the overclocking, and comparison to Sandy, I think it's too early to say yet. But isn't odd this is even a discussion.

Let retail chips get in the hands of people who know what they're doing first. I do have to say though, either my memory is bad, or people , including certain review authors are skewing the reality of what SB was capable of in order to push this case to upgrade. Which I found quite bizare in the AT review to be honest.. " Sandy Bridge, Your Time Is Up" I mean really? If you didn't overclock, sure, But I would be pretty bummed after near 5 yrs, if I could only pull off an ~18% average gain after OCing.

Lets put that into perspective of times gone by. (and don't we miss them).. and pretend the imaginary cases below have no uarch upgrades, only clockspeed.

So That's like having a new P-3 or Athlon 1.0Ghz in year 2000, then in late 2004, "upgrading" to a 1.18Ghz version.

Or even more recently, a 3Ghz Q6600 in early 2007. to a 3.55Ghz one in late 2011

I think I can rest my case there. - The reality of the above scenaros was nothing like that.. it was either an order of magnitude increase in ST perf over those time periods (think 2.2-2.4Ghz A64s). OR a combination of modest ST increases + a doubling of cores.

So Ultimately the point is I just don't see these people moving to anything but hex core moving foward, and for that matter, I think intel are really clutching at straws trying to justify not moving to hex in the high end mainstream socket.

If Zen is a success, I can see this changing next cycle. But even if it's not, I don't know if this will wash again.
 
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rootheday3

Member
Sep 5, 2013
44
0
66
And what happened to Intel's new iGPU H.265 HEVC support?

This is what intel said :

"Intel Core i7-6700K Processor Key Features
...
Intel Quick Sync Video Technology: Media processing for incredibly fast conversion of video files for portable media players or online sharing including support for HEVC (H.265) encode/decode to support Ultra HD 4K"

But it's actually slower than a 4790K in HEVC decode?

Incredibly fast is ~16fps?

I get like 110-150fps on 4k HEVC video using the HW decoder on my GPU.

Intel seems to be failing miserably at competing with themselves.

The miserable failure is your understanding... that table is about CPU based decode only, not using the new hardware decoder. See the hardware.fr review which shows dramatically lower cpu usage and power for applications that use the decoder.
 
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