Intel Skylake / Kaby Lake

[nvgpu]

https://forum.beyond3d.com/threads/direct3d-feature-levels-discussion.56575/page-27#post-1865163

Skylake is FL12_1, supports ROV as well as ConservativeRasterization, TiledResources, ResourceBinding with Tier 3 respectively.

Skylake Gen9 GPU is the most advanced GPU for APUs, embarassing AMD in feature level support.

 

[Tovarisc]

Didn't notice these as of yet posted here.

HardOCP; http://www.hardocp.com/article/2015/08/05/intel_skylake_core_i76700k_ipc_overclocking_review

Bit-tech; http://www.bit-tech.net/hardware/2015/08/05/intel-skylake-review/1

Hexus; http://hexus.net/tech/reviews/cpu/85193-intel-core-i7-6700k-14nm-skylake/

Guru3D; http://www.guru3d.com/articles-pages/core-i7-6700k-processor-review-desktop-skylake,1.html

 

[Qwertilot]

Not I think a super surprise about the power - the 14nm process doesn't seem to like driving to really big clock speeds? Hence this specific processor isn't that power efficient.
(A comparison to the 65w locked version rather shows that too I guess.).

It seems to be considerably more power efficient around the 35w quad mark. Look at the expected clock speeds for 35w Skylake vs Haswell say. Quite a bit higher.

The bigger IGP's are coming. Seemingly maybe in a big way with that extra kabylake refresh.

 

[Sweepr]

https://forum.beyond3d.com/threads/direct3d-feature-levels-discussion.56575/page-27#post-1865163



Skylake Gen9 GPU is the most advanced GPU for APUs, embarassing AMD in feature level support.

Nice find. It's the first major architecture overhaul since Ivy Bridge (2012), can't wait to see what GT4e will do with some mature drivers.

 

[Sweepr]

Looking a bit closer the clock per clock gains range from none/minor to +25% (beating some 6C/12T chips from previous generations). From Guru3D review:

For this reason the average performance boost will vary depeding on the the particular benchmarks tested, and we're seeing this in the first reviews.

 

[NTMBK]

Don't know why this thread is in the CPU forum, the biggest improvements are obviously in the GPU:

4.5X faster than Sandy Bridge, nice.

 

[dahorns]

Seems this biggest benefits of Skylake are:

1) Overclocking--4.6 to 4.7 on air appears to be an average chip
2) Chipset features
3) IGPU--maybe? more potential than performance at this point
4) Room for performance increases by using faster DDR4 (compare Anand's disappointing gaming results with HardOCP's review, which contains scores at a wider range of DDR4 speeds)

 

[Sweepr]

Skylake-S is Here: Core i7 6700K and Core i5 6600K Reviews
- AnandTech
- The Tech Report
- Guru3D
- Tom's Hardware
- ComputerBase
- Hardware.fr
- HardOCP
- Bit-tech
- Hexus
- PCGamesHardware.de
- PCWorld
- PC.Watch (Japan)
- Lab501

 

[peroni]

A bit surpised IGP HD530 is so behind Iris Pro 6200

 

[coercitiv]

Don't know why this thread is in the CPU forum, the biggest improvements are obviously in the GPU

In the case of GTA V on IGP one could argue the biggest improvement was the move to DDR4.

 

[BFG10K]

4.5X faster than Sandy Bridge, nice.

This is sarcasm, right? 4.5x since 2011 (four years) is impressive? You can get 4.5x from a single GPU generation.

I think Intel's requirement of certain margins makes Iris continually not fit into any market.

It costs too much to add to a low-end CPU, while nobody buys a ( $350 CPU + cost of Iris + cost of eDRAM ) to play games on an IGP when a ( $70 CPU + $150 GPU ) will destroy it and cost much less.

 

[NTMBK]

A bit surpised IGP HD530 is so behind Iris Pro 6200

Why? The 6200 is GT3e (48 execution units, and a 128MB eDRAM cache), the 530 is GT2.

 

[ShintaiDK]

Graphics wise the biggest surprise is that Intel is DX12 FL12.1 capable. That means AMD is the only one now not supporting FL12.1.

And Skylake IGP is the most advanced featurewise.

 

[Sweepr]

Seems this biggest benefits of Skylake are:

4) Room for performance increases by using faster DDR4 (compare Anand's disappointing gaming results with HardOCP's review, which contains scores at a wider range of DDR4 speeds)

That's a good point, look how much Skylake-S dGPU gaming performance scales with faster memory (CPU-limited):

And lastly, Metro: Last Light is certainly one of our newest and most popular gaming engines used. This one is also run at a higher resolution with higher image quality, so it should be more GPU limited than the others. Our "apples to apples" results show Skylake with a 3% increase over Haswell, a 9% increase over Ivy Bridge, and a 12% increase over Sandy Bridge. Again we see that bringing Skylake up to its stock 2133MHz memory clock will give it a solid boost, and scaling up to 2666MHz and above will bring large increases.

http://www.hardocp.com/article/2015...76700k_ipc_overclocking_review/8#.VcIRifm1HVI

Shintai was right.

1) Overclocking--4.6 to 4.7 on air appears to be an average chip

Slightly better than Haswell according to HardOCP. People who predicted Broadwell-K like overclocking capability because it's a 14nm chip were utterly wrong it seems.

Pre-Devil's Canyon processors varied wildly when it came to overclocking. If you could get a 4770K or 4660K that would do 4.5 or 4.6GHz under stress testing, you were doing very well. That does not seem to be the case with Skylake.

In the "Guys Talk, You Hear Things" category, it seems that "everyone" is having luck with their Skylake processors and getting those to 4.7GHz overclocks with 3000MHz memory speeds. It seems that the only thing enthusiasts are going to be bound by is what speed RAM they can afford. There are not a lot of 3600+ DDR4 kits floating around right now, so we were lucky that we could show you that speed. This is certainly good news.

 

[jagilbertvt]

I didn't see this posted previously, but I may have missed it.

Newegg Skylake Combos: http://www.newegg.com/Intel/EventSaleStore/ID-727

Only has the i5-6600k currently, and they aren't "releasing" until 8/14.

 

[Cogman]

At almost every turn Skylake looks like a lemon. Minor IPC improvements, slower igpu (wtf?) same power consumption? And a requirement for new memory which brings almost nothing to the table.

The fact that Anandtech had to go back to Sandybridge, a nearly 5 year old CPU, to say "Your time is up Sandy bridge!" is sad and a little funny. So looks like there is no point in upgrading your CPU every other year, looks like the new normal is going to be to use a CPU for 5 to 10 years before the small improvements will come along that will make a new CPU worth it.

 

[NTMBK]

This is sarcasm, right? 4.5x since 2011 (four years) is impressive? You can get 4.5x from a single GPU generation.

Erm, remind me when that happened? Because I sure don't remember that.

Discrete GPUs have made similar gains over the same period- compare a HD 6970 with a Fury X- but they took just as long to get there.

EDIT: And I was comparing with the mainstream chip, i.e. Skylake. If you want to compare with Broadwell with eDRAM, it's over 6X faster... and discrete GPUs have not improved any near that much in the same time period.

 

[ShintaiDK]

Shintai was right.

Memory is really important with Skylake, else its simply too bound. With the right memory it really leaves Haswell behind.

Now if EVGA didnt drop the ball completely on the Stinger, I wouldnt sit and wonder what board to get.

 

[peroni]

Why? The 6200 is GT3e (48 execution units, and a 128MB eDRAM cache), the 530 is GT2.

We only know that now, I think many (at least me) were expecting IGP performance on par or better than Broadwell

 

[Face2Face]

Would love a Skylake i3/i5 NUC for my TV. Other than that, I may try to find a used 3770K at this point...

 

[Pwndenburg]

Well, some of improvements look nice for the folks that use them. For me, I'm a gamer who builds strictly gaming pc builds. I'll just sit on my locked i7 4770, I just don't see any of these chips that offer enough to put out money on it. I certainly am not going to buy new memory on top of everything else for something that appears to be a regression for my usage case in some scenarios. Perhaps the E line will give me a reason at some point. I'm sure I could get around 12% gains if I got the DC and oced it. But, my cpu is like Rum and soda, it gets the job done.

 

[dahorns]

We only know that now, I think many (at least me) were expecting IGP performance on par or better than Broadwell

On par with Broadwell Iris Pro would have been crazy. And you weren't paying attention if you thought that was going to be the case.

 

[Head1985]

At almost every turn Skylake looks like a lemon. Minor IPC improvements, slower igpu (wtf?) same power consumption? And a requirement for new memory which brings almost nothing to the table.

The fact that Anandtech had to go back to Sandybridge, a nearly 5 year old CPU, to say "Your time is up Sandy bridge!" is sad and a little funny. So looks like there is no point in upgrading your CPU every other year, looks like the new normal is going to be to use a CPU for 5 to 10 years before the small improvements will come along that will make a new CPU worth it.

I dont think its even worth upgrading from sandy bridge.I have 2500K@5Ghz almost 5 years old..

 

[Ruiner1]

An interesting single thread performance boost compared to my current X58 platform.

http://browser.primatelabs.com/geekbench3/compare/2749109?baseline=3109169#

However, the only thing I do which needs any level of compute performance is H264 encoding - looking at the multithread comparison I'm likely to be getting a fairly-competitive level of performance right now I think.

This is a system from 2009 which has had £30 spent on memory and about £200 on second-hand Xeon CPUs since new. It's also had 3 gfx cards, but one was to replace a hardware failure and one was to replace a software failure (AMD's linux drivers no longer properly supporting my card).

 

[peroni]

On par with Broadwell Iris Pro would have been crazy. And you weren't paying attention if you thought that was going to be the case.

My bad, I did not follow the latest news for some time. I still rock a Core Duo E6600 after all