Intel Skylake / Kaby Lake

[ShintaiDK]

Yep but I suppose motherboard prices would be a bit higher and DDR4 is more expensive than DDR3 right now so the price may end up quite a bit higher than Haswell setup. I'm on a fence to either buy 4670(k) or just wait. If I would go with Haswell I would buy K variant and if going with Skylake I would just take i5-6600.

You can always use DDR3L if DDR4 prices go completely crazy. And I dont see mobo prices increase, unless you go for the full package with 3 M.2 slots etc. But that wont add much to begin with. You still gonna see dirt cheap boards and up to loco prices for some silly bling bling boards.

 

[inf64]

I know, I plan on buying just a mid range board (up to 120e max). Don't need anything fancy , just 4 DDR slots, 2 PCIe for possible 2nd GPU , the rest standard stuff.

 

[cytg111]

Nice, 20% over haswell. not bad not bad at all. At 20% I'd be hard pressed to choose between a hexcore and a quadcore+20%st .. I would problary go with the quad!

 

[stockwiz]

What's wrong with the 5820K? It's like $60 or so more expensive than the mainstream "K" at a chip level. It uses DDR4 just like Skylake, and I guess you might have to pay a premium for the board...but if you want six cores at basically mainstream prices, 5820K does it...

I've been giving that serious thought, actually. Will wait for a few more benchmarks to leak from more reputable sources. I'm in no rush.

 

[StinkyPinky]

I wonder how well the 6770k will overclock.

Either way that's some nice performance gains. Intel need to up their graphics performance though, it's pretty underwhelming. Hopefully gen 9 is a nice improvement.

 

[CHADBOGA]

Yep but I suppose motherboard prices would be a bit higher and DDR4 is more expensive than DDR3 right now so the price may end up quite a bit higher than Haswell setup. I'm on a fence to either buy 4670(k) or just wait. If I would go with Haswell I would buy K variant and if going with Skylake I would just take i5-6600.

Why would you get a K variant with Haswell, but not with Skylake?

 

[Ajay]

I wonder how well the 6770k will overclock.

Either way that's some nice performance gains. Intel need to up their graphics performance though, it's pretty underwhelming. Hopefully gen 9 is a nice improvement.

Yeah, that is the $20K question right now. If SKL is available in August, I expect some overclocking junky to crank up an ES CPU for everyone sometime in July (or June, if we are lucky).

 

[jpiniero]

I do wonder if the 10% improvement over Broadwell compared to the typical 5% is due to the additional bandwidth of DDR4 (?). I do want to see how this compares to the boost from the L4 that Broadwell-C has although obviously the later has lower stock speeds.

Core i5 6400 has considerably lower clocks than the other quads. Makes me wonder if Intel will release this quad at a lower price, perhaps ~$160?

It's possible but I would think $170 is more realistic. The most expensive i3 at Newegg is $160 right now.

 

[Sweepr]

Nice, 20% over haswell. not bad not bad at all. At 20% I'd be hard pressed to choose between a hexcore and a quadcore+20%st .. I would problary go with the quad!

Me too. Core i7 6700K is dangerously close to Core i7 5820K performance @ CB11.5 MT and 3DMark, minor 2-3% difference.

I do want to see how this compares to the boost from the L4 that Broadwell-C has although obviously the later has lower stock speeds.

Core i7 4790K vs Core i7 5775C vs Core i7 6600K @ same clocks should be interesting.

It's possible but I would think $170 is more realistic. The most expensive i3 at Newegg is $160 right now.

Hopefully they are realizing we want cheaper quad-cores. An unlocked Skylake Core i3 would be great too, but then I'm asking too much.

 

[VirtualLarry]

Hopefully they are realizing we want cheaper quad-cores. An unlocked Skylake Core i3 would be great too, but then I'm asking too much.

I agree. Cheaper (locked?) quads would be nice.

Wasn't there a blurb in an Intel slide that suggested fine-grained BCLK adjustment might be possible with SKL?

 

[Sweepr]

I agree. Cheaper (locked?) quads would be nice.

Wasn't there a blurb in an Intel slide that suggested fine-grained BCLK adjustment might be possible with SKL?

They mentioned ''Enhanced Full Range BCLK Overclocking''.

 

[Shivansps]

For unlocked...

 

[jpiniero]

For unlocked...

Well yeah. You didn't think they would let locked processors use it, did you?

 

[PPB]

The only problem i see with skl besides the god awful unidimm packaging is the renewed importance in VRM quality without the IFVR. Now we are back to the more dubious vrm schemes, how many phases go really to the cpu, how many to the igp, etc. The simplified model haswell proposed was good imo. No fears on running a 4790k on a budget board.

 

[Nothingness]

4.2GHz max for Core i7 6700K vs 4.4GHz max for Devil's Canyon Core i7 4790K. 4-core turbo is probably 100MHz or nothing for Skylake.

Devil's Canyon turbo is 4.2 GHz when all cores are active. It could be that Skylake also is 4.2 GHz and that it can maintain that frequency longer than DC thanks to process improvements (OTOH isn't DC already maintaining turbo during all of Cinebench?).

I'll wait for explicit single thread benchmarks results, even though these MT results are pretty good

 

[Sweepr]

The amount of catching up AMD needs is scary. 220W FX9590 barely outperformed the 4-thread Core i5 6600K at stock @ CB, was slower at PCMark 8 & 3DMark and it will get trounced in any task where performance per core is needed.

 

[jji7skyline]

The amount of catching up AMD needs is scary. 220W FX9590 barely outperformed the 4-thread Core i5 6600K at stock @ CB, was slower at PCMark 8 & 3DMark and it will get trounced in any task where performance per core is needed.

Well until they catch up they're forced to play the budget game. The FX9590 is currently the same price as the 4690K.

Unfortunately, that's not very profitable as can be seen by their Q1'15 deficit.

 

[ShintaiDK]

Well until they catch up they're forced to play the budget game. The FX9590 is currently the same price as the 4690K.

Unfortunately, that's not very profitable as can be seen by their Q1'15 deficit.

When they catch up? Unfortunately that a very unlikely scenario. The IPC difference between Skylake and Pilediver is 2.35x or more. The IPC improved around 1.40x from P4 to Conroe for example.

 

[Sweepr]

It gets even worse if we consider performance per watt. Core i7 6700T should provide Core i7 4770K levels of performance at 35W TDP. Nothing from AMD's line up now till god know when (Zen?) comes remotely close.

 

[Qwertilot]

I know the T stuff has often been looked down on rather, but if you're getting this big a percentage of the performance of the 95W ones it does make you wonder how many people those models are still worthwhile for

They could well be the better recommendation for mainstream builds this time round. Maybe the 65w compromise option instead?

Wonder how much of the extra in the bigger TDP models is about headroom for the iGPU.

 

[ShintaiDK]

It also makes one wonder, if there will even be higher than 35W non K SKUs on something like 7nm

 

[Insert_Nickname]

I know the T stuff has often been looked down on rather, but if you're getting this big a percentage of the performance of the 95W ones it does make you wonder how many people those models are still worthwhile for

They could well be the better recommendation for mainstream builds this time round. Maybe the 65w compromise option instead?

Wonder how much of the extra in the bigger TDP models is about headroom for the iGPU.

My thoughts exactly, and 65W does seem like a good compromise for mainstream chips. Keeping the high-end at 95W is also perfectly reasonable, enthusiasts have no trouble handling the additional cooling required.

I'm still going Skylake-E for my main PC, but this has some serious potential for my secondary HTPC.

 

[NTMBK]

It also makes one wonder, if there will even be higher than 35W non K SKUs on something like 7nm

*looks sadly at 130W Phenom II spaceheater under his desk*

 

[Sweepr]

Looks sadly at my Core i7 920 (130W) OCED to 4.1GHz @ secondary build. Now 35W chips are considerably faster. These new T models make most CPUs look like power hogs.

 

[cytg111]

Next items of interest

1. Throttling profile
2. Overclocking headroom
3. Gonna foobar TSX again?
(4. HT performance)

crossing fingers..