What about Skylake Iris Pro?

[boozzer]

how fast is it? what is it's performance compare to a 980? 10%? 30%? 50%?

 

[LTC8K6]

how fast is it? what is it's performance compare to a 980? 10%? 30%? 50%?

When it's benched, we'll let you know.

I think a 980M will be much faster, but it will also use much more power.

 

[LTC8K6]

Think it'll be restricted to only the expensive i7's though? I'd like to see it on a mainstream i5-k.

I would wonder why it would be restricted.

i3's have had the fastest igp's up to this point, the exception being IP5200, which has eDram.

Maybe the eDram only fits on certain dies?

 

[MrTeal]

Dualcore Broadwell GT2 is 82mm2. GT3 is 133mm2. Thats 41mm2 and not 49mm2. 2 cores+L3 is around 25mm2.

So a theoretical Broadwell 4+4 with 72EUs would be ~199mm2.

133-82 is 51, not 41. I'm just going by the numbers AT posted. I'm not sure why they said 49 instead of 51, but I ran with it.

Broadwell-U will be derived from two main dies. The larger design contains the full 48 EU (two common slices with 6x8 EU sub-slices all in) configuration for 1.9 billion transistors in 133 mm2, while the 24 EU design (one common slice, 3x8 sub-slices) will measure 1.3 billion transistors in 82 mm2.

This puts the size of one common slice with 3x8 sub-slices at 600 million transistors / 49 mm2, and thus the die without the graphics subsystem at all at 700 million transistors for 33 mm2. This would mean the cores, the Last Level Cache, the IO and memory controller all fit into the 700 million.

 

[Blue_Max]

I would wonder why it would be restricted.

i3's have had the fastest igp's up to this point, the exception being IP5200, which has eDram.

Maybe the eDram only fits on certain dies?

Exactly - the very top Iris Pro has always been restricted to the top-end i7 chips... I think having it on an i5 would be a hit!

 

[itsmydamnation]

i remember fcat for iris pro being terrible but now i cant find the review. does anyone know of any benchmarks done with FCAT or frame frame time / bf4 ingame counters etc?

 

[MrTeal]

Someone said Iris Pro in Skylake might be as powerful as a 650ti.I find that assumption extremely hard to believe. Even the best AMD APU today doesn't have igpu as powerful as a 7750 let alone 650ti so my guess is Iris Pro will be around 6670 ddr3 level of performance.

Why? From Anand's numbers the current Haswell Iris Pro implementation already trades blows pretty well with a GT 640. The 650 Ti is essentially twice the card that the 640 is (768 Kepler shaders vs 384 at around the same frequency), while the top Skylake GT4e will be adding 80% more EUs to the 40 found in GT3e. We don't know that kind of improvements there will per EU going from Gen7 to Gen9, but it's not outside the realm of possibility that a 72EU Skylake Iris Pro could be twice as powerful as a 40EU Haswell one at the same frequencies.

Well, looks like I was extremely wrong after all. Gen8 graphics even at 24EU are a massive upgrade over Gen7. Even if Gen9 brings nothing to the table, the top 72EU part is going to be way faster than a 650Ti, or even a 750Ti.

 

[sm625]

It might be faster than a 750, but they are going to charge two arms and a leg for it. It will cost an entire 960, making it as irrelevant as all previous intel graphics.