DisEnchantment
Golden Member
- Mar 3, 2017
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It's April Fools.
For Fun:
Assume Vega can hit a maximum clock of 1680Mhz, 10% overclock
Assume Vega's new features give ~20% improvement
.58 (FuryX relative perf to a 1080ti at 4K) * 1.68 * 1.2 = 1.169
In other words, I imagine a best case scenario Vega stomping on a stock 1080Ti by 17%
Small fault here, you forgot 1680/1050 this time. So it's 0.58 x 1,6 x 1,2 = 1,11. Neck 2 Neck with Oced 1080Tis.
But actually your calculations are the same as what i expect. Worst case 10% slower than 1080Ti, Best case fight against the Custom 1080Ti cards. I think 1080Ti speed should be possible, but AMD will need 300W instead of Nvidias 250W for the same speed. But in highend these 50W don't matter anyway.
does that take into account HBM2 efficiency gains in Vega over HBM efficiency in Figi (though relatively minor, right?), with respect to comparative GDDR5x in Pascal? Also, it's hard to say at this point what kind of general power improvements Vega will bring since so much of it is new to AMD and more in line with nVidia's improvements over the last couple of years, no?
Yes, most of this was possible due to TBR I mentioned in last post.Yes, it's just thinking of what is realistic. 780Ti to 980Ti was a 55% Perf/W Improvement on the same Note:https://www.techpowerup.com/reviews/ASUS/GTX_980_Ti_Matrix/24.html
Well, Vega will have a NCU with better efficiency, new cache subsystem and TBR which is tied to it, HBMs can save some energy and we have a new manufacturing process... so yes, I think they can achieve similar or better results like nV with Kepler -> Maxwell transition.For AMD to equal 1080Ti they need a 65% Perf/W improvement for Vega over P10 :https://www.techpowerup.com/reviews/Gigabyte/GTX_1080_Ti_Xtreme_Gaming/31.html
I don't think that Vega will have bigger improvements in Perf/W than Maxwell, because 980Ti was a pure gaming chip compared to the mixed gpu 780Ti.
Hmm, both Polaris 10 and Vega 10 have a same DPFP rate - 1/16 (FP64/FP32). What exactly is different for Vega that you are calling it a "mixed Gaming/HPC chip"?With P10 and Vega it's the other way around, going from a pure gaming gpu to a mixed Gaming/HPC chip.
Yes, most of this was possible due to TBR I mentioned in last post.
Well, Vega will have a NCU with better efficiency, new cache subsystem and TBR which is tied to it, HBMs can save some energy and we have a new manufacturing process... so yes, I think they can achieve similar or better results like nV with Kepler -> Maxwell transition.
Hmm, both Polaris 10 and Vega 10 have a same DPFP rate - 1/16 (FP64/FP32). What exactly is different for Vega that you are calling it a "mixed Gaming/HPC chip"?
Now they have to contend with a Titan Xp.
Why? Titan Xp is in quite different price segment.Now they have to contend with a Titan Xp.
Where is this "4x INT8 rate" info from? Vega can't do INT8 on NCU, only FP16/FP32/FP64 in 4/2/1 rate and FP16 ops can be "packed" and run on a FP32 SIMD unit with minimal transistor cost.Vega has 4x Int8 rate, Infinity Fabric and other hpc stuff of which i have no idea.
Where is this "4x INT8 rate" info from? Vega can't do INT8 on NCU, only FP16/FP32/FP64 in 4/2/1 rate and FP16 ops can be "packed" and run on a FP32 SIMD unit with minimal transistor cost.
Anyway, according to AMD materials Infinity Fabric is just a 256-bit bi-directional crossbar, so it can't consumes so much transistors as well.