The NVIDIA GeForce GTX 980 Ti Review
by Ryan Smith on May 31, 2015 6:00 PM ESTSynthetics
As always we’ll also take a quick look at synthetic performance. Being a virtual copy of the GTX Titan X, GTX 980 Ti should perform very similarly here, just as we've seen in our gaming tests.
Compared to GTX Titan X, GTX 980 Ti does technically lose 2 Polymorph Engines as a result of losing 2 SMMs. However as with our games, this doesn’t really hinder GTX 980 Ti, leading it being within a few percent of GTX Titan X on tessellation performance.
As for texel and pixel fillrates, the results are both as-expected and a bit surprising. On the expected side, we see the GTX 980 Ti trail GTX Titan X by a bit, again taking a hit from the SMM loss. On the other hand we’re seeing a larger than expected drop in the pixel fill rates. GTX 980 Ti loses some rasterization throughput from the SMM loss, but a 15% drop in this test is much larger than 2 SMMs. Just to be sure we checked to make sure the ROP/MC configuration of GTX 980 Ti was unchanged at 96 ROPs, so while we can explain 10% or so (GTX 980 Ti doesn't have its clockspeed advantage in such a short test), we're at a loss to fully explain the last 5%. The short run time of the test also makes it more varaible than other tests, so that may be the last 5%.
Though in either case, despite what 3DMark is telling us, we aren’t seeing any signs of GTX 980 Ti struggling at 4K versus GTX Titan X. So if there is a meaningful difference in pixel fillrates, it’s not impacting game performance.
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ComputerGuy2006 - Sunday, May 31, 2015 - link
Well at $500 this would be 'acceptable', but paying this much for 28nm in mid 2015?SirMaster - Sunday, May 31, 2015 - link
Why do people care about the nm? If the performance is good isn't that what really matters?Galaxy366 - Sunday, May 31, 2015 - link
I think the reason people talk about nm is because a smaller nm means more graphical power and less usage.ComputerGuy2006 - Sunday, May 31, 2015 - link
Yeah, we also 'skipped' a generation, so it will be even a bigger bang... And with how old the 28nm is, it should be more mature process with better yields, so these prices look even more out of control.Kevin G - Monday, June 1, 2015 - link
Even with a mature process, producing a 601 mm^2 chip isn't going to be easy. The only larger chips I've heard of are ultra high end server processors (18 core Haswell-EX, IBM POWER8 etc.) which typically go for several grand a piece.chizow - Monday, June 1, 2015 - link
Heh, I guess you don't normally shop in this price range or haven't been paying very close attention. $650 is getting back to Nvidia's typical flagship pricing (8800GTX, GTX 280), they dropped it to $500 for the 480/580 due to economic circumstances and the need to regain marketshare from AMD, but raised it back to $650-700 with the 780/780Ti.In terms of actual performance gains, the actual performance increases are certainly justified. You could just as easily be paying the same price or more for 28nm parts that aren't any faster (stay tuned for AMD's rebranded chips in the upcoming month).
extide - Monday, June 1, 2015 - link
AMD will launch the HBM card on 400 series. 300 series is an OEM only series. ... just like ... wait for it .... nVidia's 300 series. WOW talk about unprecedented!chizow - Monday, June 1, 2015 - link
AMD already used that excuse...for the...wait for it...8000 series. Which is now the...wait for it....R9 300 OEM series (confirmed) and Rx 300 Desktop series (soon to underwhelm).NvidiaWins - Thursday, June 18, 2015 - link
RIGHT! AMD has been backpedaling for the last 3 years!Morawka - Monday, June 1, 2015 - link
980 was $549 at release.. So was the 780Nvidia is charging $650 for the first few weeks, but when AMD's card drops, you'll see the 980 Ti get discounted down to $500.
Just wait for AMD's release and the price will have to drop.