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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Daroller - Monday, June 1, 2015 - link
HAHAHAHAHA website lagged out and triple posted. That's awesome. Go go Google Chrome!naxeem - Monday, June 1, 2015 - link
I don't think it is all good with the overclocking part. On stock air (albeit 80% fan speed unless used Accelero IV at 40%) cooler TitanX cards easily get to 1300/1440 normal/boost clocks. Same cards on water got to 1375/1500 with cool-ish 55°C at max load. That applies to two TitanX in SLI with modified BIOS that allows for more power consumption and thus removes artificial limit.Since the chip is identical and 980Ti is actually partially defective TitanX with 50% less RAM and switched off defective parts, I highly doubt clock potential differs, especially not in favor of 980Ti.
I would and do expect 980Ti to clock the same as Titan X (loosing some on chip quality, gaining some on half the VRAM).
FlushedBubblyJock - Saturday, June 13, 2015 - link
Nope. Other test sites show the opposite - 980TI is an overclock monster and beats the TXtruongpham - Monday, June 1, 2015 - link
Ryan, can you bench this one with Windows 10 and DX12?Ryan Smith - Monday, June 1, 2015 - link
We won't be doing any complete Win10 benchmarking until that OS is finished and released. As for DX12, there are no games out yet that re using it; the handful of benchmarks are focused tech demos.cknobman - Monday, June 1, 2015 - link
Nvidia must have seen some undisclosed AMD benchmarks, went into panic mode, and rushed a release for the 980TI to get customers before the AMD launch.While its a great card the problem is Nvidia screwed some of their own customers.
I take this as a sign that whatever AMD is coming out with must be pretty good. :)
galta - Monday, June 1, 2015 - link
Maybe, but it could prove to be of little importance.You see, Win10 will be out on June 29th. Realistically speaking, DX12 games won't be real before Christmas or 2016.
It is more than enough time for a possible counterstrike from nVidia.
Having said that, unless one really really needs to upgrade now I would strongly recommend waiting for another month, just to check what Fiji is up to.
As of me, I have a pair of 980GTX Strix and have been with nVidia for a while, but I really hope AMD gets this one right.
Real competition is always good.
JayFiveAlive - Monday, June 1, 2015 - link
I've been waiting for this beast to drop... now to decide whether it's a good time to bite.Current setup is a 2500K OC to 4.4Ghz and a GTX 670, so kinda oldish... Was considering upgrading to a Skylake proc come Sept and this 980 Ti, but probably Gigabyte variant... hmmm.
Peichen - Tuesday, June 2, 2015 - link
Why upgrade CPU? 2500K at 4.4GHz is still very fast and shouldn't affect performance of a 980Ti much. Maybe 10% less fps vs if you have a 6-core Extreme but why spend $300-400 to get 10% improvement?mapesdhs - Wednesday, June 3, 2015 - link
Plus if he does need some more CPU oomph, just put in a 2700K. I've built six so far, every one of them happily runs at 5GHz with just a decent air cooler & one fan for quiet operation, though for final setups I use an H80 and two quiet fans. Some games will benefit from more than 4 cores, depends on the game (eg. PvP online FPS can involve a lot of host side scripting, eg. Project Reality, and the upcoming Squad).True though, 2500K is still very potent, just built a 4.8 setup for a friend. She lives on an island, it'll probably be the quickest system for miles around. :D