NVIDIA GeForce GTX 780 Review: The New High End
by Ryan Smith on May 23, 2013 9:00 AM ESTSynthetics
As always we’ll also take a quick look at synthetic performance, though as GTX 780 is just another GK110 card, there shouldn't be any surprises here. These tests are mostly for comparing cards from within a manufacturer, as opposed to directly comparing AMD and NVIDIA cards. We’ll start with 3DMark Vantage’s Pixel Fill test.
Pixel fill is traditionally bound by ROP and memory throughput, but with enough of both the bottleneck can shift back to the shader blocks. In this case that’s exactly what happens, with the GTX 780 trailing GTX Titan by about the theoretical difference between the two cards. On the other hand it’s very odd to see the GTX 680 get so close to the GTX 780 in this test, given the fact that the latter is more powerful in virtually every way possible.
Moving on, we have our 3DMark Vantage texture fillrate test, which does for texels and texture mapping units what the previous test does for ROPs.
Unlike pixel fill, texel fill is right where we expected it to come in compared to cards both above and below the GTX 690.
Finally we’ll take a quick look at tessellation performance with TessMark.
NVIDIA’s tessellation performance is strongly coupled to their SMX count, so the high number of SMXes (12) on the GTX 780 helps it keep well ahead of the pack. In fact we’re a bit surprised it didn’t fall behind GTX Titan by more than what we’re seeing. On the other hand the lead over the GTX 580 is right where we’d expect it to be, showcasing the roughly trebled geometry performance of GTX 780 over GTX 580.
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milkman001 - Friday, May 24, 2013 - link
FYI,On the "Total War: Shogun 2" page, you have the 2650x1440 graph posted twice.
JDG1980 - Saturday, May 25, 2013 - link
I don't think that the release of this card itself is problematic for Titan owners - everyone knows that GPU vendors start at the top and work their way down with new silicon, so this shouldn't have come as much of a surprise.What I do find problematic is their refusal to push out BIOS-based fan controller improvements to Titan owners. *That* comes off as a slap in the face. Someone spends $1000 on a new video card, they deserve top-notch service and updates.
inighthawki - Saturday, May 25, 2013 - link
The typically swapchain format is something like R8G8B8A8 and the alpha channel is typically ignored (value of 0xFF typically written), since it is of no use to the OS, since it will not alpha blend with the rest of the GUI. You can create a 24-bit format, but it's very likely that for performance reasons, the driver will allocate it as if it were a 32-bit format, and not write to the upper 8 bits. The hardware is often only capable of writing to 32 bit aligned places, so its more beneficial for the hardware to just waste 8 bits of data and not have to do any fancy shifting to read or write from each pixel. I've actually seen cases where some drivers will allocate 8-bit formats as 32-bit formats, wasting 4x the space the user thought they were allocating.jeremyshaw - Saturday, May 25, 2013 - link
As a current GTX580 owner running at 2560x1440, I don't have any want of upgrade, especially in compute performance. I think I'll hold out for at least one more generation, before deciding.ahamling27 - Saturday, May 25, 2013 - link
As a GTX 560 Ti owner, I am chomping at the bit to pick up an upgrade. The Titan was out of the question, but the 780 looks a lot better at 65% of the cost for 90% of the performance. The only thing holding me back is that I'm still on z67 with a 2600k overclocked to 4.5 ghz. I don't see a need to rebuild my entire system as it's almost on par with the z77/3770. The problem is that I'm still on PCIe 2.0 and I'm worried that it would bottleneck a 780.Considering a 780 is aimed at us with 5xx or lower cards, it doesn't make sense if we have to abandon our platform just to upgrade our graphics card. So could you maybe test a 780 on PCIe 2.0 vs 3.0 and let us know if it's going to bottleneck on 2.0?
Ogdin - Sunday, May 26, 2013 - link
There will be no bottleneck.mapesdhs - Sunday, May 26, 2013 - link
Ogdin is right, it shouldn't be a bottleneck. And with a decent air cooler, you ought to be
able to get your 2600K to 5.0, so you have some headroom there aswell.
Lastly, you say you have a GTX 560 Ti. Are you aware that adding a 2nd card will give
performance akin to a GTX 670? And two 560 Tis oc'd is better than a stock 680 (VRAM
capacity not withstanding, ie. I'm assuming you have a 1GB card). Here's my 560Ti SLI
at stock:
http://www.3dmark.com/3dm11/6035982
and oc'd:
http://www.3dmark.com/3dm11/6037434
So, if you don't want the expense of an all new card for a while at the cost level of a 780,
but do want some extra performance in the meantime, then just get a 2nd 560Ti (good
prices on eBay these days), it will run very nicely indeed. My two Tis were only 177 UKP
total - less than half the cost of a 680, though atm I just run them at stock speed, don't
need the extra from an oc. The only caveat is VRAM, but that shouldn't be too much of
an issue unless you're running at 2560x1440, etc.
Ian.
ahamling27 - Wednesday, May 29, 2013 - link
Thanks for the reply! I thought about SLI but ultimately the 1 GB of vram is really going to hurt going forward. I'm not going to grab a 780 right away, because I want to see what custom models come out in the next few weeks. Although, EVGA's ACX cooler looks nice, I just want to see some performance numbers before I bite the bullet.Thanks again!
inighthawki - Tuesday, May 28, 2013 - link
Your comment is inaccurate. Just because a game requires "only 512MB" of video ram doesn't mean that's all it'll use. Video memory can be streamed in on the fly as needed off the hard drive, and as a result you can easily use a lot if you wanted as a performance optimization. I would not be the least bit surprised to see games on next gen consoles using WAY more video memory than regular memory. Running a game that "requires" 512MB of VRAM on a GPU with 4GB of VRAM gives it 3.5GB more storage to cache higher resolution textures.AmericanZ28 - Tuesday, May 28, 2013 - link
NVIDIA=FAIL....AGAIN! 780 Performs on par with a 7970GE, yet the GE costs $100 LESS than the 680, and $250 LESS than the 780.