Final Words

Back when Sony announced the specifications of the PlayStation 3, everyone asked if it meant the end of PC gaming. After all Cell looked very strong and NVIDIA's RSX GPU had tremendous power. We asked NVIDIA how long it would take until we saw a GPU faster than the RSX. Their answer: by the time the PS3 ships. So congratulations to NVIDIA for making the PS3 obsolete before it ever shipped, as G80 is truly a beast.

A single GeForce 8800 GTX is more powerful overall than a 7900 GTX SLI configuration and even NVIDIA's mammoth Quad SLI. Although it's no longer a surprise to see a new generation of GPU outperform the previous generation in SLI, the sheer performance we're able to attain because of G80 is still breathtaking. Being able to run modern day games at 2560x1600 at the highest in-game detail settings completely changes the PC gaming experience. It's an expensive proposition, sure, but it's like no other; games just look so much better on a 30" display at 2560x1600 that it makes playing titles at 1600x1200 seem just "ok". We were less impressed by the hardware itself than by gaming at 2560x1600 with all the quality settings cranked all the way up in every game we tried, and that is saying quite a lot. And in reality, that's what it's all about anyway: delivering quality and performance at levels never before thought possible.

Architecturally, G80 is a gigantic leap from the previous generation of GPUs. It's the type of leap in performance that's akin to what we saw with the Radeon 9700 Pro, and given the number of 9700 Pro-like launches we've seen, they are rare. Like 9700 Pro, we are able to enable features that improve image quality well beyond the previous generation, and we are able to run games smoothly at resolutions higher than we could hope for. And, like 9700 Pro, the best is yet to come.

With developers much more acclimated to programmable shader hardware, we expect to see a faster ramp in the availability of advanced features enabled by DirectX 10 class hardware. This is more because of the performance improvements of DX10 than anything else: game developers can create just about the same effects in SM3.0 that they can with SM4.0. The difference is that DX9 performance would be so low that features won't be worth implementing. This is different from the DX8 to DX9 transition where fully programmable shaders enabled a new class of effects. This time, DX10 simply removes the speed limit and straps on afterburners. The only fly in the ointment for DirectX 10 is the requirement that users run Windows Vista. Unfortunately, that means developers are going to be stuck with supporting both DX9 and DX10 hardware in their titles for some time, unless they simply want to eliminate Windows XP users as a potential market.

Much of the feature set for G80 can be taken advantage of through OpenGL on Windows XP today. Unfortunately, OpenGL has fallen out of use in games these days, but there are still a few who cling to its clean interface and extensibility. The ability to make use of DX10 class features is here today for those who wish to do so.

That's not to say that DX9 games won't see benefits from NVIDIA's new powerhouse. Everything we've tested here today shows incredible scaling on G80 and proves that a unified architecture is the way to go forward in graphics. More complex SM3.0 code will be capable of running on G80 faster than we've been able to see on G70 and R580, and we certainly hope developers will take advantage of that and start releasing games with the option to enable unheard of detail.

The bottom line is that we've got an excellent new GPU that enables incredible levels of performance and quality. And NVIDIA is able to do this while using a reasonable amount of power for the performance gained (despite requiring two PCIe power connectors per 8800 GTX). The chip is huge in terms of transistor count, and in terms of die area. Our estimates based on the wafer shots NVIDIA provided us with indicate that the 681 million transistor G80 die is somewhere between 480 and 530 mm^2 at 90nm. This leaves NVIDIA with the possibility of a spring refresh part based on TSMC's 80nm half-node process that could enable not only better prices, but higher performance and lower power as well.

While we weren't able to overclock the shader core of our G80 parts, NVIDIA has stated that shader core overclocking is coming. While playing around with the new nTune, overclocking the core clock does impact performance, but we'll talk more about this in our retail product review to be posted in the coming days.

With G80, NVIDIA is solidly in a leadership position and now we play the waiting game for ATI's R600 to arrive. One thing is for sure, if you were thinking about building a high end gaming system this holiday season, you only need to consider one card.

Performance with AA Disabled
POST A COMMENT

111 Comments

View All Comments

  • aweigh - Friday, November 10, 2006 - link

    You can just use the program DX Tweaker to enable Triple Buffering in any D3D game and use your VSYNC with negligable performance impact. So you can play with your VSYNC, a high-res and AA as well. :) Reply
  • aweigh - Friday, November 10, 2006 - link

    I'm gonna buy an 88 specifically to use 4x4 SuperSampling in games. Why bother with MSAA with a card like that? Reply
  • DerekWilson - Friday, November 10, 2006 - link

    Supersampling can make textures blurry -- especially very detailed textures.

    And the impact will be much greater with the use of longer more detailed pixel shaders (as the shaders must be evaluated at every sub-pixel in supersample).

    I think transparency / adaptive AA are enough.

    On your previous comment, I don't think we're to the point where we can hit triple buffering, vsync, high levels of AA AND high resolution (2560x1600) without some input lag (triple buffering plus vsync with framerates less than your refresh rate can cause problems).

    If you're talking about enabling all these options on a lower resolution lcd panel, then I can definitely see that as a good use of the hardware. And it might be interesting to look at more numbers with these type of options enabled.

    Thanks for the suggestion.
    Reply
  • aweigh - Saturday, November 11, 2006 - link

    I never knew that about SuperSampling. Is it something similar to Quincux blurring? And would using a negative LOD via RivaTuner/nHancer counteract the effect?

    How about NVIDIA's Digital Sharpness setting in Color Correction? I've found a smidge of sharpening can do wonders to improve overall clarity.

    By the way, when you said Adaptive AA, were you referring to ATI cards?
    Reply
  • Unam - Friday, November 10, 2006 - link

    Derek,

    Saw your comment regarding the rationale for the test resolution, while I understand your reasoning now, it still begs the question how many of your readers have 30" LCD flat panels?
    Reply
  • DerekWilson - Friday, November 10, 2006 - link

    There might not be many out there right now, but it's still the right test platform for G80. We did test down to 1600x1200, so people do have information if they need it.

    But it speaks to who should own an 8800 GTX right now. It doesn't make sense to spend that much money on a part if you aren't going to get anything out of it with your 1280x1024 panel.

    Owners of a 2560x1600 panel will want an 8800 GTX. Owners of an 8800 GTX will want a 2560x1600 panel. Smooth framerates with the ability to enable 4xAA in every game that allowed it is reason enough. People without a 2560x1600 panel should probably wait until prices come down on the 8800 GTX or until games that are able to push the 8800 GTX harder to buy the card.
    Reply
  • Unam - Tuesday, November 14, 2006 - link

    Derek,

    A follow up to testing resolutions, the FPS numbers we see in your articles, are they maximum, minimum or average?
    Reply
  • Unam - Friday, November 10, 2006 - link

    Who the heck runs 2560x1600? At 4XAA? Come on guys, real world benchmarks please! Reply
  • DerekWilson - Friday, November 10, 2006 - link

    we did:

    1600x1200, 1920x1440, and even 1280x1024 in Oblivion
    Reply
  • dragonsqrrl - Thursday, August 25, 2011 - link

    ....lol, owned. Reply

Log in

Don't have an account? Sign up now