NVIDIA's GeForce 7800 GTX Hits The Ground Running
by Derek Wilson on June 22, 2005 9:00 AM EST- Posted in
- GPUs
Half Life 2 Performance
Half-Life 2 is arguably one of the best looking games currently available. We mentioned earlier that it stresses pixel processing power more than memory bandwidth on the graphics card, and we see that here. While enabling AA/AF does cause a performance loss at these high resolutions, it isn't truly severe until we reach 2048x1536. Assuming a more common resolution of 1600x1200 - not everyone has a monitor with support for higher resolutions - the single 7800GTX is actually faster than 6800U SLI. In fact, the only time we see the 6800 SLI setup win out is when we run 4xAA/8xAF at 2048x1536, and then it's only by 3%. Also worth noting is that while SLI helps out the 6800 series quite a bit (provided you have a fast CPU and are running a high resolution), the 7800GTX is clearly running into CPU limitations. Our FX-55 can't push any of the cards past the 142 FPS mark regardless of resolution.ATI has done well in HL2 since its release, and that trend continues. The SLI configurations (other than the 6600GT) all surpass the performance of the X850XTPE, but it does come out ahead of the 6800U in a single card match - it's as much as 42% faster when we look at the 1600x1200 AA/AF scores. The 7800GTX, of course, manages to beat it quite easily. The 540 MHz core clock of the XTPE is quite impressive in the pixel shader heavy HL2, but with the additional pipelines and improved MADD functionality, the 7800GTX chews up HL2 rocks and spits out Combine gravel.
One thing that isn't immediately clear is why the 6800U cards have difficulties supporting the 2048x1536 resolution in some games. Performance drops by almost half when switching from 1600x1200 to 2048x1536, so either there's a driver problem or the 6800U simply doesn't do well with the demands of HL2 at such resolutions. There are 63% more pixels at 2048x1536 compared to 1600x1200, so it's rather shocking to see a performance decrease larger than this amount. We would venture to guess that it's a matter of priorities: the number of people that actually run 2048x1536 resolution in games is very small in comparison to the total number of gamers, and with most cards only providing a 60Hz refresh rate at that resolution, many don't worry too much about gaming performance.
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mrdeez - Thursday, June 23, 2005 - link
also:maybe gaming in hi def......ona big screenmrdeez - Thursday, June 23, 2005 - link
#114Dude just stfu......we are here to comment what we want and say it freely......minus threats and name calling....as i said before this card is not for gamers...maybe elite gamers that have a monitor that does these resolutions but most gamers i know have went to lcd and i have yet to see any lcd[im sure there are some]do these resolutions so this card really is a card for crt elite gamers......lol with those resolutions on a 21 inch monitor you would need binoculars as glasses to play the game....the tanks on bf2 would be ant like small....
bob661 - Thursday, June 23, 2005 - link
#114I am SO glad that Anand remains in business despite all the bitches that are in these comment sections.
Locut0s - Thursday, June 23, 2005 - link
Those who are complaining that they should have reviewed at lower resolutions should think for a minute. First of all you are talking about a 600 buck card, most people who have that kind of money to spend on a card also have a monitor that is capable of 1600x1200 or better. Also benchmarking at any lower resolution on a card like this in todays games is almost pointless as you are almost entirely CPU bound at those resolutions. Do you really want to see page after page of 1024x768 charts that differ by only 4-5 percent at the most?Also give the editors a break when it comes to writing these articles. As others have said this is not a subscription site and given the number of visitors and the quality of the articles I'm amazed, and gratified, that the people of Anandtech keep putting out article after long article despite all the winning that goes on over spelling mistakes and graph errors that more often than not are corrected within a few hours.
SDA - Thursday, June 23, 2005 - link
That's a really great comparison, #112, especially seeing as how we pay for AnandTech and any problems with it could leave us stranded in the middle of nowhere. And so witty, too!Jarred, ah, thanks.
Questar - Thursday, June 23, 2005 - link
"Our Web Editor is on vacation and we are all doing our own HTML and editing for the next 10 days. In our usual process, the article goes from an Editor to the Web Editor who codes the article, checks the grammar, and checks for obvious content errors. Those steps are not in the loop right now."" do know Derek as a very conscientious Editor and I would ask that you please give him, and the rest of us, a little slack this next week and a half"
Dear Mr. Fink,
I am sorry to hear about the problems you have had with your vehicle breakdowns. You see, our quality inspector was on vacation that week, so we just shipped our vehicles strait off the assembly line. Please cut us a little slack, as we usually build much better vehicles.
Sincerly,
Buncha Crap,
CEO
Crappy Moters Inc.
frisbfreek - Thursday, June 23, 2005 - link
my question is how did they do hi res 2048x1536 when the card is only single-link DVI? Shouldn't either an analog connection or dual-link be necessary?yacoub - Thursday, June 23, 2005 - link
#108 - what do you want, a $2000 CPU to go with your $1200 in GPUs? =PCtK - Thursday, June 23, 2005 - link
so dual display is still not available with dual 7800s?!?!?!?!?smn198 - Thursday, June 23, 2005 - link
Come on Intel & AMD. Keep up!