
Originally Posted by
fieseler
let me see if i got this right
higher Core clock = better geomatry rendering, higher ram clock = better filtering ie antialiasing
more ram = less accessing of the hdd for texture maps.
If i look at it this way, a 9800gtx 512 is much faster than a 9800gt 1gb, so i would have thought the higher clocked one would be better. Its so confusing when you dont have a direct comparison or more info from a review.
argh i hate it when u have to choose between stuff like this
Hi fieseler
You might be interested in the following article : -
How much graphics memory do you really need? - The Tech Report - Page 5
An extract :- "Doubling the onboard memory to 1GB may make for interesting marketing, but it doesn't improve performance a lick with the games and resolutions we tested. What's more, a single 8800 GT runs out of steam at 1920x1440—if not at lower resolutions—indicating that higher resolutions that might benefit from additional video memory wouldn't yield playable frame rates with single-card configs. The benefits of 1GB of video memory are also a bust for GeForce 8800 GT SLI configurations, at least at resolutions up to 1920x1440. However, we've seen the 8800 GT 512MB in SLI deliver playable frame rates at 2650x1600 in
Quake Wars and
Episode 2, so a 1GB SLI config may yield performance benefits there. We've also observed the performance of a 512MB SLI config tank spectacularly in
Call of Duty 4 when moving to 2560x1600, suggesting that additional video memory could be of help there, as well.
As for the 256MB variant of the GeForce 8800 GT, well, there's little hope. The 256MB card fared well enough in
Quake Wars, but it couldn't keep up at even 1280x1024 in
CoD 4 and started to drop off at 1600x1200 in
Episode 2. And
Crysis? Forget about it.
Given the relatively minor price gap between 256MB and 512MB versions of the GeForce 8800 GT, we see little reason to settle for the 256MB card. You really do need 512MB of memory to make the most of today's games, especially if you want to crank up the eye candy. That said, today's games aren't so demanding that they'll make good use of 1GB of video memory, at least not with the GeForce 8800 GT. Not even
Crysis saw a meaningful performance increase with the 1GB cards, suggesting that tomorrow's games may do just fine with 512MB, as well."
I think the conclusion was that although it doesn't do much the additional memory couldn't hurt and it was cheap enough anyway.
Norm