Originally posted by: nosfe
it's not forcing it to use more memory, the reason why cards with more memory then they need tend to underperform is because they use slower memory to keep costs down(either higher latency or lower frequency)
No I mean people think that just because you can fit stuff in memory means it automatically runs faster or fast enough. My dad thinks like this. My computer is slow as shit? Don't worry I'll add more memory. Forget quad core, I'll just add more memory.
Having lots of memory does not mean the card is faster. If you can find a game that uses more than 1gb of dedicated video memory, I'll bet my balls that a Radeon 4870 will not be able to run it.
I'm comparing this to the 512mb FX5200 because it's basically the same thing. At the time that was released, the most graphics intense game was Doom 3 which used about 500mb of video memory because the
Ultra setting used uncompressed textures. What do you think happens if you try running Doom 3 on an FX5200, simply because it has enough memory? It will still run like garbage because it doesn't have the processing power to
use all of those uncompressed textures loaded into memory.