Grape Flavor wrote:
So 32MB would give me the best performance then? For what it's worth, this system is driving mid-2000s games on a 1920x1200 display, so that 1GB of VRAM might get more use than you might think.
Naw, do the math. As a rough estimate:
1920 x 1200 = 2,304,000 pixels
2,304,000 x 32bpp = 73,728,000 bits per frame
73,728,000 bits /8 bits per Byte / 1024 bytes per kB /1024 kB per MB = 8.79 MB per frame
Now crank up the triple buffering and everything else, and throw in the wireframes and other miscellaneous stuff the GPU is handling, and your video memory requirement is still pretty small, under 100MB most likely. Most of the other video memory, if even used in its entirety, will be storing textures. And if it is used up with textures, you surely do not want to hobble a system with just 768MB of RAM by dedicating some of that
to video work. As the Cappy says, it will just bog down the CPU, which in turn will force the system to shift more of the routine memory work to swap buffer on the hard disk. Totally counterproductive.