Video cards w/ low VRAM, or those that are integrated and share PC RAM (slow as hell)... you should get some performance increase settings on the "16 bit color 16 bit depth with 1x multisampling". Renderings take up less memory using this method, making for faster reads/writes... especially if your card shares it's memory w/ the PCs RAM. I used to use my wife's laptop as one of my "boxes", and it had an IGP (integrated graphics processor) that used it's DDR for VRAM. Switching to this setting upped my average fps from 9-12 to 18-24. You may notice some slight color shifting (since it's rendering in less colors); however, if it's not your "main" box (which you look at 70%+ of the time)... does it really matter?