Which of these video cards is better for playing games on Vista?

I don't know which is better.. having less ddr3 memory or more ddr2 for better FPS at max settings.



- Leadtek PX8600GT 256MB Standard GeForce 8600GT 256MB 128-bit GDDR3 PCI Express x16 SLI Supported Video Card



http://www.newegg.com/Product/Product.as…



Or...



XFX PVT84JYAJG GeForce 8600GT 512MB 128-bit GDDR2 PCI Express x16 SLI Supported Video Card



http://www.newegg.com/Product/Product.as…



Thanks!!!|||That depends on the resolution you intend to utilise. More RAM means better performance on higher resolutions, but then it is only GDDR2, something which is now somewhat old for video cards. I've got a Galaxy 8600GT running on 256MB GDDR3. Good to go for most games.|||the XFX PVT84JYAJG GeForce 8600GT 512MB 128-bit GDDR2 PCI Express x16 SLI Supported Video Card