Re: 6600GT or 6800GS ?
The 6800GS should be significantly faster in newer games. Plus they seem to overclock extremely well, so if you do that, you'll get another big boost. As far as the memory bandwidth, that makes a huge difference. As far as I know, it has around double the bandwidth of the 6600GT, which makes it MUCH better at higher resolutions or with antialiasing. Plus, they always have 256Mb of RAM which also makes it possible to play games more smoothly with higher detail settings without any stuttering or large framerate drops.
If you have a choice between the two, deffinitely get the 6800GS. I wouldnt honestly recommend that anyone get anything slower than that if they want decent gaming performance in new games.
__________________ ---- Primary Rig ---- CoolerMaster 690 II Advance - Gigabyte GA-EP45-UD3P - Intel Core 2 Quad Q9550 @ 4.0Ghz + Thermalright Ultra 120 Extreme
6GB DDR2 @ 942Mhz 5-5-5-20 1.9v (2x1Gb Wintec AMPX PC2-8500 & 2x2Gb G.Skill PC2-6400) - EVGA Geforce GTX 470 @ 750/1500/1850 (1.050v)
Sparkle Geforce GTS 250 1Gb Low-Profile (Physx) - Crucial RealSSD C300 64Gb SSD - Seagate 7200.12 500Gb SATA - Seagate 7200.10 320Gb SATA
ASUS VW266H 25.5" LCD - OCZ GameXStream 700W PSU - ASUS Xonar DX - Logitech Z-5500 5.1 Surround - Windows 7 Professional x64
---- HTPC ---- Asus M3A78-EM 780G - AMD Athlon X2 5050e 45W @ 2.6Ghz - 2x2GB Kingston PC2-6400 DDR2 - Sparkle 350W PSU
Seagate 7200.10 320Gb SATA - Seagate 7200.10 250Gb SATA - Athenatech A100BB.350 MicroATX Desktop - Creative X-Fi XtremeMusic