Whats the real difference? The HD3870 seems to have better stats and is cheaper, so if you're going with one card only (no SLI or Crossfire), which is the better choice ?
Newegg.com - ASUS EAH3870/G/HTDI/512M Radeon HD 3870 512MB 256-bit GDDR4 PCI Express 2.0 HDCP Ready CrossFire Supported Video Card - Retail
VS
Newegg.com - EVGA 512-P3-N802-A3 GeForce 8800GT Superclocked 512MB 256-bit GDDR3 PCI Express 2.0 HDCP Ready SLI Supported Video Card - Retail
Newegg.com - ASUS EAH3870/G/HTDI/512M Radeon HD 3870 512MB 256-bit GDDR4 PCI Express 2.0 HDCP Ready CrossFire Supported Video Card - Retail
VS
Newegg.com - EVGA 512-P3-N802-A3 GeForce 8800GT Superclocked 512MB 256-bit GDDR3 PCI Express 2.0 HDCP Ready SLI Supported Video Card - Retail