I run with a X2 4400 (2GB DDR) and a 1900XTX with Accelero X2 on dell 20.1 inch LCD 1600x1200 (stock clocks for everything) and in Oblivion (Max settings with HDR+AA) I run at 30-40FPS (it dips into the low 20's sometimes) so I think you would need something faster than the 1900XTX for the res. you play at.
I will tell you this I have owned both the 7900GTX and my 1900XTX and the ATI is the much better choice for Oblivion and IQ in general.
just wanted to add that 1900xtx runs about 5C warmer than the 7900GTX under load (in my system) and it does use more power so make sure you have a good pwr supply.
I will tell you this I have owned both the 7900GTX and my 1900XTX and the ATI is the much better choice for Oblivion and IQ in general.
just wanted to add that 1900xtx runs about 5C warmer than the 7900GTX under load (in my system) and it does use more power so make sure you have a good pwr supply.