Which of these cards would perform best Im useing a small form factor computer with a 275w psu For light gaming I have 8GB of ram 250gb samsung evo a intel xeon x3230 2.66 quad core.
The 7750 is MUCH faster than the 640. With the performance you'll get out of this budget, 1GB of VRAM should be sufficient for light gaming. You'll also be around 175w at peak load power draw, so 275w should be sufficient.
The HD 7750 will be a little faster in most games and the extra 1GB of VRAM that the 640 has, may not help much with that class of card anyway. So I'd opt for the HD 7750.
You can get GTX 750 Ti which is way better than HD 7750
The 7750 is MUCH faster than the 640. With the performance you'll get out of this budget, 1GB of VRAM should be sufficient for light gaming. You'll also be around 175w at peak load power draw, so 275w should be sufficient.
The HD 7750 will be a little faster in most games and the extra 1GB of VRAM that the 640 has, may not help much with that class of card anyway. So I'd opt for the HD 7750.
You can get GTX 750 Ti which is way better than HD 7750
I would get that but I don't know if that card would fit I have the extra slot for the dual slot card but I have a dimension 9200c case so Idk if it would fit or not