If your PSU is crappy I would say don't go above a Radeon 4550 or maybe an NVIDIA 9500GT. If it's a decent unit then perhaps you could get away with a 4670 so long as you don't run furmark on it ^_^.
If your PSU is crappy I would say don't go above a Radeon 4550 or maybe an NVIDIA 9500GT. If it's a decent unit then perhaps you could get away with a 4670 so long as you don't run furmark on it ^_^.
Pretty sure a 9500 minimum requirement is 350w so I wouldn't recommend that either.
9400, GT 220 and any lower are 300w minimum or less, not sure about lower ATI cards.