mainly cause i have a spare graphics card sittin around (7300 LE) and wantin to put it into this, would this power supply be sutiable for this? the 5v on the new one is lower but im aware that its a 80 plus
No. In a modern computer, the 12 volt rail does all of the heavy lifting (CPU and GPU). The 5 volt output pretty much powers just the motherboard and drive logic. The 3.3 volt output powers the memory.