Upgrading graphics card
I'm thinking about upgrading my graphics card - currently have a GTS8800 320. Other relevant specs:
Core 2 Duo E6700
Gigabyte P35-DS3R Motherboard
2 GB Gskill RAM (will probably upgrade this to 4GB, the max for my motherboard)
Corsair 520 watt power supply
I'm thinking the GTX560 (non Ti version) would be right for me as I'd like a solid boost in performance but am not looking to break the bank. I'm wondering if my power supply is enough to support this card? The specs say it needs 450 so I assume I'm fine, but just making sure. And is it worth going for the 2GB version, or is 1GB plenty? Back when I got my GTS8800 I opted for the 320 MB version rather than 512, and started to regret it right away. Also, will my processor put a severe bottleneck on this card?