Which one is a better buy for $200? I know the 480 is faster but is it enough to justify the heat and loudness over the 560 ti? Again its the 384 version, not the 448. Also the system that the card will be in has a Corsair builder series 600w powersupply and an i3 540 cpu.
The 480 is actually about $10-20 cheaper. I want to get it but I am nervous about the psu requirements. Nvidia says the minimum for that card is 600w, which is what the system has. Not including the video card, the computer has pretty low power requirements (73W processor, one hardrive, nothing OC'd), so a GTX 480 would probably run yes?
It will most likely be OK.
They overrate the requirements. Some cheap 600watt power supply will only put out 450watt continous and 600watt for a few milliseconds. Then they shut down or blow.
What power supply do you have and we can give a definate answer.
You wil be fine. http://www.techpowerup.com/reviews/AMD/HD_7850_HD_7870/...
The chart shows power draw for many different cards. Running Furmark (maximum) the card will ever draw is 320 watt.
Your power supply has 480 watts on the 12v line continous output.
With your system you will probably never go over 80% of its output.