I was told 750W is good enough, but someone said I should get an 800W. What's your thoughts on this?
Hello, 750w is more than enough for only 1 Titan.
Please head this get a 780 rather than a titan. There is only like a 5 frame difference and your saving 350 that you can use towards something that you may be cutting back on like your power supply
Hey, he might need the titan for the memory size, all depends on what he does with his pc.
If I want just high performance gaming, I assume the 780 will be fine. 3gb is the minimum games will use. I noticed that Batman Arkham Asylum , which uses over 2gb of the memory, but I'm not playing that.
It's possible but if that's not the case than a 780 is a so much better value
650w would do, but 750w gives you room to expand and keeps you within the optimal power draw of 1/2 - 2/3 the rated wattage.