8800GTS is a nice card but I feel it uses up quite a lot of power, especially when playing video games, although I'm not playing games with high recommended min requirements and I don't play every day for a lot of hours like some of the other guys do. HD3650 seems to be the the DDR3 version of 8500GT (without any overclocking and more stream processors). But I'd miss out on physX capabilities which Age of Empires can use.
I just want respectable performance without having a electricity guzzler in my computer, even when I am not playing video games
I have an AMD64 athlon single core processor and I read that higher end graphics card not good with single core processors because single core processors not fast enough to keep up with the speed of the graphics card.
Also, I have a Compaq SR1630NX computer that I upgraded as you see my sig info and I am wondering if 8800GTS can fit into my computer comfortably, as people said it's pretty long!