Geforce 7800 is correct. But your rest info looks pretty wrong. Go to My computer-> Properties and tell us what kind of speed/model your processor is and if it is dual core or quad core.
Also tell us which games you are trying to play.
Okay here's some better info. My computor is a Cyberpower, recommended for gaming.
Intel Core 2 Quad Q8400(2.66GHz).
Processor Main Features = 64 bit Quad-Core Processor
Cache Per Processor 4MB L2 Cache
Memory 8GB (2x2GB) DDR2 800
Hard Drive 500GB SATA-II 3.0Gb/s 7200RPM HDD
I hope that helps. I'm trying to run Need for Speed two hot pursuit.
What game(s) are you playing? Some are very intensive and probably wouldn't work full speed on your CPU without some overclocking.
Other games should run perfectly fine on your system though. Unfortunately since the 7800 isn't a directX10 card it's not quite as fast and some games may have minor graphic glitches.
Right now I'm just running Need for speed hot pursuit but I would like to try Kingdom Hearts as well.
So kingdom hearts is slow too? Post which PCSX2 and plugins you use and their settings