And I cannot upgrade it so I just want to upgrade my GPU and not want a bottleneck. I need you guys to help me find the best GPU that will work with this system and a cheap PSU that I will need to make it work. Thanks.
Also, I want a PSU where I can overclock both my CPU and GPU by a bit if needed.
I live in Canada, so I would prefer if newegg.ca was used, thanks.
gpu wise, im not to sure but my old 5000+ ran a 9800gt fine not knowing much, i would say maybe a 450ts/550ti/7750/7770.
not to sure if any of those gpus would cause a major bottleneck but i'd assume not.
Newegg usually has a rebate on a corsair 430 watt psu that makes it down to $25ish.
the psu would run my setup of a 6 core and 6770, in sig.
it should, leave room for an oc, if the psu can run my computer with an oc then i think it can a athlon 5600+, i dont expect a oc'd dual core to use more power than an oc'd six core, and a new 7xxx series radeon card uses less power than my 6770.
im not to sure on the bottleneck and best for ur cpu, but i know that its only around $120 and my guess that it wont bottleneck, maybe try posting in the video card section or wait for one here.
the 6850 would overall be better but i have no clue as to how bad it'll be for a bottleneck, but yes they are compatible with the motherboard the only issue may be length with a prebuilt hp case, and length from the front of the card to where it mounts to the end of the card and where it reaches the hdd trays.
Interesting.. I used to have almost the exact same combination. I went from an Athlon 5600+/9800GTX to an Athlon II 645. My 3DMark 06 score improved by over 20%, and general gameplay was greatly improved, especially on RTS titles. I've since switched to an HD6850, and it has my Athlon II working hard to keep up.
Conclusion: my 5600+ was bottlenecking the 9800GTX in some titles, so it would have been much worse with the 6850. I suspect the 6580 is a bridge too far for that CPU, but it depends on what you play, the resolution, and the game quality settings. A bit of tweaking to tone down CPU-specific settings such as physics can be a big help.