pick what you think is thebest bang for buck with you personally. Unless the e6300 will run more than twice it's stock performance then you may be better off with a 9xxx CPU. I'm assuming at this point you have an AM2 motherboard that will take the AMD Quads. You'll probably spend about the same either way. I think a 9550 is about GBP £100 at the moment, and at stock it's roughly twice the speed of a stock e6300.
Tq for customisbetter and beaker opinion i really appriciate it from bottom of my heart....
Hurm lets say i got comp with intel e6300 with lame intel 946gzis board(im thinking of to upgrade the motherboard to(asus p5qse cause i use single 280gtx gpu.. cant afford for sli..) and processor cooler(i prefer ac freezer extreme)
and i got comp with amd x2 5200 @ 2.9ghz with asus m3a.. cause weather at malaysia so hot then i cant oc to 3.0+++
lets say that i wanna upgrade the intel one and compare both performances... in my own opinion intel will beat the x2 5200 at 2.6ghz clock i think...but im in dilema cause rather than upgrading the intel, i should bought amd phenom but if i bought the cpu i waist my old x2 cpu... and phenom quad core got many problems i heard.. in my thought is