i have been looking on ebay and found alot of good quad core cpu's under 50 usd but i am not sure which is the best price to performance (i will use it on a asrock g41c vs motherboard that i have just until i can save for an all new pc and i have 600w psu and and 8gb 4*2 ddr3 1333hz or maybe 1600hz or more and a r9 280x gpu that i know it will bottelneck but i will try)