Gam3r01 :
Depends on your budget and current hardware.
Ideally, you would want to make a switch to an intel platform to something like an i3 7100 or i5 7500.
Operating System
Windows 7 Ultimate 64-bit SP1
CPU
AMD FX-4100 57 °C
Zambezi 32nm Technology
RAM
8.00GB Dual-Channel DDR3 @ 666MHz (9-9-9-24)
Motherboard
ASUSTeK Computer INC. M5A88-V EVO (AM3R2) 30 °C
Graphics
HP L2245w (1680x1050@60Hz)
1024MB ATI AMD Radeon HD 5700 Series (ATI AIB) 41 °C