Hello, I've been developing some assets and maps for games using Unreal and Source engine, this task sometimes freezes out my PC (specially in compiling/building stage) this is nothing that destroys my projects but it's just a bit annoying and time wasting.

So I'm asking you guys which CPU and motherboard is recommended to me? Price should be less than $300.

My current pc specs->

os: Windows 7 professional 64 bit
ram: 2x 4gb
cpu: AMD A4 3400 APU with radeon HD Graphics 2.70 ghz
motherboard PEGATRON COORPORATION 2ACF



thx for replying