Try - Tom's -
http://www.tomshardware.com/reviews/budget-gaming-pc,3854.html
or
CPU: Intel Pentium G3258 3.2GHz Dual-Core Processor ($69.99 @ Amazon)
CPU Cooler: Cooler Master Hyper 212 EVO 82.9 CFM Sleeve Bearing CPU Cooler ($24.99 @ Newegg)
Motherboard: MSI H81M-P33 Micro ATX LGA1150 Motherboard ($48.37 @ OutletPC)
Memory: G.Skill Ripjaws X Series 4GB (2 x 2GB) DDR3-1600 Memory ($46.99 @ Newegg)
Storage: Seagate Barracuda 1TB 3.5" 7200RPM Internal Hard Drive ($52.91 @ OutletPC)
Video Card: Gigabyte Radeon R7 260X 1GB Video Card ($119.98 @ SuperBiiz)
Case: Cooler Master Elite 311 (Silver) ATX Mid Tower Case ($36.99 @ Mwave)
Power Supply: SeaSonic S12II 520W 80+ Bronze Certified ATX Power Supply ($65.98 @ SuperBiiz)
Total: $466.20
Plus OS and peripherals.
Features overclocking cpu. See
http://www.tomshardware.com/reviews/pentium-g3258-b81-cheap-overclocking,3888.html