Plan on CrossFiring 2 MSI Radeon R9 and overclocking a i5 4690K. What's the cheapest PSU I can get to do that?

thearkhamknight

Reputable
Dec 26, 2015
3
0
4,510
The question is in the title. The rest of my build goes like:PCPartPicker part list / Price breakdown by merchant

CPU: Intel Core i5-4690K 3.5GHz Quad-Core Processor (£167.95 @ Amazon UK)
CPU Cooler: Cooler Master Hyper 212 EVO 82.9 CFM Sleeve Bearing CPU Cooler (£24.98 @ Novatech)
Motherboard: ASRock Z97 PRO4 ATX LGA1150 Motherboard (£93.30 @ More Computers)
Memory: Kingston HyperX Fury Black 16GB (2 x 8GB) DDR3-1866 Memory (£64.03 @ More Computers)
Storage: Seagate Barracuda 2TB 3.5" 7200RPM Internal Hard Drive (£52.66 @ Aria PC)
Video Card: MSI Radeon R9 390 8GB Video Card (£259.99 @ Ebuyer)
Case: Corsair 200R ATX Mid Tower Case (£49.98 @ Aria PC)
Total: £712.89
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2015-12-27 11:41 GMT+0000
I need to keep that as low as possible, as I'm already slightly overbudget. Thanks!