Which PC for Gaming?

[Jamdude]

I'm building a PC for my brother that will be used for gaming and YouTube.  He already has a 1080p monitor, peripherals and an OS.  £520 is an absolute max for the price of the PC.  Could you make any improvements?  

 

AMD: http://uk.pcpartpicker.com/user/Jamdude/saved/JgBG3C

 

Intel: http://uk.pcpartpicker.com/user/Jamdude/saved/Gh3gXL

 

EDIT:  I'll be putting my old 7870 in this rig.

[AlwaysFSX]

If he's gaming you're going to want to put a gpu in the system...

[ForsakenLive]

What about the graphics card?

[AlwaysFSX]

PCPartPicker part list / Price breakdown by merchant

CPU: AMD FX-6300 3.5GHz 6-Core Processor  (£73.10 @ Amazon UK)
CPU Cooler: Cooler Master Hyper 212 EVO 82.9 CFM Sleeve Bearing CPU Cooler  (£24.91 @ Amazon UK)
Motherboard: Gigabyte GA-990FXA-UD3 ATX AM3+ Motherboard  (£89.00 @ Amazon UK)
Memory: Corsair Vengeance 8GB (2 x 4GB) DDR3-1600 Memory  (£59.98 @ Amazon UK)
Storage: Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive  (£35.99 @ Aria PC)
Video Card: MSI Radeon R9 270 2GB TWIN FROZR Video Card  (£127.52 @ Scan.co.uk)
Case: Corsair Graphite Series 230T Black ATX Mid Tower Case  (£53.69 @ CCL Computers)
Power Supply: Corsair CX 600W 80+ Bronze Certified Semi-Modular ATX Power Supply  (£50.93 @ Amazon UK)
Total: £515.12
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2014-08-10 21:35 BST+0100

[The Robot]

A 4690K perhaps?

[Jamdude]

If he's gaming you're going to want to put a gpu in the system...

What about the graphics card?

Damn, sorry guys I totally forgot to mention I'm giving him my old 7870.

 

A 4690K perhaps?

It's exactly the same as the 4670K but with a 100MHz higher clock.