I have recently purchased/built a gaming PC that destroys the new generation consoles hands down.
Here are the specs:
AMD FX-8320 (Piledriver) Clocked to 4.5Ghz @ 109.56GBP
Gigabyte GA-970A-UD3P AMD Socket AM3+ Motherboard @ 66.90GBP
G.Skill RipJawsX 8Gb DDR3 @ 669.98GBP
Sapphire Radeon R9 280X Dual-X OC AMD Graphics Card - 3GB @ 224.99GBP
750W Corsair Builder Series 750CX 80PLUS Bronze Power Supply @ 68.60
120GB Samsung 840 EVO series 2.5" SATA 6Gb/s SSD @ 66.30GBP
Corsair H80i Liquid Cooling
You can pick your own ATX case.
This runs battlefield 4 in ultra settings easy! if you are going for the same cooler overclocked to 4.5Ghz if your lucky. I've not even touched my PSU for extra power.
This is the best budget PC money can buy and would last years of gaming, and for those Intel fanboys, screw you lol