http://www.amazon.co.uk/Sapphire-Graphics-PCI-E-GDDR5-DVI-I/dp/B00YXSL3O2/ref=sr_1_4?ie=UTF8&qid=1439768306&sr=8-4&keywords=r9+380
@Ronnie76 sugested R9 280x, its also great, but in the UK is more expensive then 150 pounds.
The "most expensive" GPU is not the best future proofed card, most of the times is better to buy some mid range and sell it. But yeah, its a nice card.
For the price point they are good, but dont expect some amazing sound, 30 euros for a wireless headset its really little.. my one costed 140 euros and I already thought that I should have spend more.
"powerful compute", for what?
Edfit: Oh just gaming, then dont need the 8 core, get some 6700K like chugle said, and dont get Titan X, get 2 GTX 980 Ti, and quadro for gaming? NO