Help to Build PC under £300

[ostapenko]

Hello i want to build new pc from the current one i have. My current Pc stats is- Case : Vantage Blue Midi Tower Case + 4 x 120mm Fans
Power Supply : 500 Watt With Power Cable Supplied
Motherboard : Gigabyte F2A68HM-HD2 (HDMI & USB3 Support)
CPU : AMD FM2 A8 6600K APU Quad Core CPU 3.9Ghz (turbo 4.2Ghz) Black Edition
6Gb/s Hard Drive
Memory : 16GB DDR3 1600mhz Memory
Graphics Card : ATI 8570D APU Graphics
Optical Drive : 24 Speed Dual Layer DVD Writer
So i want my pc to run gt5 any recomendation what should i upgrade in my pc?

 

[fliger5]

Upgrade CPU and GPU. Probably not possible to upgrade both with that budget so you should first buy a new GPU like the GTX 970.

 

[eatmypie]

I'm just assuming your psu isn't to great, so I would just upgrade the power supply and the video card to
PCPartPicker part list: http://uk.pcpartpicker.com/p/thc2TW

Price breakdown by merchant: http://uk.pcpartpicker.com/p/thc2TW/by_merchant/

Video Card: Gigabyte GeForce GTX 970 4GB WINDFORCE 3X Video Card (£242.99 @ Aria PC)
Power Supply: XFX 550W 80+ Bronze Certified ATX Power Supply (£46.18 @ CCL Computers)
Total: £289.17
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2015-08-01 12:10 BST+0100

You will be bottle necked quite a bit, but in the future you can upgrade your processor and motherboard to something much better and get the full potential of your system.