Upgrading graphics cards, need help so my comp doesn't blow up

[ConnorMcG]

My current system:

OS: Windows 8
Processor: AMD FX(tm)-8120 Eight-Core Processor (3.10 GHz)
RAM: 8.00 GB
GTX: Nvidia GTX 650


Upgrading to a Nvidia GTX 660 Ti or a 670? not sure


What PSU will I need? Anything else so my computer doesn't explode?

[lewis188]

700-750W? https://www.amazon.co.uk/Corsair-CX75...&keywords=750w
There's a nice make if you're willing to pay £67. Should be £97 so you're best of getting it now.

[ConnorMcG]

700-750W? https://www.amazon.co.uk/Corsair-CX75...&keywords=750w
There's a nice make if you're willing to pay £67.

Thanks for the suggestions, my main games are MMOs and crap also League of legends and WarZ and my current system laggs on them. Also running 2 screens.

[Domokun_index]

A 650/700W PSU will suffice. However, try to get a bronze/silver/gold one as they're efficient and generally have longer life-spans.
Also, a 670 is fantastic. Grab the FTW edition too whilst you're at it, same price (or like $5 extra) for basically a 670 Ti (don't exist by the way).
What kind of cooling you got going on?

[ConnorMcG]

A 650/700W PSU will suffice. However, try to get a bronze/silver/gold one as they're efficient and generally have longer life-spans.
Also, a 670 is fantastic. Grab the FTW edition too whilst you're at it, same price (or like $5 extra) for basically a 670 Ti (don't exist by the way).
What kind of cooling you got going on?

Basic fans atm, I don't really know any details my PC was built for me ill open it up later

[Domokun_index]

Basic fans atm, I don't really know any details my PC was built for me ill open it up later

You will want to upgrade your cooling system to a ~1000rpm fans.