Anyone recommend a good budget graphics card around the £100 mark that's capable of playing Black Ops/GTA 4 at maximum resolution, not in slow motion?

At present have an ATI Radeon 4600 series and it's sooooo slowwwww.

 

Hi matey have look for ATi HD5770 or HD5830 these cards are priced well.
Or you can have look for GTX460 which are in same price range

 

GTA 4 needs a pretty beefy CPU to be honest.

 

Preferably Quad core,good budget Cpu are AMD Athlon II x4 640 or Intel i3-540.

 

Mine has an AMD Phenom II X4 2.8Ghz, should be beefy enough with a good card.

 

You will be OK with this CPU and good GPU(above is comparison of cards,mine favourite is HD5770,5830 or GTX460).
These cards support DX11,great if you are on W7

 

Check your PSU is also up to the job.

 

I think will need just 450-550W PSU for this GPU's and PSU are really cheap(OCZ PSU 650W for £59)