Need help with upgrading a friends GPU

[Danzo]

So my friend bought a system a while ago in about February ish, and he just got Battlefield 4. But unfortunately his graphics caird ain't upto scratch. He currently has a XFX 6670 and head stuck on low settings at 1080p
So,
I'm looking to recommend him a new gpu so he can get 60fps @1080 performance for less than £120?
Any help is much appreciated guys thank you,
Happy holidays.

 

[Danzo]

Ok thanks guys, GTX 660 looks like not a bad option since he's not to bothered about quality, as long as he's not getting super frame lag hah. Only problem is driver issues going from AMD to nvidia. I was also considering a 270 to upgrade from my ageing 7850.
Anyways thanks for the help

 

[Danzo]

Ok so if he goes with the nvidia, how hard is it to move from AMD to nvidia? I know there's one or two driver issues. Or could someone direct me to another post on moving from AMD to nvidia? Thanks.

 

[Danzo]

"So my friend bought a system a while ago in about February ish, and he just got Battlefield 4"

If I were you, I'd check your friend's CPU and PSU as well rather than thinking replacing the graphic card and it's job done...

Yeah checked out his Cpu it's a quad core piledriver 4.3 GHz i think? Also a 500w power supply and a micro atx gigabyte ultra durable usb 3 or something. Only 1 Pci express Lane though but three the 2 slots free for the upgrade