I am looking to upgrade my AGP graphics card (Nvidia 7600GT) which I bought many years ago, to something that is better and compatible with my system as it is. I don't want to change the motherboard and do a major overhaul of everything, I would just like to get a decent graphics card in order to play World of Warcraft at better graphics (ideally Ultra). I don't want to pay more than £70-ish. I have seen some cards like the 4670 etc, which are around £100. Is there something which will give me a huge increase in performance in the game, and be a little cheaper?
Currently, my spec is this:
CPU: Intel Pentium 4, 3.2 GHz
RAM: 4GB DDR 333
OS: 32 bit Windows 7
GPU: AGP Nvidia Geforce 7600GT
What would you advise I go for? I built this PC myself quite a few years ago, and I haven't really upgraded it, except to add more memory (from 2 to 4).
You know, you will not be able to play World of Warcraft on ultra with that PC. Your CPU is below your system requirements.
As for AGP cards - your options are really limited. HD 3850/HD 4670 would probably be the best cards you can get. However, AGP cards are very overpriced today, for the same price - PCIe cards are much more powerful. You'll also be lucky if you can actually find an AGP card.
In addition to what Sunius said, the slow AGP interface will severely limit any semi-modern graphics card. I would recommend you
wait and save about 300£-ish, salvage what you can from your old pc (possibly case, power supply, HDD, optical storage, card readers, add-in cards, etc.) and upgrade.
With 300£, you could build quite a decent system with an i3 and a 7770, for example.
At this stage, a new system is what I'd recommend, but that's not what you're asking. AGP cards are almost extinct with the newer PCIe standard. Honestly, adding a new graphics card will be like putting it on life support. It'll last, but not that long.