Nvidia Geforce 5900ZT to 7600GT?
I'm a humble consumer who is a little confused by all the jargon surrounding graphics cards, and I'm thinking of upgrading soon.
I currently have a Nvidia Geforce 5900ZT (which cost around £80 / $150), which runs FarCry, Doom 3 etc all pretty well. Things just get a little jerky in games like Oblivion or Hitman Blood Money occasionally though, and I'm hoping to give things a boost. My system is a 2.8GHz Pentium w/ 2GB DDR RAM.
I'm looking to spend no more than £140 (about $250) on a new card.
Can anyone help with the following queries?
1. Is the Geforce 7600GT a good purchase - i.e. will I get good performance and longevity on the Oblivion level etc?
2. What's the difference between AGP and PCI? Is one better than the other? Will my motherboard limit me to one kind? (I think my current 5900ZT card is AGP.)
3. Whats the difference between different brands of Geforce 7600GT - e.g. I just saw ones by Asustek, Gainward, Gigabyte, MSI, etc, but they are all called 7600GT. There is a small price variation between them but I'm not sure what the real difference is here?
Any help or advice on the above would be much appreciated, as well as any other recommendations or suggestions.