I currently have an Asus Radeon HD4670 512MB and am considering upgrading to an MSI HD7750 2GB version. Tom's Hardware says it's the best card in the price range (around £70). I'm a student so a little tight for cash, but I like to game and am reaching the point where my card doesn't really cut it.
I'm about to start my final year project (I do Computer Science and managed to convince my project leader to let me make a game yay!), which I would also like to be able to use OpenGL 4.0 and maybe DX11 for (for practice mainly).
So basically what I'm asking is whether it's worth the upgrade. Tom's Hardware says it's a few tiers above mine on their most recent hierachy chart (can't post a link because my first post), but looking on another website, hwcompare, it seems that while the memory and pixel bandwidths are better by far, the texel rate isn't so great. Not sure if this is a mistake on the website, a weakness of the 7750, or a great strength of the 4670.
Anyway, here are some of my other system specs:
Asus M2V Motherboard
AMD Athlon X2 6000+ (3.0Ghz)
6GB DDR2-800 RAM
OCZ Solid 3 120GB SSD
Windows 7 Professional 64-bit
Any advice, including suggestions of other cards for around the same price, would be much appreciated.