Is it worth going for a Radeon 7790 at this point (for £85)?

[Pemalite]

allblue said:

Please read my above post buddy, don't want you to be wasting your money. 7950 over clocked can pull well over 3 teraflops compare that to ps4 1.8 teraflops GPU.

Please take a look at this overclocking guide and benchmarks.

if you're a gamer 256 bit cards should be the minimum standard. 128 bit is a big no no.

Teraflops... Well. I could go into detail why that's a useless performance metric for games, but I won't bother. :)

Keep in mind, the rest of his system. - It's not exactly cutting edge.
Clock for clock the Phenom 2's were slower than the later model Core 2's, the Athlon 2's are even slower than that and I don't think he has overclocked the processor either.

As for the 7950 specifically, once overclocked it can match Titan in some games, it's still anywhere from 30-70% slower in other games, no amount of overclocking is going to fill that gap unfortunatly, however you shouldn't expect it to, it's also orders of magnitude cheaper.
All in all the 7850/7870 is probably going to be the better fit anyway, spend the money saved on a Corsair Hydro cooler and overclock the CPU or something.
Even then a 7850/7870 should be fine for a few years yet if you are only a 1080P gamer.

Also keep in mind the size restrictions in his case.