tbh if you're going for a GDDR
2 4
550, you may as well save a couple of quid and get a 4350 instead - the GPU core is absolutely identical - 600MHz / 80 shaders. The only difference is that the 4550 is
meant to be specified with DDR
3 memory - a lot of manufacturers (I'm looking at you, XFX) have started specifying the "wrong" memory for these cards (I've seen a couple of 46
70s with DDR2 recently, which is also out of spec...). Ebuyer have a
256MB HD4350 for £22. Otherwise all the 4350s and 4550s seem to be about the same price at £27 - £30...