Is best bang for buck


512MB ATI Radeon HD4350 (Direct X10.1, PCI Express 2.0) - PC Pro Best Value
512MB ATI Radeon HD4550 (Direct X10.1, PCI Express 2.0)[upg £ 10.00]
512MB ATi HD4670 Graphics accelerator - DVI, DirectX 10.1 PCI Express 2[upg £ 34.00]
1GB ATI HD4670 Graphics accelerator - DVI, DirectX 10.1 PCI Express 2[upg £ 44.00]

They're my options on a computer im wanting to buy, there is also the option to upgrade to the 4850 but I don't want to spend the extra amount of money they want on it (+£100)

I'd get the 512mb 4670. To be honest I don't think modern games need even that much memory, so 1gb is too much.

I would have said get the 1GB, so you have plenty of breathing room. But it all depends on what you're using it for and how tight your budget is.

Id Say the 1gb since its the best