@ Rit,
well first of all check the link, Its the 5750 that I recommended to him. secondly he was asking about about upgrading his current system to get better performance for gaming....not multitasking.
I also said that his only other sensible alternative was to spend 4-500 quid on a new system, as these were the only upgrades with his current system that would improve gaming performance per dollar, and he will have to spend around $150+ to find a used socket 939 AMD X2 64 CPU, and at that point it becomes cost-ineffective. furthermore the upgrades i recommended will improve gaming performance greatly( even with a single core) as games (with the few exceptions like Flight SIM) are greatly GPU dependent. I think you are looking for the ideal solution here which is nice, but not everyone has the $$$ for the best solution. Given what this person has to work with and the budget he has to spend, I know that a RAM/GPU upgrade will yield far greater gaming results than spending his entire budget on a used 939 dual core. furthermore, when and if spardex does build a new machine, the 5750 will be able to be implemented into the new machine, a used $150 .00 socket 939 64 x2 becomes an expensive,outdated, and non transferable bookend.