Nvidia GeForce GTS250 or ATi HD4770?

hey. i going to buy a new card, simple question, GTS250 or 4770?

GTS250 is £130, but the 4770 at £84 seems to have a high specification, also with 4770's uniquie 40 nano meters
Processor structure, i won't have to buy a new 750 Watt psu to replace my 550 Watt?

but i just keep getting drawn to the GTS250 since Nvidia is the Bigger/Better company towards ATi now.

The GTS250 is the better card, though I'm not sure if its 50 pounds better. (what is that, $100USD?) The GTS250 is the 9800GTX+, which is every so slightly better then the 4850, which is ever so slightly better then the 4770. I personally would buy the 4770, but I'm tight with money. (happens when your in my situation.)

I'm not sure what you mean by bigger better company, I am drawn to benchmarks. And they say the 4770 isn't that much slower then the 4850/GTS250.

The only problem that you'll probably run into is finding a 4770. It sells pretty fast and is quite hard to find.

isn't the 4770 a myth? like the lock ness monster....

The GTS250 is a little faster, but I don't feel that the extra performance justifies the extra cost. The only problem is finding the 4770 in stock, but it seems as though retailers are beginning to have some for more than an hour so demand is tapering off a bit . Just go to newegg and have it auto notify you when some are in stock.