That's ok, but what about Radeon vs Gt 325? Which GPU is faster? And generally, is radeon cards better than Nvidia gforce cards?
In order from best to worst: GT 325M > HD 5470 > GT 310M. Performance all depends on which cards you are comparing, so in this case no the radeon card is not faster. The only major advantage ATI radeons have is DirectX 11 on the 5000 series cards.