nVidia stream processors vs AMD stream processors?

[han_solo]

Hi there, looking to replace my failing (i think) GT 220 (keeps freezing in Win 7).

Anyway, it has 48 stream processors and decent power consumption.

I'm looking at the HD 6450 which has 160 stream processors.

Question is, is nV 48 = ati 160 stream processors?

(i'd like to maintain similar performance of the gt220 card you see).

thanks!!

 

[han_solo]

Put another way, would a hd 5450 max out the following game at medium resolution?

Command & Conquer Generals

(old game i know )

 

[han_solo]

thanks guys