Meaning they swap places on what they each do better.
If it was my call and I was going to spend 300 bucks.....I'd go with the 7950.
Way better bandwidth.
ok im building a gaming pc with an i5-3750k CPU... i want to mainly play diablo 3 and starcraft 2 on ultra settings, witch i believe NVDIA favors --- also looking into games such as Crysis 3, B3, and Metro witch i heard the 7950 favors because of memory/bandwidth yadda yadda yadda.. so im asking YOU PEOPLE FOR HELP !!
also. PhysX looks sick just saying... and more games are starting to offer it -- PLEASE COMMENT. *FACTS*
GTX 660Ti ***VS*** Radeon HD 7950