help what is the difference in performance?

[UnbeatenNate]

what is the difference between 384-bit and 352-bit in performance?

[Haro]

are you talking about bus bandwidth? im gonna assume yes 

if yes for a casual user nothing  

[narrdarr]

the bandwidths is usually correlated with the amount of vram on the card. The more vram the more bandwidth is needed

[Mateyyy]

It's not something you can judge performance by.

[5x5]

It's not a metric of performance. Assuming the same VRAM type and speed, a 384-bit bus would allow slightly higher bandwidtg