Without the technical knowledge to confirm/refute this, I turn to basic deduction. If PS4 now is 170 ish GB/s, and we're to believe that's half data rate, then the GDDR5 in PS4 was capable of 340 GB/s... That'll be a 'no' then.Never seen any claims or data that this arrangement whould impact bandwidth; TBH I don't think it does.