Bigger bus?! What for?
At 2200MHz (4400Mhz DDR), the 4870 has a bandwidth of 140GB/s. That's about twice the bandwidth of a 3870, and more than the 512bit 2900XT.
There's also something that's not been quoted from vr-zone:
I wonder what they mean about that "4D+1D". Is it that every group of five SPs has a more complete unit like the R6xx?55nm TSMC process
480 SP (4D+1D) - 1D consists of 96 SP
32 TMU
800-900MHz core clock
PCB design similar to RV670
Replace current RV670 price point
Those 32 TMUs at 1050Mhz will rock, if this is confirmed![]()





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