Just noticed something rather surprising. tRCD relaxing from 2 to 3 makes a huge difference.
My settings on 2-2-2-6 Kingston HyperX, street racer, 5:4 with 270:216 (2.4C @3.243GHz) gives 2755 MB/s in Memtest86. Using 2x256 Kingston HyperX PC 3200, dual channel, 511 MB with 1 MB memory hole.
All the same except for 2-3-2-6 gives 2585 MB/s.
This is 6.6% difference in the bandwidth!
Similar difference is visible in Sandra.
No wonder Corsair and Kingston are now selling "faster" 2-3-2-6 memory.
My settings on 2-2-2-6 Kingston HyperX, street racer, 5:4 with 270:216 (2.4C @3.243GHz) gives 2755 MB/s in Memtest86. Using 2x256 Kingston HyperX PC 3200, dual channel, 511 MB with 1 MB memory hole.
All the same except for 2-3-2-6 gives 2585 MB/s.
This is 6.6% difference in the bandwidth!
Similar difference is visible in Sandra.
No wonder Corsair and Kingston are now selling "faster" 2-3-2-6 memory.