Memory tests and HEXUS Pifast
Summary
The artificial memory tests see the boards tightly bunched.
The P35 and P965 trail slightly with regards to latency, with the P5K Deluxe requiring DDR2-1067 memory to match the 975x and NVIDIA chipsets. However, Pifast sees the Intel chipsets all on a par, with NVIDIA's offerings coming in over a second behind.
The move to DDR2-1066 would most likely have more of an effect if it were coupled with an increase to the 1333FSB, as dual-channel DDR2-800 already offers more than enough bandwidth to saturate the front-side bus.