Memory Bandwidth Performance
Our MaxxPI² memory bandwidth test shows that write performance of the Asus P7P55D Deluxe is on the level, while read speeds are a little lacking. Keep in mind that all configurations are using the same DDR3 memory at the same frequency with the same timings.
When measuring CPU cache performance we find that the Asus P7P55D Deluxe is on par with the Maximum III Gene and MSI P55-GD65 motherboards. Interestingly, the AMD processors deliver significantly better read performance in this test, while their write performance is slightly slower than the Intel Core processors.
EVEREST Ultimate Edition shows a noticeable decline in read performance for the Asus P7P55D Deluxe when testing memory bandwidth. Specifically, there's a 1.1GB/s performance loss when compared to the same test using MaxxPI², while write performance remains as we expected.