Synthetic: SiSoft Sandra and Everest
The CPU numbers for the 955 show a good increase in theoretical performance over the 840 processor though it still falls short of the top AMD dual-core processor. The memory performance numbers differ greatly between the SiSoft Sandra results and the Everest results. From what my contacts inside the memory manufacturers are telling me though, the SiSoft results are more indicative of latency numbers and the Everest results are good for testing bandwidth. That makes a lot sense since we are comparing an on-board DDR controller to chipset-based DDR2 controller.