Now that we know the AMD AM2 memory controller doesn’t mind having four full banks with CL3 timings we can run the rest of our performance numbers. The 2GB kit was ran at 3-3-3-9 1T and the 4GB kit was run at 3-4-3-9 2T for the benchmarking.
Having 4GB of memory in the system actually helped improve performance even though it was running at a slower 2T command rate and a RAS-to-CAS latency of 4 instead of 3. Everest Ultimate 2006 showed the read and write scores to be a bit slower, but the copy and latency tests showed better results, which goes unexplained to us unless their benchmark utility likes the 1T CMD rate. Sandra 2007 showed slight bandwidth improvements and improved memory latency. In DOOM 3 we again picked up more frames and are now up to 159.1FPS an increase of 3 percent.
Let’s take a second and put everything together.