Opteron 6176SE versus Xeon X5680 Memory Bandwidth

Running STREAM memory bandwidth test on equivalently configured ProLiant DL385 G7 and DL380 G7 servers to demonstrate an example of performance differences between Opteron and Xeon.

Category:

Science & Technology

Tags:

• opteron
• xeon
• proliant
• dl380
• dl385

[DanielAtHP]

Opteron 6100 and Xeon 5600 series have different memory controller architectures. For best performance, you have to populate DIMMs in groups of 8 on a 2-processsor Opteron 6100 series server, while you have to populate DIMMs in groups of 6 on a 2-processor Xeon 5600 series server.

I ran the test in this video with 8x2GB in the AMD server, and 6x4GB in the Intel. I re-ran the test with 8x4GB in the AMD server and got about the same result (33,900 MB/s on the AMD).

[udirt]

@DrFPS1 lol most intel 56xx cpus even had to clock down the memory controller with each added dimm...

[DrFPS1]

Is this what come too? Put the same amount of ram in both machine or take your sticky notes and go home. 33% more ram in one machine thats amd fair bench mark