Language Selection

English French German Italian Portuguese Spanish

Opteron Memory Timings Tested

Filed under
Hardware
Reviews

When building any modern computer, the choice of which memory to use is a major consideration. After all, why spend a mint on the latest CPU and motherboard, only to slow it down a bit with anything but the best memory available? This was definitely a big consideration when we began work on our Ultimate Linux Workstation. So, the question before us was, “Which memory should we buy and would the expense of the lower latency memory be worth it?” To answer this question, we went in search of the three standard CAS latencies that you will find for DDR memory and we put them to the test on our new Opteron testbed.

For this testing we went out and found memory specifically designed to run at the settings we wanted to test. This made the testing more real world, since these modules represented certain price points.

For the CAS 2 and CAS 3 memory, we turned to Corsair and their XMS and Ultra-Stable server memory respectively. For CAS 2.5, we called up Kingston for some of their HyperX registered ECC modules. Both companies were more than happy to participate in our testing. This also gave us an opportunity to test out these memory modules for compatibility on the new Tyan Thunder K8WE motherboard.

First of all, were all of the memory modules stable? Yes. All modules made it through all stress testing without error. For our testing we ran all modules with ECC enabled. This is a requirement for our CAS 2 modules, so we thought it was only fair to run ECC on all modules. We've found through internal testing that ECC does not appear to measurably hurt performance. The only hitch we found in testing is that Kingston's modules did not SPD (Serial Presence Detect) at the advertised timings. This was not a huge issue though since we were able to set these manually. Both sets of Corsair's modules set themselves to the timings expected.

Now let's show you our setup: Link to setup, tests and results.

More in Tux Machines

More AMD Radeon R9 Fury Linux Benchmarks

Continuing on from yesterday's first Linux review of the AMD Radeon R9 Fury, here are some more Catalyst Linux benchmarks from this $550 graphics card. Since yesterday's review of the R9 Fury on Ubuntu Linux I have run some more tests covering a few other test profiles as well as delivering some more 1920 x 1080 and 2560 x 1440 (rather than 4K) benchmarks for those wishing to run their own side-by-side comparisons against this air-cooled Fiji graphics card with 4GB of High Bandwidth Memory. Read more

Lubuntu 15.10 Alpha 2 Is Ready for Download, Still Using the LXDE Desktop Environment

The development team behind Lubuntu, an open-source and freely distributed flavor of the popular Ubuntu Linux operating system, announced a few minutes ago the release of the second Alpha build for the upcoming Lubuntu 15.10 (Wily Werewolf) distribution. Read more

Ubuntu Kylin 15.10 Alpha 2 Is Out for Testing with Linux Kernel 4.1, More

The development team behind the Ubuntu Kylin computer operating system have announced earlier today the immediate availability for download and testing of the second Alpha build of the upcoming Ubuntu Kylin 15.10 (Wily Werewolf) distro. Read more

Linux-powered smart sniper rifle can be hacked

Two years ago, TrackingPoint burst on to the scene with a Linux-powered smart sniper rifle that took the guesswork out of killshots. Now, however, a pair of hackers have figured out how to make it miss every single time. Read more