Corsair XPERT in Action: a Video Clip
Seeing is believing, so we are offering you a small video clip that shows how a module of Corsair XPERT memory really works. The clip is in the WMV format and weighs 400 kilobytes. You can download it here.
Talking about the thrilling features of Corsair XPERT modules with their indicators we nearly forgot about its main purpose – it is computer memory after all! And we can test its performance as we always do with memory modules that come to our test labs.
The 512MB stick we’ve got belongs to the CMXP512-3200XL series, i.e. it is DDR400 SDRAM intended to work at its rated frequency with the minimal timings. That’s exactly what is written in the module’s SPD chip.
Well, let’s see how our Corsair XPERT CMXP512-3200XL module performs in practice. Since the manufacturer had sent us just one stick, not a dual-channel pair, we decided to check it out on a system with a single-channel memory controller, based around a Socket 754 Athlon 64 processor. We’d like to note that Corsair’s XPERT modules are not selling yet, so the characteristics of units that will be actually selling may be slightly different from those of our sample.
We assembled a testbed from the following components:
- AMD Athlon 3400+ CPU;
- EPoX EP-8KDA3+ mainboard (NVIDIA nForce3 chipset);
- PowerColor RADEON X800 XT graphics cards;
- Maxtor MaXLine III 250GB hard disk drive (Serial ATA-150).
The goal of our tests was to find the highest frequencies the Corsair XPERT CMXP512-3200XL module would be stable at, at different timings and voltages. We run our tests in Windows XP and check the system’s stability by running 3DMark 2001 SE and 3DMark05 that put the memory subsystem under a stress, and by launching a small utility called SuperPI which can sometimes crash even the most stable computers. We set the Memory Timing parameter to 1T for the duration of our tests. The results are displayed in the following diagram:
As you see, the Corsair XPERT CMXP512-3200XL memory can conquer rather high frequencies, although it officially belongs to the Low Latency variety. With CAS Latency = 2.5 the memory can normally work at clock rates up to 260MHz, i.e. better than DDR500 SDRAM. At the minimal timings the memory can be clocked at up to 220MHz after you increase its voltage to 2.8v.