Initial Performance Results

RightMark Memory Analyzer comes in handy for getting a good view on the performance and the stability of the G.Skill PC2-6400 Low Latency edition dual channel memory. We will start with an out-of-the-box approach by simply running this memory at default speed of 800MHz and timings selected automatically by the SPD chip and the mainboard BIOS. Loading up to Windows desktop, we opened up RMMA and took a couple of screen shots for you, this is what we got. Actually the SPD chip doesn't seem to have the advertised latency numbers encoded, but use a very relaxed 5-5-5-15 timing. And no, that is not at all the recommended timings as specified by the manufacturers specifications.

Float Copy Results

We have to start somehow and that is exactly what we are doing now... The first benchmark on RightMark Memory Analyzer is the Float Copy results. We actually used these as well some time ago on our other memory kits and we are kindly sold by these results. So we keep on using the same approach that has proven to be quite efficient. The G.Skill PC2-6400 memory sticks score a pretty high score of 3453MB/s on average, keeping in mind that the memory actually runs below their rated operational memory latencies, but at only 5-5-5-15. This certainly will impact the performance a bit, and show lower results of these high performance memory modules.

Float Scale Results

The following results we encounter are the Float Scale performance and once again these G.Skill ram puts down a very fine score of around 3488MB/s average. For DDR2 memory rated at PC2-6400 this is quite okay and on par with other brands, but we have to take into account that the memory timings are at default of 5-5-5-15 which are actually a bit higher then advertised. G.Skill clearly states on their website and the package that these memory sticks should operate at about 4-4-3-5, which should give higher scores, due to being able to react faster and therefore being more efficient. So we will show that later on.

Float Add Results

Let's move on and find back the Float Add results of the G.Skill PC2-6400 Edition memory modules reaching an average of 3881MB/s. Again the G.Skill memory does very good and the minimum and maximum scores are keeping up their level of performance. In fact looking at the figures they are very close and strong, meaning that the stability of these memory sticks is outstanding. Of course you need to take into account that at 800MHz the bandwidth might not be utilized at all time, which will cause a small drop in performance. But as clearly shown by these high performance sticks the average is very close to the minimum and maximum bandwidth scores, which means a very table operation throughout our memory benchmark.

Float Triad Results

To end we have the Float Triad results showing a 3885MB/s average score. Again we notice that the minimum and maximum results are on par in relation to each other. The less the gap is between these the better the stability will be. Naturally there will always be some difference, but the minimum speed may not drop too low. And certainly these G.Skill Low Latency Edition sticks show of their awesome stability and high performance operation through the below figures. Again showing a constant bandwidth, as the average is not far from the maximum reported. Great performance results even at quite relaxed timings, whereas G.Skill recommends far better timings to be used.

The G.Skill PC2-6400 memory clocks some decent scores and certainly does well on the different benchmarks than most other memory modules we have seen passing our hands. Keep in mind that this is how the memory will perform when you just plug these in your computer and start using em at 800MHz speed with the default SPD memory timings as stored on the memory. Of course these Low Latency stick are high performance memory modules which are advertised at better latency and should have a lot more up their sleeves. So just hold on till we get to that point and we will show you how much better this memory is performing with the optimized memory timings as advertised by G.Skill.