Now let’s look at G.SKILL F1-3200PHU2-2GBZX. This product is also far from ordinary. Why so? I believe you have already noticed a very specific set of timing combinations in the Testbed and Methods section of this review, haven’t you? The thing is that memory built with Infineon CE-5/6 chips is absolutely indifferent to Row Precharge parameter resembling Winbond chips from this prospective: the standard value of this parameter equals 2, and raising it doesn’t have any positive effect on the overclocking potential.
The same it true for other timing settings, too. They are certainly not the 2-2-2-5, but still lower than what we have just seen by F1-4000USU2-2GBHZ. Increasing these timings (except CAS, of course) doesn’t affect the frequency potential in any way.
We were a little bit upset with the overclocking results. According to statistics that has been accumulated on a few overclocking forums, the maximum frequency achievable on Infineon CE-5/6 chips can reach the impressive 260-300MHz. however with the current combination of frequency, timings, capacity and positioning of this memory kit as a value-line solution the result is still worth our applause.
I would like to stress that F1-3200PHU2-2GBZX is not very sensitive to the Command Rate parameter, as its influence is not high enough to make to let the overclocking results go beyond the measuring error. Therefore we only offer the scores for 1T Command Rate.
These data are also given in the same diagram. We immediately notice a few tendencies.
Firstly, the behavior of F1-3200PHU2-2GBZX differs dramatically from that of the previous kit: the frequency difference between the worst and the best result is half as big. However, the difference between the best and the worst timing settings is half as big, too. Note that this memory kits lacks only 5MHz before it reaches DDR400 mode with 2-2-2-5 timings. However, the peak working frequencies of F1-3200PHU2-2GBZX kit are much higher (10-15MHz) than those of the elder model. At least until 255MHz.
Secondly, the memory modules managed to get just a little bit beyond DDR500 mode, no matter what testing conditions applied. This is exactly what I meant when I mentioned the non-universal character of these 1GB memory DIMMs. The user will have to choose between frequency and timings when purchasing the modules, because the simple settings adjustment in the BIOS, the way they do it with 512MB modules (in particular the ones built with Samsung TCCD chips), will not solve the problem.
Thirdly, the only principally important parameter that can determine the frequency potential is CAS Latency. When we change the timings to 2-2.5-3, the frequency increases linearly.
And fourthly, as we can see from the diagrams, the voltage set 2.66V doesn’t really affect the modules’ potential (no more than 5MHz increase). This is very bad news for extreme overclockers (volmodding won’t help), but very good news for those who need reliable workhorse for everyday routine. In fact, no common benchmark will reveal any significant difference in results when you compare the performance of two 2GB modules against two 512MB modules. So, if you are one of those 3DMark enthusiasts, no need to worry.
During our test session we didn’t detect any significant overheating of the memory modules, so we can conclude that our today’s heroes from G.SKILL do perfectly well with their nominal heat-spreaders (although you can also do without them).