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Corsair Dominator Platinum PC3-15000 C9 2x4 GB (CMD8GX3M2A1866C9)

The 1866MHz Dominator Platinum kit doesn’t seem to differ much from the above-discussed 1600MHz one. The frequency is similar, and it contains two 4GB modules, too. In both cases we have a CAS Latency of 9 and a voltage of 1.5 volts. There is no visual difference between the CMD8GX3M2A1600C9 and CMD8GX3M2A1866C9 kits, either. Once again we see a high-performance passive cooling solution and the exclusive Dominator Platinum design.

On both sides of the module we can see an embossed manufacturer logo and stickers with the series name. The most important information, i.e. the specifications of the kit, is only listed on one sticker, though. It is here that we learn that the CMD8GX3M2A1866C9 is unique in some respects. Besides its timings of 9-10-9-27, it has a version number of 8.16, which means that it employs memory chips from Nanya. Thus, the DDR3-1866 Dominator Platinum kit is based on different components than the previous product.

It is impossible to tell what these chips are exactly, because their original marking was erased. We can only note that Nanya chips are but rarely used in overclocker-friendly products since they do not usually have high overclocking potential.

The timings are not as aggressive as those of the DDR3-1600 kit. Besides RAS# to CAS# Delay, all of the secondary timings are relaxed. You can easily see it in the information from the single XMP profile.

Anyway, the recommended voltage is a standard 1.5 volts, so this kit is not really a true overclocker-friendly product. It is rather meant for modders, especially as the CMD8GX3M2A1866C9 kit looks just as attractive as the rest of the Dominator Platinum series.

Corsair Dominator Platinum PC3-17066 C9 2x4 GB (CMD8GX3M2A2133C9)

True overclockers will only be interested in memory capable of working at frequencies above 2 GHz. The CMD8GX3M2A2133C9 kit is one such example but you must be aware that the price of such products grows up quickly along with their rated frequency. For example, the DDR3-2133 Dominator Platinum kit is about 40% more expensive than its DDR3-1600 and DDR3-1866 cousins of the same capacity.

The dual-channel 8GB CMD8GX3M2A2133C9 kit stands out in the Dominator Platinum series as it has a CAS Latency of 9 and a voltage of 1.5 volts while having a rather high rated frequency. The faster products in the series have a worse CAS Latency and a higher default voltage. On the other hand, the CMD8GX3M2A2133C9 is not as good as the lower-speed products in terms of timings. This kit’s timings are 9-11-10-27.

Besides the specs, we can note the version number in the stickers. The components are different again. Version 4.13 denotes Samsung chips which are not very popular in memory modules for enthusiasts.

The original marking is retained on the chips of the DDR3-2133 kit. As you can see, the CMD8GX3M2A2133C9 modules use Samsung’s HCH9 chips which have come to be frequently used in overclocker-friendly products some of which are quite impressive.

The XMP profiles of the CMD8GX3M2A2133C9 modules are written according to their specs. The compatibility SPD settings are the same as with the other products discussed in this review.


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