A couple of weeks ago, a Californian memory maker called Patriot have released a wide range of DDR4 models, aggressive pricing of which is supposed to give the likes of Corsair and G.Skill a run of their money.
It sounds very attractive, but the last time we had a go at one of Patriot's DDR4 products, we discovered a number of issues and were not able to render a conclusive verdict. To see if anything has improved since then, we are looking to continue where we have previously left off, namely, by testing another 16GB 2400C15-rated model.
|Capacity||16GB (2 x 8GB)|
|Frequency||1200 MHz (DDR4-2400)|
The kit we have on hand belongs to the Viper Xtreme lineup, which appears to be a more posh version of the Viper 4 that we tested previously. Same as before, it is a 16GB version that has a speed rating of DDR4-2400. The only technical difference now is that we have gone for a pair of 8GB modules rather than a quartet of 4GB, following the popularity of a dual-channel LGA1151 platform.
As usual, our adventures begin with the packaging. In case with the Viper Extreme, this is a transparent plastic tray, which is enclosed with a piece of cardboard highlighting the main product features.
The appearance of the Viper Xtreme series was shaped before the mass migration to full-black colour schemes so the kit manages to have some visual features that separate it from its competitors.
The Viper Xtreme heatsinks are a rather sophisticated piece of kit. The colour accents might make you think that they are made entirely out of copper, but their copper content only goes as far as a pair of thin plates between the memory chips and the traditional stamped aluminium heatsinks.
The heatsinks attach to the modules via a layer of thermal glue between them and the chips. Traditionally, the adhesive used by Patriot is quite strong, so you need to be extra cautious if you are planning on pulling the heatsinks off.
With the heatsinks peeled away, we found our modules to be based on Hynix (aka Hyundai Electronics) H5AN4G8NMFR memory chips that have been relabeled. As suggested by the 4G bit of the part number, each of these chips can contain up to 4Gbit of 512MB of data, thus it takes sixteen of them to assemble each 8GB module.
Not too long ago, H5AN4G8NMFR were the best choice for memory chips on DDR4 but recently their crown has been taken by Samsung chips that can easily achieve speeds in excess of DDR4-4000. Still, any kind of Hynix is a welcome sight next to the Microns that Patriot were seen using before.
Each module carries a miniature SPD chip that is flashed with information on its manufacturer and part number. The SPD chip also contains several setting presets (called JEDEC presets) that guarantee compatibility no matter how weird of a platform you plan to use the kit in. On top of the JEDEC profiles, there is a an XMP (Xtreme Memory Profile) which contains the kit's formal specs.
Note that most motherboards will set the memory to its highest JEDEC profile unless you go in the BIOS and manually load the XMP. Loading the XMP on our test platform has resulted in the following timing and subtiming values being automatically selected.