Over the last 12 months, we have managed to convince seven different memory manufacturers to lend us some of their DDR4 products for our (and your) entertainment. Willing to add a new entry to this list, we have recently submitted a request to our old friends at Patriot and it did not take long before we got a positive reply.
|Capacity||16GB (4 x 4GB)|
|Frequency||1200 MHz (DDR4-2400)|
The kit that we received belongs to the DDR4 incarnation of Patriot's rather successful Viper series. It is rated for 1200MHz, which translates into a nominal rating of DDR4-2400, at latencies of 15-15-15 and voltage of 1.2V. These numbers can hardly impress anybody, but recalling our experience with DDR3 versions of the Viper, we were always able to achieve much more than the label suggested. Stick around to see if this is also the case here today.
Similar to their DDR3 predecessors, the DDR4 models of the Viper are shipped inside miniature cardboard boxes, where four modules are divided between two transparent plastic trays. Along with your memory, you also get a case sticker and a warming Hello from California.
There are things that we both like and dislike about our kit's appearance. Starting with the positive, we like the combination of red and black used by Patriot on the heatsinks. However, our overall impression was dragged down by the PCB, green colour of which stands out unnecessarily.
Constructively, each of the heatsinks is a union of three separate parts. On each side of the module, you have a plate that sticks on via some thermal glue. This pair of plates collects the heat from the memory chips and transfers it to the cooling fin at the top of the module via metal-to-metal contact.
The hardest part about removing the heatsinks is actually finding a tool that is small enough to undo the screws that hold the top fin in place. Once this is done and the adhesive is weakened by a heatgun, it takes a couple of seconds to take the modules completely apart.
With heatsinks out of the way, we see that each of our modules is based on eight memory chips that populate one of its sides. Along with Patriot's internal markings, the chips also feature partial labelling from their original manufacturer Micron and should belong to the D9RG_-family.
With only three DDR4 chip makers remaining in the business (other two being Hynix and Samsung), Patriot obviously did not have much choice at their disposal. Although we have seen Micron-based modules pull impressive overclock-numbers not that long ago, we would still prefer to see either Hynix or Samsung.
Each of the modules carries a miniature SPD chip that is flashed with information on its manufacturer and its part number. The SPD chip also contains several setting presets (called JEDEC presets) that guarantee backwards compatibility with platforms that do not support DDR4-2400 out of the box.
On top of the JEDEC profiles, there is an XMP (Xtreme Memory Profile) which contains the values that Patriot rates this kit at. If you intend to use this kit at its rated speeds, you need to go into your motherboard's BIOS and load the XMP manually. Once done, the motherboard should set your kit to roughly similar timings: