HyperX HX428C14SBK2/16 Review

HX428C14SBK2-16_00 Despite being the biggest memory maker in existence, Kingston are known to take their time before pushing any new products into the market. When we first heard of the Savage DDR4 series, our initial thought was that HyperX would finally push their specs above DDR4-3000 and compete with the likes of G.Skill Ripjaws, Trident and Corsair Dominator. However, a careful inspection of the specs has revealed that the Savage is nothing but a plug between the entry level Fury and the now-outdated Predator series.

Still, since the Savage are sporting some fresh R&D attention, maybe there is more than meets the eye. Well, let us find out.

 Manufacturer  Kingston HyperX
 Series  Savage
 Part Number  HX428C14SBK2/16
 Type  DDR4
 Capacity  16GB (2 x 8GB)
 Frequency  1400 MHz (DDR4-2800)
 Timings  14-15-15-39
 Voltage  1.35 V
 Warranty  Lifetime Warranty

For our testing, we obtained a 16GB dual-channel kit with a speed rating of DDR4-2800 CL14. Note that many of European webshops mistakenly list the specified voltage of all Savage kits as 1.2V, when in reality is 1.35V. Thus, the specs of the Savage are no different to the current line of DDR4 Predator kits that have been around for more than a year.


In a familiar Kingston fashion, the packaging is beautifully simple. You can clearly see what you are going to buy and you are not overloaded with useless marketing bullet points.

HX428C14SBK2-16_01 HX428C14SBK2-16_02

In terms of appearance, the DDR4 versions of the Savage are a straight copy of their DDR3 counterparts. Except, of course, Kingston's new obsession with black colour schemes, which has taken away the beautiful red heatsinks, that we were huge fans of.

HX428C14SBK2-16_04 HX428C14SBK2-16_08

Looks aside, the heatsinks on the Savage are not the pair of cheap thin aluminium plates that we were getting used to. They are much thicker, meatier and should therefore be more efficient.

You might think that there is no need to invest in advanced heatsinks with DDR4 and, most of the time, you would be right. However, our sample of the Savage used to get quite hot, especially in overclocked modes, so we are glad to have some extra cooling capability.

HX428C14SBK2-16_11 HX428C14SBK2-16_12

The adhesive that holds the heatsinks in place is strong enough to ensure that they stay in place under normal use, but at the same time it is weak enough not to cause any difficulty come the need to pull the heatsinks off.

With the heatsinks detached, we found our modules to be based on Hynix H5AN4G8NMFR memory chips manufactured during twelfth week of 2015. As suggested by the 4G bit of the part number, each of these memory chips can contain up to 4Gbit of 512MB of data, thus it takes sixteen such chips to assemble each 8GB module.

HX428C14SBK2-16_SPD HX428C14SBK2-16_Thaiphoon

Each module carries a miniature SPD chip that is flashed with information on its manufacturer, part number, serial number and the production date. 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 pair of XMP (Xtreme Memory Profile), first of which contains the kit's formal specs while the second provides a backup DDR4-2666 CL14 option. 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 first XMP on our platform has resulted in the following timing and subtiming values being selected by the test platform.


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  1. I like the fact that one can know the IC model/specs with thaiphoon burner on Kingston memory kits without the need to remove the heatsinks.