ADATA XPG 2x4GB DDR3-2133X CL10 RAM Review

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Today we bring you the latest ADATA XPG V1.0 memory line – DDR3-2133X. The memory came as a 2 x 4 GB kit, which is enough for nearly everything so it should satisfy most gamers and computer enthusiasts for whom this product is designed.

A note from ADATA about their new memory series:

The reconfigured components of XPG V1.0 combine style and technology to create a newer and cooler approach to maintaining stability in demanding computer systems. The innovative engineering and unique appearance of the new XPG heat sinks make XPG V1.0 requisite gear for the most dedicated gamers and power users.

Now let’s take a look at more detailed specification of our memory kit.

A Closer Look & Specifications

  • Product Number:  AX3U2133XW4G10-2X
  • Rated speed:  DDR3-2133 / PC3-17000
  • Density:  2×4 GB ( Dual Channel )
  • SPD Profile:  1600 9-9-9-24 1.50 V
  • XMP Profile:  2133 10-11-11-30 1.65 V

SPD or XMP profiles don’t have a specified Command Rate programmed, so motherboards will set as default 1N or 2N. Our tested Maximus V Gene is setting it as 1N. It should also work like that on any Ivy Bridge platform for which it’s designed.

Below there are screenshots from ASUS Mem TweakIT and CPU-Z showing more detailed timing specifications. These timings were set from XMP profile. This memory has only one XMP profile which is working correct.

ASUS Mem TweakIt
ASUS Mem TweakIt



I was really curious what IC has been used by ADATA for this memory kit. Most available RAM is using Samsung or Hynix IC so my first thought was one of these two brands.

ADATA used single side modules for this kit. What can can see below used IC has been made by … surprise !!  SpecTek.

ADATA XPG 2133X CL10 - SpecTek IC
ADATA XPG 2133X CL10 – SpecTek IC



For all who have never heard of SpecTek, here is some short info from their website:

SpecTek began at Micron in 1988 as a component-recovery group. In the two decades since its inception, the company has grown from an internal group to a manufacturing division; that experience has produced a product portfolio and reputation that makes SpecTek a leader in application-specific memory solutions.

The packaging is standard but enough to protect memory during transport. It also includes a short product description and specifications.

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Of course, what’s most important is inside the package: two low profile memory sticks protected by red aluminum heatspreaders.

To be honest, I liked the older designs, like those from the ADATA Gaming series. Except looks it shouldn’t change much as memory isn’t getting hot even during overclocking.

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Performance & Testing

Test System

Test Software

  • SuperPi 1.5
  • AIDA64 Memory & Cache benchmark
  • Maxxmem v1.99
  • 7-Zip
  • CPU-Z 1.61.3
  • ASUS MemTweakIT 1.1.7

Stability at Rated Speed

To begin with, we have tested the memory at the manufacturer’s specified settings using an UltraX R.S.T. Pro3 hardware memory tester:

R.S.T. Pro3 is the definitive memory diagnostic and validation tool designed for the rigorous testing needs of desktop & server memory manufacturers, system builders, design engineers, and service professionals.

R.S.T. Pro3 identifies memory defects that may have passed every usual manufacturing test, but which can still fail in normal use. A major advantage of R.S.T. Pro3 compared to stand alone testers, is the capability of testing and validating RAM within the system environment, testing for Behavioral failures that are sensitive to system idiosyncrasy. Quickly isolate intermittent failures that do not necessarily prevent a system from booting, but surface during extended testing sessions.

UltraX R.S.T Pro3
UltraX R.S.T Pro3

As we see in the photo below, ADATA XPG 2133X has passed this test flawlessly five times, which also confirms it was well-tested before it left the factory.

ADATA XPG 2133X CL10 - R.S.T Pro3 test result
ADATA XPG 2133X CL10 – R.S.T Pro3 test result

Now that we are sure that our sample is perfectly stable, we can move on to the next part of this review.

Performance Testing

AIDA64 Memory & Cache Benchmark

The first test will be AIDA64 Cache & Memory Benchmark, which is quite a good tool to check overall performance of memory and cache. Since we are mainly interested in memory results, I will present memory read, write and copy transfer results.


ADATA XPG memory is performing well, achieving results about as high as GEIL Veloce series based on Hynix CFR ICs. Memory writes aren’t much slower than the faster TridentX kit what is also good result.

MaxxMem – Preview v1.99

Our second test will be MaxxMem Preview v1.99, which is also a popular memory bandwidth benchmark that clearly shows differences between memory settings.

ADATA XPG 2133X CL10 - MaxxMem 1.99
ADATA XPG 2133X CL10 – MaxxMem 1.99

MaxxMem also shows that the ADATA kit performs nearly the same as the GEIL kit. Nearly the same settings with nearly the same results. It just proves that SpecTek ICs aren’t a worse choice than the more popular Samsung or Hynix IC.

The ADATA 2133 kit is also noticeably faster than Patriot 1866 kit , especially in memory copy and read transfers.

SuperPI 32M

SuperPI 32M is a really popular benchmark among overclockers. It also likes fast memory, so it’s good for memory comparisons.

ADATA XPG 2133X CL10 - SuperPi 32M
ADATA XPG 2133X CL10 – SuperPi 32M

Even though the results are only within a couple of seconds, in reality it’s quite a big difference. It won’t affect daily work, but it counts for those who care about benchmarking and overclocking. There is supposed to be a bigger difference at higher CPU clocks, but I decided to use 4.5 GHz as it’s a popular setting for overclocked K series processors and it’s not limiting the memory controller bandwidth as much as stock clocks.


Lastly, we’ll run something what affects more daily work: 7-Zip , compression and decompression benchmark. It’s based on a popular open source application. We will use the 64-bit version with dictionary size set to 128 MB, which in total gives us over 6 GB of memory usage. With system and other services running in the background it’s nearly 8 GB total RAM usage.

ADATA XPG 2133X CL10 - 7-ZIP
ADATA XPG 2133X CL10 – 7-ZIP

Results in 7-ZIP are similar to what we saw in the previous tests. Once again 2133 kits are almost equal and even though on the graph it looks like big difference (auto-range-adjusted in Excel), all tested kits perform similar in this test.


The ADATA XPG 2133 is overclocking really well. Without any voltage adjustments, I was able to run this memory at DDR3-2400 10-11-11-30 1N settings. The same settings were also optimal in performance tests like MaxxMem or AIDA64.

The maximum stable overclock that I could set was 1300 MHz with 10-13-13-31 1N timings at 1.75 V. It’s quite a good result but overall performance is slightly lower than the already mentioned 1200 MHz 10-11-11-30 1N settings.

ADATA XPG 2133X CL10 - max stable OC
ADATA XPG 2133X CL10 – max stable OC

I was able to run this memory even higher but nothing above 2600 was stable, no matter what timings or voltages I set.

The maximum overclock achieved on the ADATA XPG 2133X kit was 1400 MHz ( DDR3-2800 ) 11-13-13-35 1N 1.85 V, but that’s only for CPU-Z validation as it couldn’t pass any test.

ADATA XPG 2133X CL10 - max OC
ADATA XPG 2133X CL10 – max OC

Last, we’ll show you a table with all overclocking results that were stable in HyperPi 32M. As we see, until the DDR3-2133 mark this memory is scaling nearly like new Crucial ICs and above 2133 like new Samsung ICs. Quite interesting behavior.

ADATA XPG 2133X CL10 - max stable OC
ADATA XPG 2133X CL10 – max stable OC

Final Thoughts &  Conclusion

It’s good to see that ADATA has released a new memory series using new SpecTek ICs, which isn’t so popular on the market but as we see, it performs really well. It’s actually scaling like more popular, Samsung modules that we can find in many high-end memory kits.

I won’t comment much on the new design. Some users may like it, some may not. Personally, I like the older design that we saw in the second revision of the ADATA Gaming series better. A different PCB color would give a much better effect, as standard green PCB just doesn’t fit with a red heatspreader.

The price of this memory kit is $89.99 on Newegg, which isn’t really high but isn’t low either. At a similar price point there are more memory kits with nearly the same specification.

vX memory kit is fast, overclocks high and works at low temperatures. It’s simply a great memory kit that should satisfy gamers and computer enthusiasts alike.


  • High performance
  • Low profile heatspreader
  • Runs cool
  • New heatspreader (for those who like new design)


  • Standard, green PCB with new red heatspreader
  • Price could be lower

ocapproved Click the stamp for an explanation of what this means.

Bartosz Waluk (Woomack)


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  1. Ahh yes. Interestingly, I don't believe any of the editors knew how to do that. Woomack showed us a neat new trick. I should probably start using it in my gratuitous photos sections, of which there are plenty. ;)
    It was indeed a great review, nice work Woomack!
    (I took the pics though briansun1 before running the kit through the R.S.T. Pro 3 ringer; so thanks! :p)

    Thanks all and again thanks to Hokie for photos and R.S.T. Pro3 test :thup:
    Thanks all and again thanks to Hokie for photos and R.S.T. Pro3 test :thup:

    You're very welcome. You did all the work part was one night and done. Thanks for the thorough testing!
    Well, nice review as usual...
    I really impressed with this kit, never even heard of any good SpekTek kit before, but these IC's surely are interesting. Wonder what some binning might net? :D It was about time some other player entered the high performance memory segment. :thup: