Average Bench: 79.6% (56th of 108)

Based on 35,257 user benchmarks.  Model: Corsair Vengeance LPX CMK16GX4M2A2666C16 2x8GB

Good average bench

The Corsair Vengeance LPX DDR4 2666 C16 2x8GB averaged 20.3% lower than the peak scores attained by the group leaders. This is an excellent result which ranks the Corsair Vengeance LPX DDR4 2666 C16 2x8GB near the top of the comparison list.


Avg. 16 Core Read Bench 30.7GB/s
Avg. 16 Core Write Bench 29.7GB/s

Above average consistency

The range of scores (95th - 5th percentile) for the Corsair Vengeance LPX DDR4 2666 C16 2x8GB is 36.8%. This is a relatively wide range which indicates that the Corsair Vengeance LPX DDR4 2666 C16 2x8GB performs inconsistently under varying real world conditions.


Avg. 1 Core Read Bench 18.7GB/s
Avg. Physical RAM Latency 72.6ns

Average Bench

(Based on 35,257 samples)
Min Avg Max
22.1 MC Read 30.7 38
20.8 MC Write 29.7 36.3
18.5 MC Mixed 24.6 32.7
81% 28.4 GB/s
Min Avg Max
13.5 SC Read 18.7 24.3
17.8 SC Write 29.1 37.5
16.4 SC Mixed 23.8 28.7
68.2% 23.9 GB/s
Min Avg Max
55.5 Latency 72.6 99.7
55.1% 72.6 ns
User Benchmarks Bench Multi core Single core Latency
The fastest RAM (mainstream) averages a speed of 100%
2 of 4 slots used
16GB DIMM DDR4 clocked @ 2667 MHz
MC Read 37.8
MC Write 36.4
MC Mixed 32.2
101% 35.5 GB/s
SC Read 24.8
SC Write 35.9
SC Mixed 26.5
83% 29.1 GB/s
Latency 76.1
52% 76.1 ns
2 of 4 slots used
16GB DIMM DDR4 clocked @ 2133 MHz
MC Read 28.2
MC Write 27.1
MC Mixed 20.8
72% 25.4 GB/s
SC Read 17.2
SC Write 26.5
SC Mixed 23.4
64% 22.4 GB/s
Latency 63.1
63% 63.1 ns
2 of 4 slots used
16GB DIMM DDR4 clocked @ 2133 MHz
MC Read 28.2
MC Write 26.5
MC Mixed 20.2
71% 25 GB/s
SC Read 17.4
SC Write 26.9
SC Mixed 22.7
64% 22.3 GB/s
Latency 69.6
58% 69.6 ns
2 of 4 slots used
16GB DIMM DDR4 clocked @ 2133 MHz
MC Read 25.2
MC Write 25.9
MC Mixed 19.1
67% 23.4 GB/s
SC Read 16.5
SC Write 24
SC Mixed 20.4
58% 20.3 GB/s
Latency 61.7
65% 61.7 ns
35,257 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 16,447,236 RAM Kits tested.


Approx. $79 @ launch in Oct '14
OutletPCUS CMK16GX4M2A2666C16R $772 hrs
OutletPCUS CMK16GX4M2A2666C16 $772 hrs
AmazonUS CMK16GX4M2A2666C16 $7713 mins
NeweggUS CMK16GX4M2A2666C16R $776 hrs
AmazonUS CMK16GX4M2A2666C16R $956 days
EbayUS CMK16GX4M2A2666C16R $13421 mins
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Typical Vengeance LPX DDR4 2666 C16 2x8GB Builds (Compare 26,660 builds) See popular component choices, score breakdowns and rankings.
Gaming 92%
Nuclear submarine
Desktop 85%
Aircraft carrier
Workstation 64%

Motherboard: Asus Z170 PRO GAMING - $157

EDIT WITH CUSTOM PC BUILDER Value: 106% - Outstanding Total price: $933

Popular Vengeance LPX DDR4 2666 C16 2x8GB compatible motherboards:

How Fast Is Your RAM? (Bench your build) Size up your PC in less than a minute.

Welcome to our freeware PC speed test tool. UserBenchmark will test your PC and compare the results to other users with the same components. You can quickly size up your PC, identify hardware problems and explore the best upgrades.

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  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
  • - Drive tests include: read, write, sustained write and mixed IO.
  • - RAM tests include: single/multi core bandwidth and latency.
  • - Reports are generated and presented on userbenchmark.com.
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Memory Kit Rankings (Price vs Performance) May 2019 RAM Rankings.

We calculate effective RAM speed which measures performance for typical desktop users. Effective speed is adjusted by current cost per GB to yield value for money. Our calculated values are checked against thousands of individual user ratings. The customizable table below combines these factors to bring you the definitive list of top Memory Kits. [RAMPro]


Group Test Results

  • Best user rated - User sentiment trumps benchmarks for this comparison.
  • Best value for money - Value for money is based on real world performance.
  • Fastest real world speed - Real World Speed measures performance for typical consumers.


Added 3 years ago.


6 months ago.

Just great and i rock it !!!


15 months ago.



4 months ago.

Had to RMA a stick due to constant BSOD and failed memtest86. Still experienced rare BSOD with new ram due to the failed stick corrupting windows system files, had to reinstall windows to fix the issue.

108 Memory Kits (Compared) Thousands of user benchmarks compiled into one comparison list.

See how consistently different RAM Kits perform with varying real world conditions. The charts also illustrate overall performance, popularity and rank.

 Frequently Asked Questions

 Best User Rated

The Best.
Intel Core i7-8700K $356Nvidia GTX 1070 $314Samsung 850 Evo 250GB $92
AMD Ryzen 5 2600 $140Nvidia GTX 1060-6GB $208Samsung 850 Evo 500GB $99
AMD Ryzen 5 1600 $108Nvidia GTX 1080-Ti $808Samsung 850 Pro 256GB $163
Seagate Barracuda 1TB (2016) $44Corsair Vengeance LPX DDR4 3000 C15 2x8GB $90SanDisk Extreme 64GB $128
WD Blue 1TB (2012) $40G.SKILL Trident Z DDR4 3200 C14 4x16GB $651SanDisk Extreme 32GB $48
Seagate Barracuda 3TB (2016) $73Corsair Vengeance LPX DDR4 3200 C16 2x8GB $85SanDisk Ultra Fit 32GB $12
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