Average Bench: 78.1% (59th of 113)

Based on 90,895 user benchmarks.  Model: Corsair Vengeance LPX CMK16GX4M2A2666C16 2x8GB

Good average bench

The Corsair Vengeance LPX DDR4 2666 C16 2x8GB averaged 21.9% 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 30.1GB/s
Avg. 16 Core Write Bench 28.6GB/s

Above average consistency

The range of scores (95th - 5th percentile) for the Corsair Vengeance LPX DDR4 2666 C16 2x8GB is 39.8%. 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 18.4GB/s
Avg. Physical RAM Latency 73.5ns

Average Bench

(Based on 90,895 samples)
Min Avg Max
19.3 MC Read 30.1 37.9
17.7 MC Write 28.6 36.3
18.1 MC Mixed 24.6 32.3
79.4% 27.8 GB/s
Min Avg Max
12.6 SC Read 18.4 25
16.2 SC Write 28.4 38.3
15 SC Mixed 23.9 30.3
67.3% 23.6 GB/s
Min Avg Max
56.9 Latency 73.5 103
54.5% 73.5 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 @ 2666 MHz
MC Read 35.2
MC Write 36.1
MC Mixed 28.1
95% 33.1 GB/s
SC Read 18.7
SC Write 38
SC Mixed 26.9
80% 27.9 GB/s
Latency 65.4
61% 65.4 ns
2 of 4 slots used
16GB DIMM DDR4 clocked @ 2667 MHz
MC Read 36.6
MC Write 32.2
MC Mixed 31.1
95% 33.3 GB/s
SC Read 23.8
SC Write 33.2
SC Mixed 26.5
80% 27.8 GB/s
Latency 76.6
52% 76.6 ns
2 of 4 slots used
16GB DIMM DDR4 clocked @ 2667 MHz
MC Read 33.3
MC Write 31.8
MC Mixed 22.9
84% 29.3 GB/s
SC Read 17.5
SC Write 30.4
SC Mixed 26.5
71% 24.8 GB/s
Latency 58.4
68% 58.4 ns
2 of 4 slots used
16GB DIMM DDR4 2133 MHz clocked @ 1067 MHz
MC Read 29.5
MC Write 25.1
MC Mixed 26
77% 26.9 GB/s
SC Read 17.8
SC Write 22.9
SC Mixed 22.2
60% 21 GB/s
Latency 97.7
41% 97.7 ns
90,895 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 38,426,342 RAM Kits tested.


MSRP ≈ $79 @ launch in Oct '14
OutletPCUS CMK16GX4M2A2666C16 $709 months
OutletPCUS CMK16GX4M2A2666C16R $709 months
AmazonUS CMK16GX4M2A2666C16 $8025 days
AmazonUS CMK16GX4M2A2666C16R $921 day
Send price feedback
Typical Vengeance LPX DDR4 2666 C16 2x8GB Builds (Compare 29,926 builds) See popular component choices, score breakdowns and rankings.
Gaming 112%
Desktop 95%
Nuclear submarine
Workstation 95%
Nuclear submarine

Motherboard: MSI Z390-A PRO (MS-7B98) - $130

EDIT WITH CUSTOM PC BUILDER Value: 68% - Good Total price: $967

Popular Vengeance LPX DDR4 2666 C16 2x8GB compatible motherboards:

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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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How it works

  • - Download and run UserBenchMark.
  • - 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.
  • - Identify the strongest components in your PC.
  • - See speed test results from other users.
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  • - Share your opinion by voting.
Memory Kit Rankings (Price vs Performance) January 2021 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 4 years ago.


2 years ago.

Just great and i rock it !!!


2 months ago.

cheap yet one of the best ddr4 memory


2 years ago.



2 years 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.

113 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.
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Intel Core i5-10600K $257Nvidia RTX 3070 $500Samsung 850 Evo 120GB $78
Intel Core i5-10400F $155Nvidia GTX 1660S (Super) $240Samsung 860 Evo 250GB $40
Seagate Barracuda 1TB (2016) $43Corsair Vengeance LPX DDR4 3200 C16 2x8GB $79SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $38Corsair Vengeance LPX DDR4 3000 C15 2x8GB $71SanDisk Extreme 32GB $28
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Ultra Fit 32GB $16
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