Average Bench: 76.7% (65th of 115)

Based on 131,007 user benchmarks.  Model: Corsair Vengeance LPX CMK16GX4M2A2666C16 2x8GB

Good average bench

The Corsair Vengeance LPX DDR4 2666 C16 2x8GB averaged 23.3% 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 29.8GB/s
Avg. 16 Core Write Bench 28GB/s

Above average consistency

The range of scores (95th - 5th percentile) for the Corsair Vengeance LPX DDR4 2666 C16 2x8GB is 39.1%. 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. Physical RAM Latency 76.9ns
Avg. 1 Core Read Bench 18.3GB/s

Average Bench

(Based on 131,007 samples)
Min Avg Max
21.7 MC Read 29.8 37.3
16.1 MC Write 28 36
18.8 MC Mixed 24.3 31.3
78.1% 27.3 GB/s
Min Avg Max
13 SC Read 18.3 25.1
15.5 SC Write 27.6 37.4
16.6 SC Mixed 23.3 29.2
65.9% 23.1 GB/s
Min Avg Max
58.1 Latency 76.9 106
52% 76.9 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 36.6
MC Write 30.6
MC Mixed 32.3
95% 33.2 GB/s
SC Read 22.5
SC Write 17.4
SC Mixed 31.5
68% 23.8 GB/s
Latency 81.8
49% 81.8 ns
2 of 2 slots used
16GB DIMM DDR4 clocked @ 2133 MHz
MC Read 24.1
MC Write 28.9
MC Mixed 24.4
74% 25.8 GB/s
SC Read 15
SC Write 29
SC Mixed 21.7
63% 21.9 GB/s
Latency 92.4
43% 92.4 ns
2 of 2 slots used
16GB DIMM DDR4 clocked @ 2133 MHz
MC Read 22.5
MC Write 22.2
MC Mixed 19.3
61% 21.3 GB/s
SC Read 13.4
SC Write 21.8
SC Mixed 17.6
50% 17.6 GB/s
Latency 73.3
55% 73.3 ns
2 of 4 slots used
16GB DIMM DDR4 clocked @ 2133 MHz
MC Read 15.2
MC Write 14.9
MC Mixed 15.9
44% 15.3 GB/s
SC Read 5.4
SC Write 8.3
SC Mixed 6
19% 6.57 GB/s
Latency 112
36% 112 ns
131,007 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 54,906,063 RAM Kits tested.


MSRP ≈ $79 @ launch in Oct '14
AmazonUS CMK16GX4M2A2666C16 $6516 mins
AmazonUS CMK16GX4M2A2666C16R $7016 mins
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Typical Vengeance LPX DDR4 2666 C16 2x8GB Builds (Compare 16,386 builds) See popular component choices, score breakdowns and rankings.
Gaming 115%
Desktop 97%
Nuclear submarine
Workstation 107%

Motherboard: MSI Z390-A PRO (MS-7B98) - $220

EDIT WITH CUSTOM PC BUILDER Value: 69% - Good Total price: $1,273

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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  • - 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.
  • - SkillBench (space shooter) tests user input accuracy.
  • - Reports are generated and presented on userbenchmark.com.
  • - Identify the strongest components in your PC.
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  • - Compare your components to the current market leaders.
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Memory Kit Rankings (Price vs Performance) October 2022 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 6 years ago.


3 years ago.

Just great and i rock it !!!


22 months ago.

cheap yet one of the best ddr4 memory


4 years ago.



3 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.

115 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 i5-12600K $265Nvidia RTX 3060-Ti $450Crucial MX500 250GB $38
Intel Core i5-12400F $170Nvidia RTX 3070 $500Samsung 850 Evo 120GB $106
Intel Core i7-12700K $399Nvidia RTX 3050 $300Samsung 860 Evo 250GB $52
Seagate Barracuda 1TB (2016) $33Corsair Vengeance LPX DDR4 3200 C16 2x8GB $60SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $30Corsair Vengeance LPX DDR4 3000 C15 2x8GB $60SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $453SanDisk Extreme 16GB $17
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