Average Bench: 77.7% (55th of 104)

Based on 13,161 user benchmarks.  Model: Corsair Vengeance LPX CMK16GX4M2A2666C16 2x8GB

Good average bench

The Corsair Vengeance LPX DDR4 2666 C16 2x8GB averaged 22.3% 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 29.7GB/s
Avg. 16 Core Write Bench 29.3GB/s

Below average consistency

The range of scores (95th - 5th percentile) for the Corsair Vengeance LPX DDR4 2666 C16 2x8GB is 51.3%. 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 17.9GB/s
Avg. Physical RAM Latency 71ns

Average Bench

(Based on 13,161 samples)
Min Avg Max
16.1 MC Read 29.7 37.9
14.9 MC Write 29.3 36.2
13.3 MC Mixed 24 31.8
79.1% 27.7 GB/s
Min Avg Max
12 SC Read 17.9 22.5
14.3 SC Write 28.6 37.3
13.9 SC Mixed 23.4 28.4
66.6% 23.3 GB/s
Min Avg Max
55.6 Latency 71 101
56.3% 71 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 33.4
MC Write 37.1
MC Mixed 31.3
97% 33.9 GB/s
SC Read 19.9
SC Write 38.1
SC Mixed 28.7
83% 28.9 GB/s
Latency 61.2
65% 61.2 ns
2 of 4 slots used
16GB DIMM DDR4 clocked @ 3000 MHz
MC Read 33.3
MC Write 37.1
MC Mixed 28.7
94% 33 GB/s
SC Read 20.3
SC Write 41.1
SC Mixed 29.2
86% 30.2 GB/s
Latency 57.5
70% 57.5 ns
2 of 4 slots used
16GB DIMM DDR4 clocked @ 2667 MHz
MC Read 35.4
MC Write 34.2
MC Mixed 24.6
90% 31.4 GB/s
SC Read 19.9
SC Write 32.6
SC Mixed 26.5
75% 26.3 GB/s
Latency 57.3
70% 57.3 ns
13,161 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 7,826,987 RAM Kits tested.


Approx. $79 @ launch in Oct '14
AmazonUS CMK16GX4M2A2666C16 $17022 mins
NeweggUS CMK16GX4M2A2666C16 $1702 hrs
NeweggUS CMK16GX4M2A2666C16R $1852 hrs
OutletPCUS CMK16GX4M2A2666C16R $19310 hrs
OutletPCUS CMK16GX4M2A2666C16 $19310 hrs
AmazonUS CMK16GX4M2A2666C16R $21022 mins
EbayUS CMK16GX4M2A2666C16R $2446 mins
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Typical Vengeance LPX DDR4 2666 C16 2x8GB Builds (Compare 19,514 builds) See popular component choices, score breakdowns and rankings.
Gaming 94%
Nuclear submarine
Desktop 85%
Aircraft carrier
Workstation 65%
Battle cruiser

Motherboard: Asus Z170 PRO GAMING - $157

EDIT WITH CUSTOM PC BUILDER Value: 85% - Excellent Total price: $1,213

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 (UBM).
  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
  • - Drive tests include: read, write and mixed IO.
  • - Checks include: 4k Align, NCQ, TRIM, SATA, USB & S.M.A.R.T.
  • - 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) April 2018 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.
  • Fastest real world speed - Real World Speed measures performance for typical consumers.
  • Best value for money - Value for money is based on real world performance and price per GB.


104 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 $330Nvidia GTX 1070 $447Samsung 850 Evo 250GB $80
AMD Ryzen 5 1600 $170Nvidia GTX 1060-6GB $310Samsung 850 Evo 500GB $137
Intel Core i7-7700K $290AMD RX 480 $350Samsung 850 Pro 256GB $163
Seagate Barracuda 1TB (2016) $44Corsair Vengeance LPX DDR4 3000 C15 2x8GB $183SanDisk Extreme 64GB $70
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $957SanDisk Extreme 32GB $45
Seagate Barracuda 2TB (2016) $60Corsair Vengeance LPX DDR4 3200 C16 2x8GB $204SanDisk Ultra Fit 32GB $12
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