Average Bench: 103% (6th of 113)

Based on 22 user benchmarks.  Model: Corsair CMT16GX3M4X21 8x4GB
Poor: 79%Average: 103% Great: 117%

Outstanding average bench

The Corsair CMT16GX3M4X21 8x4GB averaged 3.0% higher than the peak scores attained by the group leaders. This is an excellent result which ranks the Corsair CMT16GX3M4X21 8x4GB near the top of the comparison list.


Avg. 16 Core Read Bench 44.8GB/s
Avg. 16 Core Mixed IO Bench 39.7GB/s

Above average consistency

The range of scores (95th - 5th percentile) for the Corsair CMT16GX3M4X21 8x4GB is 37.9%. This is a relatively wide range which indicates that the Corsair CMT16GX3M4X21 8x4GB performs inconsistently under varying real world conditions.


Avg. 1 Core Write Bench 12.4GB/s
Avg. 1 Core Mixed IO Bench 12.4GB/s

Average Bench

(Based on 22 samples)
Min Avg Max
21.8 MC Read 44.8 50.8
19.1 MC Write 38 46.7
20.5 MC Mixed 39.7 47.8
117% 40.8 GB/s
Min Avg Max
12.7 SC Read 15.6 19.3
9.2 SC Write 12.4 17
9.5 SC Mixed 12.4 15.6
38.5% 13.5 GB/s
Min Avg Max
54.2 Latency 65.2 81.3
61.4% 65.2 ns
User Benchmarks Bench Multi core Single core Latency
The fastest RAM (mainstream) averages a speed of 100%
8 of 8 slots used
MC Read 50.3
MC Write 38.5
MC Mixed 47.8
130% 45.5 GB/s
SC Read 18.7
SC Write 17
SC Mixed 15.6
49% 17.1 GB/s
Latency 56.3
71% 56.3 ns
8 of 8 slots used
32GB DIMM DDR3 clocked @ 1866 MHz
MC Read 46
MC Write 44.2
MC Mixed 42.6
126% 44.3 GB/s
SC Read 19.1
SC Write 16.5
SC Mixed 15.6
49% 17.1 GB/s
Latency 63.5
63% 63.5 ns
8 of 8 slots used
32GB DIMM DDR3 clocked @ 1866 MHz
MC Read 50.4
MC Write 31.6
MC Mixed 41.3
117% 41.1 GB/s
SC Read 13.6
SC Write 9.7
SC Mixed 10.6
32% 11.3 GB/s
Latency 78
51% 78 ns
22 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 45,661,091 RAM Kits tested.

Typical CMT16GX3M4X21 8x4GB Builds (Compare 241 builds) See popular component choices, score breakdowns and rankings.
Gaming 86%
Aircraft carrier
Desktop 82%
Aircraft carrier
Workstation 75%

Motherboard: MSI Big Bang-XPower II (MS-7737) - $385

EDIT WITH CUSTOM PC BUILDER Value: 54% - Above average Total price: $1,445

Popular CMT16GX3M4X21 8x4GB 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.

UserBenchmark of the month

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.
  • - SkillBench (space shooter) tests user input accuracy.
  • - Reports are generated and presented on userbenchmark.com.
  • - Identify the strongest components in your PC.
  • - See speed test results from other users.
  • - Compare your components to the current market leaders.
  • - Explore your best upgrade options with a virtual PC build.
  • - Compare your in-game FPS to other users with your hardware.
Memory Kit Rankings (Price vs Performance) September 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.


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.
Intel Core i5-11600K $270Nvidia RTX 3060-Ti $400Crucial MX500 250GB $45
Intel Core i5-11400F $260Nvidia RTX 3070 $500Samsung 850 Evo 120GB $183
Intel Core i7-11700K $350Nvidia GTX 1660S (Super) $240Samsung 860 Evo 250GB $52
Seagate Barracuda 1TB (2016) $40Corsair Vengeance LPX DDR4 3200 C16 2x8GB $78SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $35Corsair Vengeance LPX DDR4 3000 C15 2x8GB $78SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Ultra Fit 32GB $16
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