Average Bench: 37.6% (107th of 110)

Based on 207 user benchmarks.  Model: Corsair CM4X8GF2133C13K4 1x8GB

Poor average bench

The Corsair CM4X8GF2133C13K4 1x8GB averaged 62.4% lower than the peak scores attained by the group leaders. This isn't a great result which indicates that there are much faster alternatives on the comparison list.


Avg. Physical RAM Latency 83.8ns
Avg. 16 Core Read Bench 13.8GB/s

Very good consistency

The range of scores (95th - 5th percentile) for the Corsair CM4X8GF2133C13K4 1x8GB is just 15.6%. This is a relatively narrow range which indicates that the Corsair CM4X8GF2133C13K4 1x8GB performs reasonably consistently under varying real world conditions.


Avg. 16 Core Mixed IO Bench 11.1GB/s
Avg. 1 Core Mixed IO Bench 11.4GB/s

Average Bench

(Based on 207 samples)
Min Avg Max
10.1 MC Read 13.8 15.3
7.98 MC Write 12.7 14.7
8.74 MC Mixed 11.1 13.6
35.8% 12.5 GB/s
Min Avg Max
6.6 SC Read 11.4 14.8
5.92 SC Write 11.8 14.8
7.2 SC Mixed 11.4 14.2
33% 11.5 GB/s
Min Avg Max
62.1 Latency 83.8 111
47.7% 83.8 ns
User Benchmarks Bench Multi core Single core Latency
The fastest RAM (mainstream) averages a speed of 100%
1 of 2 slots used
8GB DIMM DDR4 2133 MHz clocked @ 1067 MHz
MC Read 14.6
MC Write 14.1
MC Mixed 13.5
40% 14.1 GB/s
SC Read 12.9
SC Write 12.4
SC Mixed 13.7
37% 13 GB/s
Latency 95.4
42% 95.4 ns
1 of 2 slots used
8GB DIMM DDR4 clocked @ 2133 MHz
MC Read 14.2
MC Write 13.2
MC Mixed 10.5
36% 12.6 GB/s
SC Read 11.5
SC Write 12.5
SC Mixed 11.4
34% 11.8 GB/s
Latency 65.3
61% 65.3 ns
1 of 2 slots used
8GB DIMM DDR4 clocked @ 2133 MHz
MC Read 14.1
MC Write 12.7
MC Mixed 10.8
36% 12.5 GB/s
SC Read 11.1
SC Write 12.8
SC Mixed 11.2
33% 11.7 GB/s
Latency 65.3
61% 65.3 ns
1 of 2 slots used
8GB DIMM DDR4 clocked @ 2133 MHz
MC Read 12.6
MC Write 9.9
MC Mixed 8.8
30% 10.4 GB/s
SC Read 3.8
SC Write 9.7
SC Mixed 7.3
20% 6.93 GB/s
Latency 69.1
58% 69.1 ns
207 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 24,270,123 RAM Kits tested.

Typical CM4X8GF2133C13K4 1x8GB Builds (Compare 172 builds) See popular component choices, score breakdowns and rankings.
Gaming 34%
Sail boat
Desktop 59%
Workstation 45%

System: PC PRIME A320M-K

EDIT WITH CUSTOM PC BUILDER Value: 68% - Good Total price: $302

Popular CM4X8GF2133C13K4 1x8GB systems:

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How it works

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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.
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Memory Kit Rankings (Price vs Performance) February 2020 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.


110 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 i7-9700K $356Nvidia RTX 2060 $330Samsung 850 Pro 512GB $249
Seagate Barracuda 1TB (2016) $37Corsair Vengeance LPX DDR4 3200 C16 2x8GB $82SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $38Corsair Vengeance LPX DDR4 3000 C15 2x8GB $73SanDisk Extreme 32GB $46
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $683SanDisk Extreme 16GB $24
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