Average Bench: 43.7% (100th of 113)

Based on 1,023 user benchmarks.  Model: Crucial CT8G4DFS8266.M8FD 1x8GB

Below average average bench

The Crucial CT8G4DFS8266.M8FD 1x8GB averaged 56.2% 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 83.6ns
Avg. 16 Core Read Bench 16.7GB/s

Very good consistency

The range of scores (95th - 5th percentile) for the Crucial CT8G4DFS8266.M8FD 1x8GB is just 17.9%. This is a relatively narrow range which indicates that the Crucial CT8G4DFS8266.M8FD 1x8GB performs reasonably consistently under varying real world conditions.


Avg. 16 Core Mixed IO Bench 12.7GB/s
Avg. 1 Core Mixed IO Bench 13.2GB/s

Average Bench

(Based on 1,023 samples)
Min Avg Max
12.5 MC Read 16.7 19.2
10.9 MC Write 14.9 18.1
9.6 MC Mixed 12.7 16.1
42.2% 14.8 GB/s
Min Avg Max
8.59 SC Read 13.4 18.2
8 SC Write 14.3 18.7
8.85 SC Mixed 13.2 16.9
39.1% 13.7 GB/s
Min Avg Max
60.9 Latency 83.6 124
47.8% 83.6 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 clocked @ 2666 MHz
MC Read 19.5
MC Write 18.1
MC Mixed 16.2
51% 17.9 GB/s
SC Read 18.3
SC Write 18.7
SC Mixed 17
51% 18 GB/s
Latency 88.3
45% 88.3 ns
1,023 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 45,839,380 RAM Kits tested.

Typical CT8G4DFS8266.M8FD 1x8GB Builds (Compare 9,398 builds) See popular component choices, score breakdowns and rankings.
Gaming 38%
Jet ski
Desktop 79%
Workstation 35%
Sail boat

Motherboard: MSI A320M-A PRO (MS-7C51)

EDIT WITH CUSTOM PC BUILDER Value: 80% - Very good Total price: $342

Popular CT8G4DFS8266.M8FD 1x8GB 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 860 Evo 250GB $52
Intel Core i7-11700K $380Nvidia GTX 1660S (Super) $240Samsung 850 Evo 120GB $183
Seagate Barracuda 1TB (2016) $40Corsair Vengeance LPX DDR4 3200 C16 2x8GB $74SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $35Corsair Vengeance LPX DDR4 3000 C15 2x8GB $77SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $72G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Ultra Fit 32GB $16
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