Average Bench: 47.3% (99th of 113)

Based on 798 user benchmarks.  Model: Crucial CT16G4DFD8266.C16FD1 1x16GB

Below average average bench

The Crucial CT16G4DFD8266.C16FD1 1x16GB averaged 52.7% 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. 16 Core Read Bench 17.3GB/s
Avg. 1 Core Write Bench 16.7GB/s

Very good consistency

The range of scores (95th - 5th percentile) for the Crucial CT16G4DFD8266.C16FD1 1x16GB is just 15.5%. This is a relatively narrow range which indicates that the Crucial CT16G4DFD8266.C16FD1 1x16GB performs reasonably consistently under varying real world conditions.


Avg. 16 Core Mixed IO Bench 14.4GB/s
Avg. 1 Core Read Bench 14.7GB/s

Average Bench

(Based on 798 samples)
Min Avg Max
13.9 MC Read 17.3 19.6
12.6 MC Write 16.2 18.2
11.7 MC Mixed 14.4 17.5
45.6% 16 GB/s
Min Avg Max
8.54 SC Read 14.7 19.3
10.5 SC Write 16.7 19.8
9.04 SC Mixed 15.5 18.8
44.7% 15.7 GB/s
Min Avg Max
62.5 Latency 85 122
47% 85 ns
User Benchmarks Bench Multi core Single core Latency
The fastest RAM (mainstream) averages a speed of 100%
1 of 4 slots used
16GB DIMM DDR4 clocked @ 2666 MHz
MC Read 19
MC Write 18
MC Mixed 18
52% 18.3 GB/s
SC Read 19.3
SC Write 19.7
SC Mixed 18.3
55% 19.1 GB/s
Latency 92.2
43% 92.2 ns
1 of 2 slots used
16GB DIMM DDR4 clocked @ 2666 MHz
MC Read 16.6
MC Write 16.5
MC Mixed 14.1
45% 15.7 GB/s
SC Read 13.8
SC Write 15.7
SC Mixed 16.4
44% 15.3 GB/s
Latency 69.7
57% 69.7 ns
798 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 43,327,348 RAM Kits tested.

Typical CT16G4DFD8266.C16FD1 1x16GB Builds (Compare 35,854 builds) See popular component choices, score breakdowns and rankings.
Gaming 27%
Desktop 79%
Workstation 25%

Motherboard: Asus PRIME A320M-K - $65

EDIT WITH CUSTOM PC BUILDER Value: 63% - Good Total price: $438

Popular CT16G4DFD8266.C16FD1 1x16GB 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.
  • - 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.
  • - Share your opinion by voting.
Memory Kit Rankings (Price vs Performance) June 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 i5-11400F $220Nvidia RTX 3070 $500Crucial MX500 250GB $45
Intel Core i5-11600K $259Nvidia RTX 3060-Ti $400Samsung 850 Evo 120GB $78
Intel Core i7-10700K $285Nvidia RTX 3080 $700Samsung 860 Evo 250GB $52
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3200 C16 2x8GB $79SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $35Corsair Vengeance LPX DDR4 3000 C15 2x8GB $94SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $100G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Ultra Fit 32GB $16
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