Average Bench: 78.6% (55th of 108)

Based on 659 user benchmarks.  Model: Corsair CM4X8GF2666C16K4 2x8GB

Good average bench

The Corsair CM4X8GF2666C16K4 2x8GB averaged 21.3% lower than the peak scores attained by the group leaders. This is an excellent result which ranks the Corsair CM4X8GF2666C16K4 2x8GB near the top of the comparison list.

Strengths

Avg. 16 Core Read Bench 30.7GB/s
Avg. 16 Core Write Bench 29.5GB/s

Above average consistency

The range of scores (95th - 5th percentile) for the Corsair CM4X8GF2666C16K4 2x8GB is 34.5%. This is a relatively narrow range which indicates that the Corsair CM4X8GF2666C16K4 2x8GB performs reasonably consistently under varying real world conditions.

Weaknesses

Avg. 1 Core Read Bench 18.2GB/s
Avg. Physical RAM Latency 67.6ns
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Average Bench

(Based on 659 samples)
Min Avg Max
21.5 MC Read 30.7 37
20.6 MC Write 29.5 34.9
18.5 MC Mixed 23.5 30.7
79.7% 27.9 GB/s
Min Avg Max
11.2 SC Read 18.2 23.4
18.2 SC Write 28.4 35.5
13.7 SC Mixed 23.7 27.7
66.9% 23.4 GB/s
Min Avg Max
55.5 Latency 67.6 94
59.2% 67.6 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 @ 2667 MHz
MC Read 33.2
MC Write 34.9
MC Mixed 24.5
88% 30.9 GB/s
SC Read 19.4
SC Write 32.6
SC Mixed 27.7
76% 26.6 GB/s
Latency 59
68% 59 ns
2 of 4 slots used
16GB DIMM DDR4 clocked @ 2666 MHz
MC Read 34
MC Write 33.4
MC Mixed 23.4
86% 30.3 GB/s
SC Read 18.5
SC Write 26.5
SC Mixed 25.1
67% 23.4 GB/s
Latency 57.5
70% 57.5 ns
2 of 4 slots used
16GB DIMM DDR4 clocked @ 2667 MHz
MC Read 32.3
MC Write 31.9
MC Mixed 23.8
84% 29.3 GB/s
SC Read 15.2
SC Write 24.6
SC Mixed 23.7
60% 21.2 GB/s
Latency 61
66% 61 ns
2 of 4 slots used
16GB DIMM DDR4 clocked @ 2667 MHz
MC Read 31.1
MC Write 28.9
MC Mixed 23.7
80% 27.9 GB/s
SC Read 19
SC Write 30.4
SC Mixed 26.2
72% 25.2 GB/s
Latency 60.8
66% 60.8 ns
2 of 4 slots used
16GB DIMM DDR4 clocked @ 2667 MHz
MC Read 30.8
MC Write 30.7
MC Mixed 22.7
80% 28.1 GB/s
SC Read 18.2
SC Write 29.7
SC Mixed 25.4
70% 24.4 GB/s
Latency 61.5
65% 61.5 ns
2 of 4 slots used
16GB DIMM DDR4 clocked @ 2400 MHz
MC Read 28.9
MC Write 29.4
MC Mixed 21.9
76% 26.7 GB/s
SC Read 18.6
SC Write 30.8
SC Mixed 24.7
71% 24.7 GB/s
Latency 61
66% 61 ns
2 of 8 slots used
16GB DIMM DDR4 2666 MHz clocked @ 2667 MHz
MC Read 32.2
MC Write 26.7
MC Mixed 23.4
78% 27.4 GB/s
SC Read 13.2
SC Write 17.7
SC Mixed 18.5
47% 16.5 GB/s
Latency 67.3
59% 67.3 ns
659 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 21,998,627 RAM Kits tested.

Typical CM4X8GF2666C16K4 2x8GB Builds (Compare 921 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 110%
UFO
Desktop
Desktop 91%
Nuclear submarine
Workstation
Workstation 80%
Battleship

System: PC Intel Z370

EDIT WITH CUSTOM PC BUILDER Value: 53% - Above average Total price: $1,228

Popular CM4X8GF2666C16K4 2x8GB systems:

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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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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.
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  • - Share your opinion by voting.
Memory Kit Rankings (Price vs Performance) December 2019 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]

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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.

 Comments

108 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.
CPUGPUSSD
Intel Core i5-9400F $145Nvidia GTX 1660S (Super) $260Crucial MX500 250GB $45
Intel Core i5-9600K $200AMD RX 590 $180Samsung 850 Evo 120GB $58
Intel Core i7-9700K $369Nvidia GTX 1650S (Super) $160Samsung 850 Pro 512GB $230
HDDRAMUSB
Seagate Barracuda 1TB (2016) $35Corsair Vengeance LPX DDR4 3200 C16 2x8GB $65SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $38Corsair Vengeance LPX DDR4 3000 C15 2x8GB $63SanDisk Extreme 32GB $46
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $613SanDisk Extreme 16GB $24
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