Today's hottest
Amazon Ebay
deals
TEST
YOUR RAM
ADD TO PC
BUILD

Corsair

CM4X16GE2666C18S4 1x16GB

▲ 500 ▼

Release date ≈ Q2 2019.

Average Bench: 45.7% (119th of 132)

Based on 494 user benchmarks.  Model: Corsair CM4X16GE2666C18S4 1x16GB
Poor: 39%Average: 45.7% Great: 50%

Popular builds with this RAM

Below average average bench

The Corsair CM4X16GE2666C18S4 1x16GB averaged 54.2% 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.

Strengths

Avg. Physical RAM Latency 83ns
Avg. 16 Core Read Bench 16.5GB/s

Very good consistency

The range of scores (95th - 5th percentile) for the Corsair CM4X16GE2666C18S4 1x16GB is just 11%. This is a relatively narrow range which indicates that the Corsair CM4X16GE2666C18S4 1x16GB performs reasonably consistently under varying real world conditions.

Weaknesses

Avg. 1 Core Read Bench 13.4GB/s
Avg. 16 Core Mixed IO Bench 13.6GB/s

Average Bench

(Based on 494 samples)
Rank 11945.7%
Min Avg Max
13.8 MC Read 16.5 18
14.3 MC Write 16.2 17.4
11.8 MC Mixed 13.6 14.8
44.1% 15.4 GB/s
Min Avg Max
8.08 SC Read 13.4 16.3
10.1 SC Write 16.2 18.7
8.8 SC Mixed 14.7 17.7
42.1% 14.8 GB/s
Min Avg Max
60.9 Latency 83 132
48.2% 83 ns
User Benchmarks BenchMulti coreSingle coreLatency
The fastest RAM (mainstream) averages a speed of 100%
1 of 2 slots used
16GB SODIMM DDR4 clocked @ 2667 MHz
48% Average
MC Read 17.3
MC Write 16.6
MC Mixed 13.9
46% 15.9 GB/s
SC Read 13.8
SC Write 17.7
SC Mixed 16.8
46% 16.1 GB/s
Latency 67.7
59% 67.7 ns
1 of 4 slots used
16GB SODIMM DDR4 clocked @ 2667 MHz
46.4% Average
MC Read 16.9
MC Write 17
MC Mixed 14
46% 16 GB/s
SC Read 11.6
SC Write 16.6
SC Mixed 14.1
40% 14.1 GB/s
Latency 81.1
49% 81.1 ns
1 of 2 slots used
16GB SODIMM DDR4 clocked @ 2667 MHz
42.9% Average
MC Read 15.7
MC Write 15.1
MC Mixed 13.1
42% 14.6 GB/s
SC Read 14.7
SC Write 17
SC Mixed 14.2
44% 15.3 GB/s
Latency 114
35% 114 ns
1 of 2 slots used
16GB SODIMM DDR4 clocked @ 2667 MHz
41.1% Average
MC Read 14.8
MC Write 14.3
MC Mixed 12.4
40% 13.8 GB/s
SC Read 12
SC Write 14.9
SC Mixed 14.3
39% 13.7 GB/s
Latency 88.8
45% 88.8 ns
1 of 2 slots used
16GB SODIMM DDR4 clocked @ 2667 MHz
39.6% Below average
MC Read 13.9
MC Write 15.2
MC Mixed 12.5
40% 13.9 GB/s
SC Read 12.3
SC Write 14.3
SC Mixed 11.7
36% 12.8 GB/s
Latency 130
31% 130 ns
1 of 2 slots used
16GB SODIMM DDR4 clocked @ 2667 MHz
38% Below average
MC Read 14.9
MC Write 13.3
MC Mixed 12.4
39% 13.5 GB/s
SC Read 9.4
SC Write 11.8
SC Mixed 8.8
29% 10 GB/s
Latency 107
37% 107 ns
1 of 2 slots used
16GB SODIMM DDR4 clocked @ 2667 MHz
38% Below average
MC Read 14.4
MC Write 13.7
MC Mixed 11.6
38% 13.2 GB/s
SC Read 10.9
SC Write 12.3
SC Mixed 13.7
35% 12.3 GB/s
Latency 129
31% 129 ns
494 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 68,278,116 RAM Kits tested

Custom PC Builder (Start a new build) Build your perfect PC: compare component prices, popularity, speed and value for money

CHOOSE A COMPONENT:

CPU GPU SSD HDD RAM MBD
Typical CM4X16GE2666C18S4 1x16GB Builds (Compare 694 builds) See popular component choices, score breakdowns and rankings
Gaming
Gaming 10%
Tree trunk
Desktop
Desktop 77%
Battleship
Workstation
Workstation 10%
Tree trunk

System: Standard Standard

CPU
Core i7-10875HIntelBench 79%, 35,361 samples253x
Core i7-10750HIntelBench 77%, 206,796 samples100x
Core i7-11800HIntelBench 88%, 79,827 samples83x
GPU
UHD GraphicsIntelBench 5%, 187,969 samples145x
RTX 2060 (Mobile)NvidiaBench 71%, 119,687 samples94x
RTX 3060 (Laptop)NvidiaBench 90%, 102,706 samples64x
SSD
970 Evo Plus NVMe PCIe M.2 1TBSamsung  $69Bench 310%, 455,997 samples48x
PCS PCIe M.2 SSD 1TB1TBBench 187%, 931 samples41x
660p NVMe PCIe M.2 1TBIntel  $50Bench 191%, 163,917 samples31x
RAM
CM4X16GE2666C18S4 1x16GBCorsairBench 46%, 494 samples41x
EDIT WITH CUSTOM PC BUILDER Value: 150% - Outstanding Total price: $69

Popular CM4X16GE2666C18S4 1x16GB systems:

How Fast Is Your RAM? (Bench your build) Size up your PC in less than a minute

Welcome to our 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 value for money upgrades.

UserBenchmark of the month

Gaming Desktop ProGaming

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) November 2024 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.

 Comments

Added n/a ago.
Your
opinion?
▲Like ▼Dislike
Ready to retire
Age: 5 years

Speed Comparisons

vs Corsair Vengeance LPX DDR4 3200 C16 2x8GB
vs Corsair Vengeance LPX DDR4 3000 C15 2x8GB
vs G.SKILL Trident Z DDR4 3200 C14 4x16GB
vs HyperX Fury DDR4 2133 C14 2x8GB
vs G.SKILL Trident Z DDR4 3600 C16 2x8GB
vs Corsair Vengeance LPX DDR4 2666 C16 2x8GB
vs G.SKILL Ripjaws 4 DDR4 2400 C14 8x16GB
vs Corsair Vengeance LPX DDR4 2133 C13 2x8GB
vs G.SKILL Trident Z DDR4 3200 C16 2x8GB

132 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

Computer Components FAQ
What is the UBM value for money rating?
What is UBM Effective Speed?
Thunderbolt speed?
Are USB 3.0 cables different?
USB 3.0 vs 2.0 speed difference?
Why buy USB 3.0 today?
USB 3.0 / 4.0 release dates and max speeds?
Graphics Cards
How to force Optimus or Switchable discrete GPUs?
What are the UBM DX11 GPU tests?
What are the UBM DX10 GPU tests?
What are the UBM DX09 GPU tests?
What is the Splatting GPU benchmark?
What is the Gravity (NBody) GPU benchmark?
Memory Kits
What is the RAM value for money rating?
What is the effective RAM speed index?
What is the system memory latency ladder?
ALL FAQs »

 Best User Rated
Why does UserBenchmark have a bad reputation on reddit?
Marketers operate thousands of reddit accounts. Our benchmarks expose their spiel so they attack our reputation.
Why don’t PC brands endorse UserBenchmark?
Brands make boatloads on flagships like the 4090 and 14900KS. We help users get similar real-world performance for less money.
Why don’t youtubers promote UserBenchmark?
We don't pay youtubers, so they don't praise us. Moreover, our data obstructs youtubers who promote overpriced or inferior products.
Why does UserBenchmark have negative trustpilot reviews?
The 200+ trustpilot reviews are mostly written by virgin marketing accounts. Real users don't give a monkey's about big brands.
Why is UserBenchmark the gold standard for users?
Instead of pursuing brands for sponsorship, we've spent 13 years publishing real-world data for users.
The Best
CPUGPUSSD
Intel Core i5-12600K $159Nvidia RTX 4060 $295WD Black SN850X M.2 2TB $135
Intel Core i5-13600K $210Nvidia RTX 4060-Ti $380WD Black SN850X M.2 1TB $82
Intel Core i5-12400F $111Nvidia RTX 4070 $500Crucial T700 M.2 4TB $370
Today's hottest
Amazon Ebay
deals
If you buy something via a price link, UserBenchmark may earn a commission
Build Test EFps
Can You Run It?
►
YouTube
*NEW*
About  •  User Guide  •  FAQs  •  Email  •  Privacy  •  Developer  •  YouTube Feedback