TEST
YOUR RAM
ADD TO PC
BUILD

Corsair CMK16GX4M2A2666C16(|R)

Vengeance LPX DDR4 2666 C16 2x8GB

Average Bench: 78.2% (58th of 108)

Based on 50,756 user benchmarks.  Model: Corsair Vengeance LPX CMK16GX4M2A2666C16 2x8GB
Poor: 54%Average: 78.2% Great: 96%

Popular builds with this RAM

Good average bench

The Corsair Vengeance LPX DDR4 2666 C16 2x8GB averaged 21.8% lower than the peak scores attained by the group leaders. This is an excellent result which ranks the Corsair Vengeance LPX DDR4 2666 C16 2x8GB near the top of the comparison list.

Strengths

Avg. 16 Core Read Bench 30.1GB/s
Avg. 16 Core Write Bench 28.9GB/s

Average consistency

The range of scores (95th - 5th percentile) for the Corsair Vengeance LPX DDR4 2666 C16 2x8GB is 42.4%. This is a relatively wide range which indicates that the Corsair Vengeance LPX DDR4 2666 C16 2x8GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. 1 Core Read Bench 18.3GB/s
Avg. Physical RAM Latency 71.4ns
ADVERTISEMENT

Average Bench

(Based on 50,756 samples)
Rank 5878.2%
Min Avg Max
18.4 MC Read 30.1 38
18 MC Write 28.9 36.1
17.8 MC Mixed 24.4 32.1
79.5% 27.8 GB/s
Min Avg Max
12.3 SC Read 18.3 23.7
16.8 SC Write 28.1 37.1
15.5 SC Mixed 23.6 28.7
66.7% 23.3 GB/s
Min Avg Max
55.6 Latency 71.4 98.5
56% 71.4 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
90.3% Outstanding
MC Read 35.8
MC Write 34
MC Mixed 25.5
91% 31.8 GB/s
SC Read 20.4
SC Write 35.9
SC Mixed 28.7
81% 28.3 GB/s
Latency 57.9
69% 57.9 ns
2 of 4 slots used
16GB DIMM DDR4 clocked @ 2667 MHz
82.3% Excellent
MC Read 32.6
MC Write 30.4
MC Mixed 22.6
82% 28.5 GB/s
SC Read 20.2
SC Write 31.6
SC Mixed 27.2
75% 26.3 GB/s
Latency 55.1
73% 55.1 ns
2 of 2 slots used
16GB DIMM DDR4 clocked @ 2400 MHz
74.5% Very good
MC Read 28.5
MC Write 29
MC Mixed 22.5
76% 26.7 GB/s
SC Read 18.2
SC Write 18.9
SC Mixed 24.5
59% 20.5 GB/s
Latency 65.2
61% 65.2 ns
2 of 4 slots used
16GB DIMM DDR4 clocked @ 2133 MHz
70.7% Very good
MC Read 27
MC Write 26.5
MC Mixed 20.8
71% 24.8 GB/s
SC Read 17.6
SC Write 26.7
SC Mixed 22.1
63% 22.1 GB/s
Latency 68.2
59% 68.2 ns
50,756 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 21,181,867 RAM Kits tested.

 Prices

Approx. $79 @ launch in Oct '14
AmazonUS CMK16GX4M2A2666C16 $7411 mins
EbayUS CMK16GX4M2A2666C16 $7419 mins
OutletPCUS CMK16GX4M2A2666C16 $761 day
OutletPCUS CMK16GX4M2A2666C16R $761 day
AmazonUS CMK16GX4M2A2666C16R $8311 mins
EbayUS CMK16GX4M2A2666C16R $8317 mins
Send price feedback
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 Vengeance LPX DDR4 2666 C16 2x8GB Builds (Compare 32,733 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 74%
Battleship
Desktop
Desktop 80%
Battleship
Workstation
Workstation 56%
Gunboat

Motherboard: Asus Z170 PRO GAMING - $228

CPU
Core i7-6700KIntel  $275Bench 81%, 350,102 samples14,389x
Core i5-6600KIntel  $210Bench 77%, 203,257 samples10,386x
Core i7-6700Intel  $318Bench 69%, 131,445 samples2,086x
GPU
GTX 1070Nvidia  $369Bench 77%, 689,835 samples6,319x
GTX 1080Nvidia  $528Bench 101%, 552,082 samples4,140x
GTX 970Nvidia  $399Bench 50%, 501,744 samples3,898x
SSD
850 Evo 250GBSamsung  $70Bench 106%, 519,572 samples3,804x
850 Evo 500GBSamsung  $107Bench 112%, 382,161 samples3,088x
960 Evo NVMe PCIe M.2 250GBSamsung  $100Bench 199%, 146,390 samples749x
RAM
Vengeance LPX DDR4 2666 C16 2x8GBCorsair  $74Bench 78%, 50,756 samples1x
EDIT WITH CUSTOM PC BUILDER Value: 61% - Good Total price: $1,016

Popular Vengeance LPX DDR4 2666 C16 2x8GB 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

Gaming Desktop Workstation

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) November 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]

ADVERTISEMENT

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

RAMPro
Avatar level
735

Official site www.corsair.com/...

Added 3 years ago.
USA-User
Avatar level
5,866

Liked (edit your comment) Add link

12 months ago.

gangsteras
Avatar level
6

Excellent

12 months ago.

Just great and i rock it !!!

BloodK1nG
Avatar level
4

Excellent

21 months ago.

perfect

Titaniumbear75
Avatar level
4

Average

10 months ago.

Had to RMA a stick due to constant BSOD and failed memtest86. Still experienced rare BSOD with new ram due to the failed stick corrupting windows system files, had to reinstall windows to fix the issue.

Your
opinion?
▲Like ▼Dislike
Ready to retire
Age: 5 years

Speed Comparisons

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

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

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
The Best.
CPUGPUSSD
Intel Core i5-9400F $148Nvidia GTX 1660S (Super) $240Crucial MX500 250GB $45
Intel Core i5-9600K $210AMD RX 580 $170Samsung 850 Evo 120GB $150
Intel Core i7-9700K $334Nvidia GTX 1660-Ti $260Samsung 860 Evo 250GB $51
HDDRAMUSB
Seagate Barracuda 1TB (2016) $39Corsair Vengeance LPX DDR4 3000 C15 2x8GB $65SanDisk Extreme 64GB $88
WD Blue 1TB (2012) $40G.SKILL Trident Z DDR4 3200 C14 4x16GB $612SanDisk Extreme 32GB $48
Seagate Barracuda 3TB (2016) $85Corsair Vengeance LPX DDR4 3200 C16 2x8GB $80SanDisk Ultra Fit 32GB $14
Today's hottest
Amazon Ebay
deals
CPU GPU SSD HDD USB RAM MBD
Test your PC Build a PC
Can You Run It?
About  •  User Guide  •  FAQs  •  Email  •  Privacy  •  Developer Feedback