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Micron
CorsairCMK16GX4M2A2666C16(|R)
▲ 500 ▼
  

Release date ≈ Q1 2017.

VS
▲ 55216 ▼

Release date: Q4 2014.

Effective Speed 
+23%
Real World Speed
Performance profile from 131,142 user samples
Benchmark your RAM here
135 User Benchmarks
Best Bench: 69%
Worst Bench: 52%
Poor: 52% Great: 69%
SPEED RANK: 105th / 132
131,007 User Benchmarks
Best Bench: 95% @ 3600 MHz
Worst Bench: 56% @ 2133 MHz
Poor: 56% Great: 95%
SPEED RANK: 82nd / 132
Effective Speed
Effective RAM Speed 		62.2 % 76.7 % Faster effective speed.
+23%
Average Score 
+24%
MC Read
Avg. 16 Core Read Bench 		23 GB/s 29.8 GB/s Faster multi-core read.
+30%
MC Write
Avg. 16 Core Write Bench 		23.3 GB/s 28 GB/s Faster multi-core write.
+20%
MC Mixed
Avg. 16 Core Mixed IO Bench 		19.8 GB/s 24.3 GB/s Faster multi-core mixed.
+23%
Peak Score 
+40%
MC Read
16 Core Read Bench 		25.5 GB/s 37.3 GB/s Much faster multi-core read.
+46%
MC Write
16 Core Write Bench 		27.1 GB/s 36 GB/s Much faster multi-core write.
+33%
MC Mixed
16 Core Mixed IO Bench 		22.3 GB/s 31.3 GB/s Much faster multi-core mixed.
+40%
Value & Sentiment 
+∞%
Market Share
Based on 68,196,817 RAM Kits tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0 % 0.24 % Insanely higher market share.
+∞%
User Rating
UBM User Rating 		50 % 55 % Slightly more popular.
+10%
Nice To Haves 
+19%
Age
Newest 		93+ Months More recent.
+23% 		121 Months
SC Read
Avg. 1 Core Read Bench 		14.1 GB/s 18.3 GB/s Faster single-core read.
+30%
SC Write
Avg. 1 Core Write Bench 		22.8 GB/s 27.6 GB/s Faster single-core write.
+21%
SC Mixed
Avg. 1 Core Mixed IO Bench 		19.2 GB/s 23.3 GB/s Faster single-core mixed.
+21%
SC Read
1 Core Read Bench 		18.1 GB/s 25.1 GB/s Much faster single-core read.
+39%
SC Write
1 Core Write Bench 		28.4 GB/s 37.4 GB/s Much faster single-core write.
+32%
SC Mixed
1 Core Mixed IO Bench 		23 GB/s 29.2 GB/s Faster single-core mixed.
+27%
Latency
Avg. Physical RAM Latency 		89.1 ns 76.9 ns Lower access latency.
+14%
Latency
Physical RAM Latency 		66.8 ns 58.1 ns Lower access latency.
+13%
Specifications 
Capacity
Capacity 		8GB 16GB
User Builds 
135
131,007
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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.
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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.

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  • - CPU tests include: integer, floating and string
  • - GPU tests include: six 3D game simulations
  • - Drive tests include: read, write, sustained write and mixed IO
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  • - SkillBench (space shooter) tests user input accuracy
  • - Reports are generated and presented on userbenchmark.com
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 Frequently Asked Questions

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Brands make boatloads on flagships like the 4090 and 14900KS. We help users get similar real-world performance for less money.
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The Best
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