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Micron
CorsairCMK16GX4M2A2666C16(|R)
▲ 500 ▼
  

Release date ≤ Q2 2016.

VS
▲ 55216 ▼

Release date: Q4 2014.

Effective Speed 
+12%
Real World Speed
Performance profile from 131,044 user samples
Benchmark your RAM here
37 User Benchmarks
Best Bench: 104% @ 1866 MHz
Worst Bench: 41%
Poor: 41% Great: 104%
SPEED RANK: 101st / 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 		68.3 % 76.7 % Faster effective speed.
+12%
Average Score 
+3%
MC Read
Avg. 16 Core Read Bench 		30.1 GB/s +1% 29.8 GB/s
MC Write
Avg. 16 Core Write Bench 		25.4 GB/s 28 GB/s Faster multi-core write.
+10%
MC Mixed
Avg. 16 Core Mixed IO Bench 		24.2 GB/s 24.3 GB/s +0%
Peak Score 
+26%
MC Read
16 Core Read Bench 		51.2 GB/s Much faster multi-core read.
+37% 		37.3 GB/s
MC Write
16 Core Write Bench 		42.8 GB/s Faster multi-core write.
+19% 		36 GB/s
MC Mixed
16 Core Mixed IO Bench 		38.1 GB/s Faster multi-core mixed.
+22% 		31.3 GB/s
Value & Sentiment 
+∞%
Market Share
Based on 68,280,416 RAM Kits tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0 % 0.34 % Insanely higher market share.
+∞%
User Rating
UBM User Rating 		50 % 55 % Slightly more popular.
+10%
Nice To Haves 
+70%
Age
Newest 		103+ Months More recent.
+15% 		121 Months
SC Read
Avg. 1 Core Read Bench 		13.1 GB/s 18.3 GB/s Much faster single-core read.
+40%
SC Write
Avg. 1 Core Write Bench 		8.82 GB/s 27.6 GB/s Hugely faster single-core write.
+213%
SC Mixed
Avg. 1 Core Mixed IO Bench 		9.44 GB/s 23.3 GB/s Hugely faster single-core mixed.
+147%
SC Read
1 Core Read Bench 		15.7 GB/s 25.1 GB/s Much faster single-core read.
+60%
SC Write
1 Core Write Bench 		17.9 GB/s 37.4 GB/s Hugely faster single-core write.
+109%
SC Mixed
1 Core Mixed IO Bench 		19.3 GB/s 29.2 GB/s Much faster single-core mixed.
+51%
Latency
Avg. Physical RAM Latency 		89.2 ns 76.9 ns Lower access latency.
+14%
Latency
Physical RAM Latency 		68.7 ns 58.1 ns Lower access latency.
+15%
Specifications 
Capacity
Capacity 		64GB 16GB
User Builds 
37
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
  • - RAM tests include: single/multi core bandwidth and latency
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  • - 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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