CorsairCMK16GX4M2B3000C15(|B|R|W)
CorsairCMK16GX4M2A2666C16(|R)
Real World Speed
Performance profile from 650,462 user samples
538,368 User Benchmarks
Best Bench: 104% @ 3466 MHz
Worst Bench: 53% @ 1067 MHz
Poor: 53% Great: 104%
SPEED RANK: 44th / 113
112,094 User Benchmarks
Best Bench: 95% @ 2133 MHz
Worst Bench: 59% @ 2133 MHz
Poor: 59% Great: 95%
SPEED RANK: 60th / 113
Effective Speed
Effective RAM Speed
83.2 % Slightly faster effective speed.
+8%
77.1 %
MC Read
Avg. 16 Core Read Bench
32.7 GB/s Slightly faster multi-core read.
+9%
30.1 GB/s
MC Write
Avg. 16 Core Write Bench
29.3 GB/s +4% 28.3 GB/s
MC Mixed
Avg. 16 Core Mixed IO Bench
27.2 GB/s Faster multi-core mixed.
+12%
24.3 GB/s
MC Read
16 Core Read Bench
41.7 GB/s Faster multi-core read.
+11%
37.6 GB/s
MC Write
16 Core Write Bench
39.7 GB/s Slightly faster multi-core write.
+9%
36.3 GB/s
MC Mixed
16 Core Mixed IO Bench
35.3 GB/s Faster multi-core mixed.
+12%
31.6 GB/s
Market Share
Based on 47,759,655 RAM Kits tested.
Market Share
Market Share (trailing 30 days)
0.99 % Hugely higher market share.
+200%
0.33 %
Value
Value For Money
89.3 % 95.4 % Slightly better value.
+7%
User Rating
UBM User Rating
61 % More popular.
+11%
55 %
Price
Price (score)
$76 $66 Cheaper.
+13%
Age
Newest
86 Months 86 Months
SC Read
Avg. 1 Core Read Bench
20.6 GB/s Faster single-core read.
+14%
18 GB/s
SC Write
Avg. 1 Core Write Bench
28.9 GB/s Slightly faster single-core write.
+5%
27.5 GB/s
SC Mixed
Avg. 1 Core Mixed IO Bench
25.6 GB/s Slightly faster single-core mixed.
+10%
23.3 GB/s
SC Read
1 Core Read Bench
27.2 GB/s Slightly faster single-core read.
+9%
25 GB/s
SC Write
1 Core Write Bench
41.7 GB/s Faster single-core write.
+11%
37.5 GB/s
SC Mixed
1 Core Mixed IO Bench
34 GB/s Faster single-core mixed.
+14%
29.7 GB/s
Latency
Avg. Physical RAM Latency
75.5 ns +1% 76.6 ns
Latency
Physical RAM Latency
52.5 ns Slightly lower access latency.
+10%
58.3 ns
Capacity
Capacity
16GB 16GB
Memory Kit Rankings (Price vs Performance) December 2021 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.
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

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.

 Frequently Asked Questions

 Best User Rated

The Best.
CPUGPUSSD
Intel Core i5-12600K $300Nvidia RTX 3060-Ti $400Crucial MX500 250GB $45
Intel Core i5-11600K $220Nvidia RTX 3070 $500Samsung 860 Evo 250GB $52
Intel Core i5-11400F $196Nvidia RTX 3080 $700Samsung 850 Evo 120GB $200
HDDRAMUSB
Seagate Barracuda 1TB (2016) $37Corsair Vengeance LPX DDR4 3200 C16 2x8GB $67SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $38Corsair Vengeance LPX DDR4 3000 C15 2x8GB $76SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $71G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Ultra Fit 32GB $16
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