CorsairCMK16GX4M2C3000C16(|B|R|W)
CorsairCMK16GX4M2A2666C16(|R)
Real World Speed
Performance profile from 53,839 user samples
3,083 User Benchmarks
Best Bench: 103% @ 1700 MHz
Worst Bench: 50% @ 1067 MHz
Poor: 50% Great: 103%
SPEED RANK: 52nd / 108
50,756 User Benchmarks
Best Bench: 96% @ 3300 MHz
Worst Bench: 54% @ 2133 MHz
Poor: 54% Great: 96%
SPEED RANK: 58th / 108
Effective Speed
Effective RAM Speed
81.7 % +5% 78.2 %
MC Read
Avg. 16 Core Read Bench
32.1 GB/s Slightly faster multi-core read.
+7%
30.1 GB/s
MC Write
Avg. 16 Core Write Bench
30.2 GB/s +4% 28.9 GB/s
MC Mixed
Avg. 16 Core Mixed IO Bench
25.2 GB/s +3% 24.4 GB/s
MC Read
16 Core Read Bench
41.6 GB/s Slightly faster multi-core read.
+9%
38 GB/s
MC Write
16 Core Write Bench
38.5 GB/s Slightly faster multi-core write.
+7%
36.1 GB/s
MC Mixed
16 Core Mixed IO Bench
33.8 GB/s Slightly faster multi-core mixed.
+5%
32.1 GB/s
Market Share
Based on 21,168,433 RAM Kits tested.
Market Share
Market Share (trailing 30 days)
0.02 % 0.41 % Insanely higher market share.
+1,950%
Value
Value For Money
51.3 % 86.2 % Much better value.
+68%
User Rating
UBM User Rating
51 % 65 % More popular.
+27%
Price
Price (score)
$130 $74 Much cheaper.
+43%
Age
Newest
26+ Months Much more recent.
+57%
61 Months
SC Read
Avg. 1 Core Read Bench
19.1 GB/s +4% 18.3 GB/s
SC Write
Avg. 1 Core Write Bench
29.4 GB/s +5% 28.1 GB/s
SC Mixed
Avg. 1 Core Mixed IO Bench
24.5 GB/s +4% 23.6 GB/s
SC Read
1 Core Read Bench
25.3 GB/s Slightly faster single-core read.
+7%
23.7 GB/s
SC Write
1 Core Write Bench
39.1 GB/s Slightly faster single-core write.
+5%
37.1 GB/s
SC Mixed
1 Core Mixed IO Bench
30.1 GB/s +5% 28.7 GB/s
Latency
Avg. Physical RAM Latency
69.7 ns +2% 71.4 ns
Latency
Physical RAM Latency
51.8 ns Slightly lower access latency.
+7%
55.6 ns
Capacity
Capacity
16GB 16GB
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]

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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.
  • - 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.

 Frequently Asked Questions

 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
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