CorsairCMK16GX4M2A2133C13(|R)
CorsairCMD16GX4M2B3000C15
Real World Speed
Performance profile from 15,293 user samples
11,601 User Benchmarks
Best Bench: 81% @ 3000 MHz
Worst Bench: 42% @ 2133 MHz
Poor: 42% Great: 81%
SPEED RANK: 72nd / 104
3,692 User Benchmarks
Best Bench: 106% @ 3400 MHz
Worst Bench: 64% @ 2133 MHz
Poor: 64% Great: 106%
SPEED RANK: 29th / 104
Effective Speed
Effective RAM Speed
70.3 % 87.3 % Faster effective speed.
+24%
MC Read
Avg. 16 Core Read Bench
26 GB/s 33.1 GB/s Faster multi-core read.
+27%
MC Write
Avg. 16 Core Write Bench
26.7 GB/s 33.2 GB/s Faster multi-core write.
+24%
MC Mixed
Avg. 16 Core Mixed IO Bench
22.2 GB/s 26.9 GB/s Faster multi-core mixed.
+21%
MC Read
16 Core Read Bench
30.7 GB/s 41.1 GB/s Much faster multi-core read.
+34%
MC Write
16 Core Write Bench
30.4 GB/s 41.6 GB/s Much faster multi-core write.
+37%
MC Mixed
16 Core Mixed IO Bench
26.9 GB/s 34.2 GB/s Faster multi-core mixed.
+27%
Market Share
Based on 8,255,070 RAM Kits tested.
Market Share
Market Share (trailing 30 days)
0.16 % Much higher market share.
+45%
0.11 %
Value
Value For Money
70.3 % Slightly better value.
+12%
62.7 %
User Rating
UBM User Rating
62 % Slightly more popular.
+13%
55 %
Price
Price (score)
$168 Cheaper.
+20%
$210
Age
Newest
43 Months 33 Months More recent.
+23%
SC Read
Avg. 1 Core Read Bench
16.2 GB/s 19.9 GB/s Faster single-core read.
+23%
SC Write
Avg. 1 Core Write Bench
25.8 GB/s 33.5 GB/s Faster single-core write.
+30%
SC Mixed
Avg. 1 Core Mixed IO Bench
21.2 GB/s 26.3 GB/s Faster single-core mixed.
+24%
SC Read
1 Core Read Bench
19.9 GB/s 24.8 GB/s Faster single-core read.
+25%
SC Write
1 Core Write Bench
30.9 GB/s 43.6 GB/s Much faster single-core write.
+41%
SC Mixed
1 Core Mixed IO Bench
25.4 GB/s 32.3 GB/s Faster single-core mixed.
+27%
Latency
Avg. Physical RAM Latency
74.3 ns 64.8 ns Slightly lower access latency.
+13%
Latency
Physical RAM Latency
59.6 ns 48.4 ns Lower access latency.
+19%
Capacity
Capacity
16GB 16GB
Memory Kit Rankings (Price vs Performance) May 2018 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.
  • Fastest real world speed - Real World Speed measures performance for typical consumers.
  • Best value for money - Value for money is based on real world performance and price per GB.
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 (UBM).
  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
  • - Drive tests include: read, write and mixed IO.
  • - Checks include: 4k Align, NCQ, TRIM, SATA, USB & S.M.A.R.T.
  • - 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 highest voted in class.
  • - Find the best upgrades.
  • - Share your opinion by voting.

 Frequently Asked Questions

 Best User Rated

The Best.
CPUGPUSSD
AMD Ryzen 5 1600 $169Nvidia GTX 1070 $447Samsung 850 Evo 250GB $95
Intel Core i7-8700K $325Nvidia GTX 1060-6GB $295Samsung 850 Evo 500GB $137
Intel Core i7-7700K $290AMD RX 480 $330Samsung 850 Pro 256GB $163
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $180SanDisk Extreme 64GB $41
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $960SanDisk Extreme 32GB $46
Seagate Barracuda 2TB (2016) $60HyperX Fury DDR4 2133 C14 2x8GB $226SanDisk Extreme 16GB $20
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