CorsairCMK32GX4M4A2666C16(|B|R)
CorsairCMK16GX4M2A2666C16(|R)
Real World Speed
Performance profile from 7,276 user samples
1,209 User Benchmarks
Best Bench: 122% @ 1333 MHz
Worst Bench: 70% @ 2667 MHz
Poor: 70% Great: 122%
SPEED RANK: 14th / 70
6,067 User Benchmarks
Best Bench: 95% @ 1467 MHz
Worst Bench: 41% @ 800 MHz
Poor: 41% Great: 95%
SPEED RANK: 36th / 70
Effective Speed
Effective RAM Speed
92.9 % Faster effective speed.
+21%
76.7 % -21%
MC Read
Avg. 16 Core Read Bench
34.6 GB/s Faster multi-core read.
+19%
29 GB/s -19%
MC Write
Avg. 16 Core Write Bench
36.8 GB/s Faster multi-core write.
+28%
28.8 GB/s -28%
MC Mixed
Avg. 16 Core Mixed IO Bench
31.8 GB/s Faster multi-core mixed.
+30%
24.5 GB/s -30%
MC Read
16 Core Read Bench
47 GB/s Faster multi-core read.
+24%
37.9 GB/s -24%
MC Write
16 Core Write Bench
55 GB/s Much faster multi-core write.
+54%
35.8 GB/s -54%
MC Mixed
16 Core Mixed IO Bench
45.6 GB/s Much faster multi-core mixed.
+42%
32.2 GB/s -42%
Market Share
Based on 4,497,710 RAM Kits tested.
Market Share
Market Share (trailing 30 days)
0.06 % -767% 0.52 % Hugely higher market share.
+767%
Value
Value For Money
48.6 % Slightly better value.
+13%
43 % -13%
User Rating
UBM User Rating
53 % -11% 59 % Slightly more popular.
+11%
Price
Price (score)
$279 -49% $143 Much cheaper.
+49%
Age
Newest
36 Months -3% 35 Months +3%
SC Read
Avg. 1 Core Read Bench
17.2 GB/s -2% 17.5 GB/s +2%
SC Write
Avg. 1 Core Write Bench
28.1 GB/s -1% 28.3 GB/s +1%
SC Mixed
Avg. 1 Core Mixed IO Bench
23.9 GB/s Slightly faster single-core mixed.
+5%
22.7 GB/s -5%
SC Read
1 Core Read Bench
21.8 GB/s -1% 22.1 GB/s +1%
SC Write
1 Core Write Bench
39.7 GB/s Slightly faster single-core write.
+7%
37.2 GB/s -7%
SC Mixed
1 Core Mixed IO Bench
31.1 GB/s Slightly faster single-core mixed.
+11%
28 GB/s -11%
Latency
Avg. Physical RAM Latency
67 ns Slightly lower access latency.
+11%
75 ns -11%
Latency
Physical RAM Latency
56.8 ns 0% 56.8 ns 0%
Capacity
Capacity
32GB 16GB
Memory Kit Rankings (Price vs Performance) September 2017 RAM Rankings.

Welcome to our DDR4 Memory Kit comparison. We calculate effective RAM speed which measures performance for typical desktop users. Effective speed is adjusted by cost per GB to yield value for money. Calculated values don't always tell the whole picture so we check them against thousands of individual user ratings. The customizable table below combines these factors and more to bring you the definitive list of top Memory Kits. Share your opinion by voting. [RAMPro]

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
Intel Core i7-7700K $313Nvidia GTX 1070 $400Samsung 850 Evo 250GB $88
AMD Ryzen 7 1700 $270AMD RX 480 $350Samsung 850 Pro 256GB $119
Intel Core i5-7600K $230Nvidia GTX 1060-6GB $265Samsung 850 Evo 500GB $150
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45G.SKILL Trident Z DDR4 3200 C14 4x16GB $724SanDisk Extreme 64GB $33
Seagate Barracuda 3TB (2016) $77Corsair Vengeance LPX DDR4 3000 C15 2x8GB $152SanDisk Extreme 32GB $22
Seagate Barracuda 7200.14 1TB $57HyperX Fury DDR4 2133 C14 2x8GB $144SanDisk Extreme 16GB $20
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