CorsairCMK16GX4M2B3000C15(|B|R)
CorsairCMD64GX4M4B3000C15
Real World Speed
Performance profile from 21,426 user samples
21,395 User Benchmarks
Best Bench: 103% @ 3562 MHz
Worst Bench: 45% @ 3000 MHz
Poor: 45% Great: 103%
SPEED RANK: 29th / 70
31 User Benchmarks
Best Bench: 140% @ 3000 MHz
Worst Bench: 75% @ 2133 MHz
Poor: 75% Great: 140%
SPEED RANK: 3rd / 70
Effective Speed
Effective RAM Speed
82.3 % -24% 102 % Faster effective speed.
+24%
MC Read
Avg. 16 Core Read Bench
31.4 GB/s -24% 39 GB/s Faster multi-core read.
+24%
MC Write
Avg. 16 Core Write Bench
31.1 GB/s -27% 39.5 GB/s Faster multi-core write.
+27%
MC Mixed
Avg. 16 Core Mixed IO Bench
25.6 GB/s -42% 36.4 GB/s Much faster multi-core mixed.
+42%
MC Read
16 Core Read Bench
41.3 GB/s -42% 58.7 GB/s Much faster multi-core read.
+42%
MC Write
16 Core Write Bench
39.8 GB/s -64% 65.2 GB/s Much faster multi-core write.
+64%
MC Mixed
16 Core Mixed IO Bench
33.6 GB/s -63% 54.9 GB/s Much faster multi-core mixed.
+63%
Market Share
Based on 3,480,457 RAM Kits tested.
Market Share
Market Share (trailing 30 days)
1.4 % Insanely higher market share.
+∞%
0 % -∞%
Value
Value For Money
50.3 % Better value.
+18%
42.5 % -18%
User Rating
UBM User Rating
70 % More popular.
+17%
60 % -17%
Price
Price (score)
$127 Hugely cheaper.
+81%
$669 -81%
Age
Newest
32 Months -38% 20 Months Much more recent.
+38%
SC Read
Avg. 1 Core Read Bench
18.9 GB/s Slightly faster single-core read.
+11%
17 GB/s -11%
SC Write
Avg. 1 Core Write Bench
31 GB/s Faster single-core write.
+16%
26.8 GB/s -16%
SC Mixed
Avg. 1 Core Mixed IO Bench
24.6 GB/s +3% 24 GB/s -3%
SC Read
1 Core Read Bench
23.2 GB/s +5% 22.1 GB/s -5%
SC Write
1 Core Write Bench
42.1 GB/s -4% 43.6 GB/s +4%
SC Mixed
1 Core Mixed IO Bench
30.9 GB/s -4% 32 GB/s +4%
Latency
Avg. Physical RAM Latency
69.2 ns -11% 61.3 ns Slightly lower access latency.
+11%
Latency
Physical RAM Latency
49.8 ns Slightly lower access latency.
+7%
53.5 ns -7%
Capacity
Capacity
16GB 64GB
Memory Kit Rankings (Price vs Performance) June 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 $303Nvidia GTX 1070 $382Samsung 850 Evo 250GB $100
AMD Ryzen 7 1700 $280AMD RX 480 $608Samsung 850 Pro 256GB $138
Intel Core i5-7600K $232Nvidia GTX 1060-6GB $247Samsung 850 Evo 500GB $160
HDDRAMUSB
Seagate Barracuda 1TB (2016) $50Corsair Vengeance LPX DDR4 3000 C15 2x8GB $127SanDisk Extreme 64GB $33
Seagate Barracuda 3TB (2016) $75G.SKILL Trident Z DDR4 3200 C14 4x16GB $696SanDisk Extreme 32GB $22
Seagate Barracuda 7200.14 1TB $40HyperX Fury DDR4 2133 C14 2x8GB $124SanDisk Ultra Fit 32GB $13
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