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CorsairCMK16GX4M2A2133C13(|R)
HyperXHX421C14FB(|2)K2/16
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Effective Speed 
+5%
Real World Speed
Performance profile from 20,276 user samples
Benchmark your RAM here
7,834 User Benchmarks
Best Bench: 79% @ 2667 MHz
Worst Bench: 40% @ 2133 MHz
Poor: 40% Great: 79%
SPEED RANK: 46th / 70
12,442 User Benchmarks
Best Bench: 81% @ 1600 MHz
Worst Bench: 42% @ 2133 MHz
Poor: 42% Great: 81%
SPEED RANK: 41st / 70
Effective Speed
Effective RAM Speed 		68.8 % -5% 72.4 % Slightly faster effective speed.
+5%
Average User Bench 
+6%
MC Read
Avg. 16 Core Read Bench 		25.4 GB/s -4% 26.5 GB/s +4%
MC Write
Avg. 16 Core Write Bench 		26 GB/s -5% 27.2 GB/s +5%
MC Mixed
Avg. 16 Core Mixed IO Bench 		21.7 GB/s -8% 23.4 GB/s Slightly faster multi-core mixed.
+8%
Peak Lab Bench 
+1%
MC Read
16 Core Read Bench 		30.1 GB/s +1% 29.9 GB/s -1%
MC Write
16 Core Write Bench 		29.8 GB/s -3% 30.7 GB/s +3%
MC Mixed
16 Core Mixed IO Bench 		26.5 GB/s -0% 26.6 GB/s +0%
Value & Sentiment 
+17%
Market Share
Based on 4,917,158 RAM Kits tested.
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.27 % -41% 0.38 % Much higher market share.
+41%
Value
Value For Money 		33.4 % -14% 38.1 % Slightly better value.
+14%
User Rating
UBM User Rating 		62 % -3% 64 % +3%
Price
Price (score) 		$175 -10% $157 Slightly cheaper.
+10%
Nice To Haves 
+4%
Age
Newest 		36 Months -11% 32 Months Slightly more recent.
+11%
SC Read
Avg. 1 Core Read Bench 		15.8 GB/s -3% 16.3 GB/s +3%
SC Write
Avg. 1 Core Write Bench 		25 GB/s -5% 26.3 GB/s Slightly faster single-core write.
+5%
SC Mixed
Avg. 1 Core Mixed IO Bench 		20.7 GB/s -5% 21.8 GB/s Slightly faster single-core mixed.
+5%
SC Read
1 Core Read Bench 		19.1 GB/s -3% 19.7 GB/s +3%
SC Write
1 Core Write Bench 		30.4 GB/s -2% 31 GB/s +2%
SC Mixed
1 Core Mixed IO Bench 		24.8 GB/s -6% 26.3 GB/s Slightly faster single-core mixed.
+6%
Latency
Avg. Physical RAM Latency 		72.4 ns -2% 70.9 ns +2%
Latency
Physical RAM Latency 		61.1 ns -1% 60.3 ns +1%
Specifications 
Capacity
Capacity 		16GB 16GB
User Builds 
7,834
12,442
Custom PC Builder (Start a new build) Build your perfect PC: compare component prices, popularity, speed and value for money.

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Memory Kit Rankings (Price vs Performance) October 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]

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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.

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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

Computer Components FAQ
What is the UBM value for money rating?
What is UBM Effective Speed?
Thunderbolt speed?
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USB 3.0 vs 2.0 speed difference?
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USB 3.0 / 4.0 release dates and max speeds?
Graphics Cards
How to force Optimus or Switchable discrete GPUs?
What are the UBM DX11 GPU tests?
What are the UBM DX10 GPU tests?
What are the UBM DX09 GPU tests?
What is the Splatting GPU benchmark?
What is the Gravity (NBody) GPU benchmark?
Memory Kits
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ALL FAQs »

 Best User Rated
The Best.
CPUGPUSSD
Intel Core i7-7700K $299Nvidia GTX 1070 $386Samsung 850 Evo 250GB $95
AMD Ryzen 7 1700 $280AMD RX 480 $508Samsung 850 Pro 256GB $126
Intel Core i5-7600K $230Nvidia GTX 1060-6GB $265Samsung 850 Evo 500GB $140
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $158SanDisk Extreme 64GB $33
Seagate Barracuda 3TB (2016) $75G.SKILL Trident Z DDR4 3200 C14 4x16GB $920SanDisk Extreme 32GB $22
Seagate Barracuda 2TB (2016) $67Corsair Vengeance LPX DDR4 3200 C16 2x8GB $180SanDisk Ultra Fit 32GB $13
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