HyperXHX421C14FBK4/32
$165
HyperXHX421C14FB(|2)K2/16
Real World Speed
Performance profile from 11,020 user samples
1,810 User Benchmarks
Best Bench: 112% @ 2667 MHz
Worst Bench: 55% @ 2133 MHz
Poor: 55% Great: 112%
SPEED RANK: 49th / 104
9,210 User Benchmarks
Best Bench: 81% @ 3018 MHz
Worst Bench: 42% @ 2133 MHz
Poor: 42% Great: 81%
SPEED RANK: 67th / 104
Effective Speed
Effective RAM Speed
80.4 % Slightly faster effective speed.
+11%
72.5 %
MC Read
Avg. 16 Core Read Bench
29.2 GB/s Slightly faster multi-core read.
+10%
26.5 GB/s
MC Write
Avg. 16 Core Write Bench
31.5 GB/s Faster multi-core write.
+15%
27.3 GB/s
MC Mixed
Avg. 16 Core Mixed IO Bench
27.1 GB/s Faster multi-core mixed.
+16%
23.3 GB/s
MC Read
16 Core Read Bench
43.4 GB/s Much faster multi-core read.
+44%
30.2 GB/s
MC Write
16 Core Write Bench
47.1 GB/s Much faster multi-core write.
+53%
30.7 GB/s
MC Mixed
16 Core Mixed IO Bench
41.7 GB/s Much faster multi-core mixed.
+57%
26.5 GB/s
Market Share
Based on 8,762,610 RAM Kits tested.
Market Share
Market Share (trailing 30 days)
0.03 % 0.21 % Hugely higher market share.
+600%
Value
Value For Money
153 % Hugely better value.
+189%
53 %
User Rating
UBM User Rating
55 % 65 % More popular.
+18%
Price
Price (score)
$165 Cheaper.
+27%
$226
Age
Newest
51 Months 40 Months More recent.
+22%
SC Read
Avg. 1 Core Read Bench
16.2 GB/s 16.3 GB/s +1%
SC Write
Avg. 1 Core Write Bench
26.1 GB/s 26.5 GB/s +2%
SC Mixed
Avg. 1 Core Mixed IO Bench
21.8 GB/s 22 GB/s +1%
SC Read
1 Core Read Bench
19.9 GB/s +4% 19.1 GB/s
SC Write
1 Core Write Bench
31.5 GB/s +1% 31.1 GB/s
SC Mixed
1 Core Mixed IO Bench
25.6 GB/s 26.5 GB/s +4%
Latency
Avg. Physical RAM Latency
70.2 ns 69.6 ns +1%
Latency
Physical RAM Latency
61.4 ns 60 ns +2%
Capacity
Capacity
32GB 16GB
Memory Kit Rankings (Price vs Performance) June 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
Intel Core i7-8700K $320Nvidia GTX 1070 $413Samsung 850 Evo 250GB $90
AMD Ryzen 5 1600 $175Nvidia GTX 1060-6GB $250Samsung 850 Evo 500GB $138
Intel Core i5-8600K $222AMD RX 480 $280Samsung 850 Pro 256GB $125
HDDRAMUSB
Seagate Barracuda 1TB (2016) $44Corsair Vengeance LPX DDR4 3000 C15 2x8GB $177SanDisk Extreme 64GB $44
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $911SanDisk Extreme 32GB $30
Seagate Barracuda 2TB (2016) $59HyperX Fury DDR4 2133 C14 2x8GB $226SanDisk Ultra Fit 32GB $12
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