HyperXHX421C14FB(|2)K2/16
G.SKILLF4-4000C19D-16GTZKW
VS
About
  

Release date ≈ Q4 2016.

Real World Speed
Performance profile from 31,328 user samples
31,094 User Benchmarks
Best Bench: 87% @ 3000 MHz
Worst Bench: 41% @ 2133 MHz
Poor: 41% Great: 87%
SPEED RANK: 71st / 108
234 User Benchmarks
Best Bench: 122% @ 3733 MHz
Worst Bench: 44% @ 2133 MHz
Poor: 44% Great: 122%
SPEED RANK: 23rd / 108
Effective Speed
Effective RAM Speed
72.4 % 89 % Faster effective speed.
+23%
MC Read
Avg. 16 Core Read Bench
26.3 GB/s 34.2 GB/s Much faster multi-core read.
+30%
MC Write
Avg. 16 Core Write Bench
27 GB/s 33.8 GB/s Faster multi-core write.
+25%
MC Mixed
Avg. 16 Core Mixed IO Bench
23.6 GB/s 26.1 GB/s Slightly faster multi-core mixed.
+11%
MC Read
16 Core Read Bench
33.6 GB/s 49.6 GB/s Much faster multi-core read.
+48%
MC Write
16 Core Write Bench
33.2 GB/s 48.7 GB/s Much faster multi-core write.
+47%
MC Mixed
16 Core Mixed IO Bench
29.6 GB/s 38.3 GB/s Faster multi-core mixed.
+29%
Market Share
Based on 19,739,784 RAM Kits tested.
Market Share
Market Share (trailing 30 days)
0.16 % Insanely higher market share.
+∞%
0 %
User Rating
UBM User Rating
64 % More popular.
+28%
50 %
Age
Newest
55 Months 32+ Months Much more recent.
+42%
SC Read
Avg. 1 Core Read Bench
16.4 GB/s 20.4 GB/s Faster single-core read.
+24%
SC Write
Avg. 1 Core Write Bench
26.3 GB/s 34.1 GB/s Faster single-core write.
+30%
SC Mixed
Avg. 1 Core Mixed IO Bench
22.1 GB/s 27.2 GB/s Faster single-core mixed.
+23%
SC Read
1 Core Read Bench
21.2 GB/s 28.1 GB/s Much faster single-core read.
+33%
SC Write
1 Core Write Bench
33.8 GB/s 50 GB/s Much faster single-core write.
+48%
SC Mixed
1 Core Mixed IO Bench
28 GB/s 36.3 GB/s Faster single-core mixed.
+30%
Latency
Avg. Physical RAM Latency
70 ns 60 ns Slightly lower access latency.
+14%
Latency
Physical RAM Latency
59.5 ns 43.2 ns Lower access latency.
+27%
Capacity
Capacity
16GB 16GB
Memory Kit Rankings (Price vs Performance) September 2019 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.
  • Best value for money - Value for money is based on real world performance.
  • Fastest real world speed - Real World Speed measures performance for typical consumers.
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.
  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
  • - Drive tests include: read, write, sustained write and mixed IO.
  • - 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 current market leaders.
  • - Explore your best upgrade options with a virtual PC build.
  • - Compare your in-game FPS to other users with your hardware.
  • - Share your opinion by voting.

 Frequently Asked Questions

 Best User Rated

The Best.
CPUGPUSSD
Intel Core i5-9400F $140Nvidia GTX 1660 $220Samsung 850 Evo 250GB $70
Intel Core i5-9600K $225Nvidia GTX 1660-Ti $275Samsung 850 Evo 500GB $90
Intel Core i7-9700K $340Nvidia RTX 2060S (Super) $429Samsung 850 Pro 256GB $230
HDDRAMUSB
Seagate Barracuda 1TB (2016) $40Corsair Vengeance LPX DDR4 3000 C15 2x8GB $70SanDisk Extreme 64GB $88
WD Blue 1TB (2012) $37G.SKILL Trident Z DDR4 3200 C14 4x16GB $799SanDisk Extreme 32GB $48
Seagate Barracuda 3TB (2016) $64Corsair Vengeance LPX DDR4 3200 C16 2x8GB $73SanDisk Extreme 16GB $24
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