Average Bench: 85.8% (33rd of 113)

Based on 198 user benchmarks.  Model: G.SKILL F4-4133C19-8GTZA 2x8GB

Very good average bench

The G.SKILL F4 DDR4 4133 C19 2x8GB averaged just 14.1% lower than the peak scores attained by the group leaders. This is an excellent result which ranks the G.SKILL F4 DDR4 4133 C19 2x8GB near the top of the comparison list.


Avg. 1 Core Write Bench 33GB/s
Avg. 16 Core Read Bench 32.7GB/s

Very poor consistency

The range of scores (95th - 5th percentile) for the G.SKILL F4 DDR4 4133 C19 2x8GB is 76.2%. This is a particularly wide range which indicates that the G.SKILL F4 DDR4 4133 C19 2x8GB performs inconsistently under varying real world conditions.


Avg. 1 Core Read Bench 19.8GB/s
Avg. Physical RAM Latency 59.3ns

Average Bench

(Based on 198 samples)
Min Avg Max
14.3 MC Read 32.7 48.6
14.3 MC Write 32.6 49.2
13.4 MC Mixed 25 35.2
86% 30.1 GB/s
Min Avg Max
12.7 SC Read 19.8 25.9
14.1 SC Write 33 51.2
13.6 SC Mixed 26.8 36.6
75.8% 26.5 GB/s
Min Avg Max
43.4 Latency 59.3 98.6
67.4% 59.3 ns
User Benchmarks Bench Multi core Single core Latency
The fastest RAM (mainstream) averages a speed of 100%
2 of 2 slots used
16GB DIMM DDR4 clocked @ 4000 MHz
MC Read 54.7
MC Write 56.8
MC Mixed 39.3
144% 50.3 GB/s
SC Read 28.4
SC Write 55.6
SC Mixed 38.5
117% 40.8 GB/s
Latency 39
102% 39 ns
2 of 4 slots used
16GB DIMM DDR4 clocked @ 4133 MHz
MC Read 44.4
MC Write 48.4
MC Mixed 31.4
118% 41.4 GB/s
SC Read 23.4
SC Write 53.8
SC Mixed 35.1
107% 37.4 GB/s
Latency 47
85% 47 ns
2 of 4 slots used
16GB DIMM DDR4 clocked @ 2133 MHz
MC Read 30.6
MC Write 29.4
MC Mixed 27.1
83% 29 GB/s
SC Read 19.9
SC Write 29.2
SC Mixed 23.2
69% 24.1 GB/s
Latency 96.9
41% 96.9 ns
198 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 30,854,291 RAM Kits tested.

Typical F4 DDR4 4133 C19 2x8GB Builds (Compare 2,477 builds) See popular component choices, score breakdowns and rankings.
Gaming 117%
Desktop 93%
Nuclear submarine
Workstation 100%
Nuclear submarine

Motherboard: Asus MAXIMUS IX HERO - $229

EDIT WITH CUSTOM PC BUILDER Value: 53% - Above average Total price: $1,441

Popular F4 DDR4 4133 C19 2x8GB compatible motherboards:

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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.
  • - 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.
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Memory Kit Rankings (Price vs Performance) August 2020 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]


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.


113 Memory Kits (Compared) Thousands of user benchmarks compiled into one comparison list.

See how consistently different RAM Kits perform with varying real world conditions. The charts also illustrate overall performance, popularity and rank.

 Frequently Asked Questions

 Best User Rated

The Best.
Intel Core i5-9600K $195Nvidia GTX 1660S (Super) $230Crucial MX500 250GB $46
Intel Core i5-9400F $155Nvidia GTX 1650S (Super) $170Samsung 850 Evo 120GB $78
Intel Core i7-9700K $340Nvidia RTX 2070S (Super) $510Samsung 860 Evo 250GB $49
Seagate Barracuda 1TB (2016) $42Corsair Vengeance LPX DDR4 3200 C16 2x8GB $69SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $34Corsair Vengeance LPX DDR4 3000 C15 2x8GB $69SanDisk Extreme 32GB $46
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $681SanDisk Extreme 16GB $24
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