Average Bench: 85.4% (41st of 108)

Based on 121 user benchmarks.  Model: G.SKILL F4-4133C19-8GTZA 2x8GB

Very good average bench

The G.SKILL F4 DDR4 4133 C19 2x8GB averaged just 14.5% 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 33.1GB/s
Avg. 16 Core Write Bench 32.9GB/s

Very poor consistency

The range of scores (95th - 5th percentile) for the G.SKILL F4 DDR4 4133 C19 2x8GB is 75.7%. 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 19.5GB/s
Avg. 16 Core Mixed IO Bench 24.5GB/s

Average Bench

(Based on 121 samples)
Min Avg Max
14.2 MC Read 32.3 48.1
14.3 MC Write 32.9 49.1
13.3 MC Mixed 24.5 33.7
85.4% 29.9 GB/s
Min Avg Max
12.2 SC Read 19.5 25.8
13.9 SC Write 33.1 50.7
13.2 SC Mixed 26.3 36.5
75.2% 26.3 GB/s
Min Avg Max
43.7 Latency 57.1 73.7
70.1% 57.1 ns
User Benchmarks Bench Multi core Single core Latency
The fastest RAM (mainstream) averages a speed of 100%
2 of 4 slots used
16GB DIMM DDR4 clocked @ 3466 MHz
MC Read 41.1
MC Write 38.9
MC Mixed 28.9
104% 36.3 GB/s
SC Read 23.2
SC Write 43
SC Mixed 34.8
96% 33.7 GB/s
Latency 44.2
91% 44.2 ns
2 of 4 slots used
16GB DIMM DDR4 2133 MHz clocked @ 1067 MHz
MC Read 25.3
MC Write 20.1
MC Mixed 24.3
66% 23.2 GB/s
SC Read 16.9
SC Write 21.6
SC Mixed 18.2
54% 18.9 GB/s
Latency 104
38% 104 ns
121 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 17,820,059 RAM Kits tested.

Typical F4 DDR4 4133 C19 2x8GB Builds (Compare 12,422 builds) See popular component choices, score breakdowns and rankings.
Gaming 124%
Desktop 122%
Workstation 88%
Aircraft carrier

Motherboard: Asus MAXIMUS IX HERO - $229

EDIT WITH CUSTOM PC BUILDER Value: 109% - Outstanding Total price: $1,531

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) July 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]


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.


108 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 i7-8700K $350Nvidia GTX 1070 $400Samsung 850 Evo 250GB $104
AMD Ryzen 5 2600 $120Nvidia GTX 1060-6GB $250Samsung 850 Evo 500GB $103
AMD Ryzen 7 2700X $222Nvidia GTX 1080-Ti $808Samsung 850 Pro 256GB $97
Seagate Barracuda 1TB (2016) $40Corsair Vengeance LPX DDR4 3000 C15 2x8GB $68SanDisk Extreme 64GB $45
Seagate Barracuda 3TB (2016) $70G.SKILL Trident Z DDR4 3200 C14 4x16GB $607SanDisk Extreme 32GB $48
WD Blue 1TB (2012) $40Corsair Vengeance LPX DDR4 3200 C16 2x8GB $78SanDisk Ultra Fit 32GB $12
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