Average Bench: 110% (4th of 108)

Based on 18 user benchmarks.  Model: G.SKILL F4-4000C17-8GTRS 4x8GB

Outstanding average bench

The G.SKILL F4 DDR4 4000 C17 4x8GB averaged 9.6% higher than the peak scores attained by the group leaders. This is an excellent result which ranks the G.SKILL F4 DDR4 4000 C17 4x8GB near the top of the comparison list.


Avg. 1 Core Write Bench 44.8GB/s
Avg. 16 Core Write Bench 42.6GB/s

Below average consistency

The range of scores (95th - 5th percentile) for the G.SKILL F4 DDR4 4000 C17 4x8GB is 55.6%. This is a relatively wide range which indicates that the G.SKILL F4 DDR4 4000 C17 4x8GB performs inconsistently under varying real world conditions.


Avg. 1 Core Read Bench 22.4GB/s
Avg. Physical RAM Latency 49.2ns

Average Bench

(Based on 18 samples)
Min Avg Max
24.8 MC Read 41.2 48.7
26.6 MC Write 42.6 51.9
21.1 MC Mixed 32.9 40.3
111% 38.9 GB/s
Min Avg Max
17.1 SC Read 22.4 25.9
24.8 SC Write 44.8 53.8
22.1 SC Mixed 31.6 36.4
94.1% 32.9 GB/s
Min Avg Max
39.8 Latency 49.2 65
81.3% 49.2 ns
User Benchmarks Bench Multi core Single core Latency
The fastest RAM (mainstream) averages a speed of 100%
4 of 4 slots used
32GB DIMM DDR4 clocked @ 3900 MHz
MC Read 48.7
MC Write 51.9
MC Mixed 40.3
134% 47 GB/s
SC Read 25.4
SC Write 50.4
SC Mixed 36.1
107% 37.3 GB/s
Latency 40.2
100% 40.2 ns
4 of 4 slots used
32GB DIMM DDR4 clocked @ 2133 MHz
MC Read 25
MC Write 27.8
MC Mixed 21.8
71% 24.9 GB/s
SC Read 18.9
SC Write 30.4
SC Mixed 23.5
69% 24.3 GB/s
Latency 61.2
65% 61.2 ns
18 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 17,265,781 RAM Kits tested.

Typical F4 DDR4 4000 C17 4x8GB Builds (Compare 2,325 builds) See popular component choices, score breakdowns and rankings.
Gaming 133%
Desktop 157%
Workstation 137%


EDIT WITH CUSTOM PC BUILDER Value: 129% - Outstanding Total price: $1,298

Popular F4 DDR4 4000 C17 4x8GB compatible motherboards:

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.
Memory Kit Rankings (Price vs Performance) June 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 $335Samsung 850 Evo 250GB $101
AMD Ryzen 5 2600 $140Nvidia GTX 1060-6GB $230Samsung 850 Evo 500GB $100
AMD Ryzen 7 2700X $280Nvidia GTX 1080-Ti $808Samsung 850 Pro 256GB $97
Seagate Barracuda 1TB (2016) $44Corsair Vengeance LPX DDR4 3000 C15 2x8GB $75SanDisk Extreme 64GB $45
Seagate Barracuda 3TB (2016) $75G.SKILL Trident Z DDR4 3200 C14 4x16GB $646SanDisk Extreme 32GB $48
WD Blue 1TB (2012) $43Corsair Vengeance LPX DDR4 3200 C16 2x8GB $75SanDisk Ultra Fit 32GB $12
Today's hottest deals
User Guide  •  About  •  FAQs  •  Email  •  Privacy  •  Developer Feedback