Average Bench: 60.2% (87th of 113)

Based on 4,000 user benchmarks.  Model: Unknown 4ATF51264HZ-2G6E1 2x4GB

Above average average bench

The Unknown 4ATF51264HZ-2G6E1 2x4GB averaged 39.8% lower than the peak scores attained by the group leaders. This isn't a great result which indicates that there are much faster alternatives on the comparison list.


Avg. 16 Core Read Bench 24.3GB/s
Avg. 1 Core Write Bench 23GB/s

Good consistency

The range of scores (95th - 5th percentile) for the Unknown 4ATF51264HZ-2G6E1 2x4GB is 25.3%. This is a relatively narrow range which indicates that the Unknown 4ATF51264HZ-2G6E1 2x4GB performs reasonably consistently under varying real world conditions.


Avg. 1 Core Read Bench 14.7GB/s
Avg. Physical RAM Latency 82.7ns

Average Bench

(Based on 4,000 samples)
Min Avg Max
17.9 MC Read 24.3 28.2
15.4 MC Write 20.6 26.5
13.7 MC Mixed 17.7 21.7
59.6% 20.9 GB/s
Min Avg Max
6.93 SC Read 14.7 18.2
10.7 SC Write 23 32.6
8.7 SC Mixed 19.9 25.3
54.9% 19.2 GB/s
Min Avg Max
60.7 Latency 82.7 134
48.3% 82.7 ns
User Benchmarks Bench Multi core Single core Latency
The fastest RAM (mainstream) averages a speed of 100%
2 of 2 slots used
8GB SODIMM DDR4 clocked @ 2667 MHz
MC Read 27.6
MC Write 25.2
MC Mixed 20.1
69% 24.3 GB/s
SC Read 14.5
SC Write 31.5
SC Mixed 22.9
66% 23 GB/s
Latency 64.5
62% 64.5 ns
2 of 2 slots used
8GB SODIMM DDR4 2667 MHz clocked @ 2400 MHz
MC Read 25.3
MC Write 23.3
MC Mixed 22.1
67% 23.6 GB/s
SC Read 16
SC Write 18.8
SC Mixed 17.5
50% 17.4 GB/s
Latency 116
34% 116 ns
2 of 2 slots used
8GB SODIMM DDR4 clocked @ 2667 MHz
MC Read 23.7
MC Write 19.2
MC Mixed 16.3
56% 19.7 GB/s
SC Read 13.8
SC Write 21.6
SC Mixed 18.8
52% 18.1 GB/s
Latency 69.7
57% 69.7 ns
4,000 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 44,279,120 RAM Kits tested.

Typical 4ATF51264HZ-2G6E1 2x4GB Builds (Compare 5,219 builds) See popular component choices, score breakdowns and rankings.
Gaming 10%
Tree trunk
Desktop 72%
Workstation 10%
Tree trunk

System: Dell G3 3590


Popular 4ATF51264HZ-2G6E1 2x4GB systems:

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.
  • - SkillBench (space shooter) tests user input accuracy.
  • - 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.
Memory Kit Rankings (Price vs Performance) July 2021 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 i5-11400F $239Nvidia RTX 3060-Ti $400Crucial MX500 250GB $45
Intel Core i5-11600K $270Nvidia RTX 3070 $500Samsung 860 Evo 250GB $52
Intel Core i7-10700K $304Nvidia GTX 1660S (Super) $240Samsung 850 Evo 120GB $78
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3200 C16 2x8GB $79SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $29Corsair Vengeance LPX DDR4 3000 C15 2x8GB $85SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Ultra Fit 32GB $16
Today's hottest deals
About  •  User Guide  •  FAQs  •  Email  •  Privacy  •  Developer  •  YouTube Feedback