Average Bench: 33.8% (110th of 113)

Based on 1,264 user benchmarks.  Model: Micron 4ATF51264HZ-2G2AZ 1x4GB
Poor: 26%Average: 33.8% Great: 37%

Popular builds with this RAM

Poor average bench

The Micron 4ATF51264HZ-2G2AZ 1x4GB averaged 66.1% 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. Physical RAM Latency 88.7ns
Avg. 16 Core Read Bench 12.7GB/s

Very good consistency

The range of scores (95th - 5th percentile) for the Micron 4ATF51264HZ-2G2AZ 1x4GB is just 11.6%. This is a relatively narrow range which indicates that the Micron 4ATF51264HZ-2G2AZ 1x4GB performs reasonably consistently under varying real world conditions.


Avg. 1 Core Read Bench 9.38GB/s
Avg. 16 Core Mixed IO Bench 9.54GB/s

Average Bench

(Based on 1,264 samples)
Min Avg Max
9.5 MC Read 12.7 14
8.5 MC Write 11.6 13
7.74 MC Mixed 9.54 10.4
32.2% 11.3 GB/s
Min Avg Max
4.6 SC Read 9.38 11.2
6.24 SC Write 11.2 14
3.85 SC Mixed 9.64 12.1
28.8% 10.1 GB/s
Min Avg Max
69.7 Latency 88.7 137
45.1% 88.7 ns
User Benchmarks Bench Multi core Single core Latency
The fastest RAM (mainstream) averages a speed of 100%
1 of 4 slots used
4GB SODIMM DDR4 clocked @ 2133 MHz
MC Read 14
MC Write 12.6
MC Mixed 10.7
36% 12.4 GB/s
SC Read 10.2
SC Write 13.3
SC Mixed 11
33% 11.5 GB/s
Latency 76.9
52% 76.9 ns
1 of 4 slots used
4GB SODIMM DDR4 clocked @ 2133 MHz
MC Read 14
MC Write 13
MC Mixed 10.1
35% 12.4 GB/s
SC Read 11.6
SC Write 13.8
SC Mixed 11.7
35% 12.4 GB/s
Latency 82.6
48% 82.6 ns
1 of 4 slots used
4GB SODIMM DDR4 clocked @ 2133 MHz
MC Read 14
MC Write 12.4
MC Mixed 10.4
35% 12.3 GB/s
SC Read 11
SC Write 11
SC Mixed 11.7
32% 11.2 GB/s
Latency 72.3
55% 72.3 ns
1 of 4 slots used
4GB SODIMM DDR4 clocked @ 2133 MHz
MC Read 11.1
MC Write 10
MC Mixed 9.1
29% 10.1 GB/s
SC Read 7.8
SC Write 7.8
SC Mixed 7.8
22% 7.8 GB/s
Latency 72.4
55% 72.4 ns
1,264 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 47,576,580 RAM Kits tested.

Typical 4ATF51264HZ-2G2AZ 1x4GB Builds (Compare 1,771 builds) See popular component choices, score breakdowns and rankings.
Gaming 3%
Tree trunk
Desktop 52%
Workstation 3%
Tree trunk

System: Lenovo 80UD


Popular 4ATF51264HZ-2G2AZ 1x4GB 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) November 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 i5-12600K $300Nvidia RTX 3070 $500Crucial MX500 250GB $45
Intel Core i5-11600K $220Nvidia RTX 3060-Ti $400Samsung 860 Evo 250GB $52
Intel Core i7-11700K $300Nvidia RTX 3080 $700Samsung 850 Evo 120GB $183
Seagate Barracuda 1TB (2016) $37Corsair Vengeance LPX DDR4 3200 C16 2x8GB $63SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $33Corsair Vengeance LPX DDR4 3000 C15 2x8GB $74SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $71G.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