Average Bench: 84.6% (37th of 113)

Based on 2,334 user benchmarks.  Model: Unknown XW21KG-MIE2 2x8GB

Very good average bench

The Unknown XW21KG-MIE2 2x8GB averaged just 15.3% lower than the peak scores attained by the group leaders. This is an excellent result which ranks the Unknown XW21KG-MIE2 2x8GB near the top of the comparison list.


Avg. 16 Core Read Bench 35.7GB/s
Avg. 1 Core Write Bench 29.5GB/s

Good consistency

The range of scores (95th - 5th percentile) for the Unknown XW21KG-MIE2 2x8GB is 25.5%. This is a relatively narrow range which indicates that the Unknown XW21KG-MIE2 2x8GB performs reasonably consistently under varying real world conditions.


Avg. Physical RAM Latency 72.9ns
Avg. 1 Core Read Bench 20.3GB/s

Average Bench

(Based on 2,334 samples)
Min Avg Max
29.2 MC Read 35.7 42.8
20 MC Write 29.2 36.6
19.7 MC Mixed 25.9 34.2
86.4% 30.3 GB/s
Min Avg Max
13.9 SC Read 20.3 29.2
19.4 SC Write 29.5 43.6
19.2 SC Mixed 27 35.9
73.1% 25.6 GB/s
Min Avg Max
56.7 Latency 72.9 96.9
54.9% 72.9 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 @ 3200 MHz
MC Read 36.1
MC Write 37.1
MC Mixed 26.6
95% 33.3 GB/s
SC Read 20.4
SC Write 44.2
SC Mixed 29.8
90% 31.5 GB/s
Latency 58.8
68% 58.8 ns
2 of 4 slots used
16GB DIMM DDR4 clocked @ 3200 MHz
MC Read 35.3
MC Write 36.2
MC Mixed 25.7
93% 32.4 GB/s
SC Read 18.8
SC Write 42.4
SC Mixed 27
84% 29.4 GB/s
Latency 57
70% 57 ns
2 of 4 slots used
16GB DIMM DDR4 clocked @ 3200 MHz
MC Read 35.6
MC Write 35
MC Mixed 25.6
92% 32.1 GB/s
SC Read 19.3
SC Write 41.6
SC Mixed 28.1
85% 29.7 GB/s
Latency 66.4
60% 66.4 ns
2 of 4 slots used
16GB DIMM DDR4 clocked @ 2667 MHz
MC Read 29.7
MC Write 20.1
MC Mixed 28.7
75% 26.2 GB/s
SC Read 23.1
SC Write 19.7
SC Mixed 29.2
69% 24 GB/s
Latency 91.8
44% 91.8 ns
2,334 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 47,759,116 RAM Kits tested.

Typical XW21KG-MIE2 2x8GB Builds (Compare 1,096 builds) See popular component choices, score breakdowns and rankings.
Gaming 202%
Desktop 101%
Workstation 219%

System: Alienware Aurora R11

EDIT WITH CUSTOM PC BUILDER Value: 77% - Very good Total price: $1,138

Popular XW21KG-MIE2 2x8GB 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.

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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.
  • - 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.
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Memory Kit Rankings (Price vs Performance) December 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 3060-Ti $400Crucial MX500 250GB $45
Intel Core i5-11600K $220Nvidia RTX 3070 $500Samsung 860 Evo 250GB $52
Intel Core i5-11400F $196Nvidia RTX 3080 $700Samsung 850 Evo 120GB $200
Seagate Barracuda 1TB (2016) $37Corsair Vengeance LPX DDR4 3200 C16 2x8GB $67SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $38Corsair Vengeance LPX DDR4 3000 C15 2x8GB $76SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $71G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Ultra Fit 32GB $16
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