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Adata

XM21E 128GB

▲ 500 ▼

Release date ≈ Q1 2015.

Average Bench: 63.6% (757th of 1072)

Based on 15 user benchmarks.  Model: ADATA XM21E
Poor: 41%Average: 63.6% Great: 77%

Popular builds with this SSD

Above average average bench

The Adata XM21E 128GB averaged 36.3% 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.

Strengths

Avg. 4K Random Write Speed 74.9MB/s
Avg. 4K Random Read Speed 24.6MB/s

Above average consistency

The range of scores (95th - 5th percentile) for the Adata XM21E 128GB is 35.6%. This is a relatively wide range which indicates that the Adata XM21E 128GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. Sustained Write Speed 119MB/s
Avg. Sequential Write Speed 132MB/s
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Average Bench

(Based on 15 samples)
Rank 75763.6%
Min Avg Max
330 Read 445 480
93.9 Write 132 167
129 Mixed 185 244
67.2 SusWrite 119 162
48.3% 220 MB/s
Min Avg Max
12.8 4K Read 24.6 31
26.8 4K Write 74.9 115
9.99 4K Mixed 22.7 39.4
106% 40.7 MB/s
Min Avg Max
16.6 DQ Read 170 268
30.5 DQ Write 121 171
9.45 DQ Mixed 50.2 114
63.2% 114 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
33GB free (System drive)
Firmware: 5.8D
SusWrite @10s intervals: 136 137 139 139 140 109 MB/s
82.6% Excellent
Read 480
Write 142
Mixed 175
SusWrite 133
51% 233 MB/s
4K Read 31
4K Write 99.4
4K Mixed 39.4
150% 56.6 MB/s
DQ Read 266
DQ Write 146
DQ Mixed 110
107% 174 MB/s
23GB free (System drive)
Firmware: 5.8D
SusWrite @10s intervals: 135 136 138 140 140 112 MB/s
73.2% Very good
Read 416
Write 143
Mixed 175
SusWrite 134
48% 217 MB/s
4K Read 27.8
4K Write 80.8
4K Mixed 33.5
128% 47.4 MB/s
DQ Read 268
DQ Write 145
DQ Mixed 106
106% 173 MB/s
37GB free (System drive)
Firmware: 2.9
SusWrite @10s intervals: 113 125 123 114 120 119 MB/s
70.4% Very good
Read 453
Write 128
Mixed 156
SusWrite 119
47% 214 MB/s
4K Read 26.3
4K Write 75.8
4K Mixed 32.4
122% 44.8 MB/s
DQ Read 210
DQ Write 133
DQ Mixed 91.3
90% 145 MB/s
31GB free (System drive)
Firmware: 2.9
SusWrite @10s intervals: 76 65 69 68 66 59 MB/s
62.9% Good
Read 375
Write 124
Mixed 129
SusWrite 67.2
38% 174 MB/s
4K Read 27.2
4K Write 78.2
4K Mixed 27.6
118% 44.3 MB/s
DQ Read 243
DQ Write 123
DQ Mixed 61.4
78% 142 MB/s
67GB free (System drive)
Firmware: 2.9
SusWrite @10s intervals: 100 102 105 94 122 77 MB/s
55.9% Above average
Read 330
Write 122
Mixed 130
SusWrite 99.8
38% 171 MB/s
4K Read 21
4K Write 54.4
4K Mixed 26.3
94% 33.9 MB/s
DQ Read 206
DQ Write 130
DQ Mixed 85.3
86% 140 MB/s
15 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 75,821,115 SSDs tested

Custom PC Builder (Start a new build) Build your perfect PC: compare component prices, popularity, speed and value for money

CHOOSE A COMPONENT:

CPU GPU SSD HDD RAM MBD
Typical XM21E 128GB Builds (Compare 1,588 builds) See popular component choices, score breakdowns and rankings
Gaming
Gaming 6%
Tree trunk
Desktop
Desktop 49%
Yacht
Workstation
Workstation 6%
Tree trunk

System: Dell Latitude E5440

CPU
Core i5-4310UIntelBench 49%, 14,648 samples599x
Core i5-4300UIntelBench 44%, 36,631 samples382x
Core i7-4600UIntelBench 49%, 26,548 samples283x
GPU
HD 4400 (Mobile 1.0/1.1 GHz)IntelBench 2%, 275,372 samples1,465x
GeForce GT 720MNvidiaBench 4%, 4,823 samples123x
SSD
XM21E 128GBAdataBench 64%, 15 samples1x
RAM
HMT451S6BFR8A-PB 2x4GBHynixBench 48%, 30,280 samples91x
M471B5173DB0-YK0 2x4GBSamsungBench 47%, 26,681 samples71x
HMT451S6BFR8A-PB 1x4GBHynixBench 25%, 64,960 samples66x
EDIT WITH CUSTOM PC BUILDER

Popular XM21E 128GB systems:

How Fast Is Your SSD? (Bench your build) Size up your PC in less than a minute

Welcome to our 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 value for money 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
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Solid State Drive Rankings (Price vs Performance) May 2024 SSD Rankings

Welcome to our 2.5" and M.2 SSD comparison. We calculate effective speed for both SATA and NVMe drives based on real world performance then adjust by current prices per GB to yield a value for money rating. 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 SSDs. [SSDrivePro]

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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.

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Speed Comparisons

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1072 Drives (Compared) Thousands of user benchmarks compiled into one comparison list

See how consistently different SSDs perform with varying real world conditions. The charts also illustrate overall performance, popularity and rank.

 Frequently Asked Questions

Storage Devices FAQ
What is sustained sequential write speed?
What’s the difference between SLC, MLC and TLC?
What is 3D XPoint and how fast is it?
What’s the difference between SATA, PCIe and NVMe?
What’s the difference between NAND and V-NAND?
What is sequential write speed?
What is sequential read speed?
What is incompressible data?
What is queue depth?
Solid State Drives
What is the SSD value for money rating?
What is 4K 64 thread write speed?
Can CPU power saving states (C1,C2,C3) impact SSD speed?
What is the effective SSD speed index?
How is the AS SSD write score calculated?
How is the AS SSD read score calculated?
How is the AS SSD total score calculated?
ALL FAQs »

 Best User Rated
The Best.
CPUGPUSSD
Intel Core i5-13600K $254Nvidia RTX 4060 $300Crucial MX500 250GB $39
Intel Core i5-12400F $133Nvidia RTX 4060-Ti $385Samsung 850 Evo 120GB $80
Intel Core i5-12600K $163Nvidia RTX 4070 $539Samsung 860 Evo 250GB $52
HDDRAMUSB
Seagate Barracuda 1TB (2016) $39Corsair Vengeance LPX DDR4 3200 C16 2x8GB $45SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $31Corsair Vengeance LPX DDR4 3000 C15 2x8GB $48SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $51G.SKILL Trident Z DDR4 3200 C14 4x16GB $351SanDisk Ultra Fit 32GB $16
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