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ACJC2M128mSH 128GB

▲ 500 ▼

Release date ≈ Q3 2015.

Average Bench: 31.6% (1003rd of 1071)

Based on 29 user benchmarks.  Model: ACJC2M128mSH
Poor: 18%Average: 31.6% Great: 42%

Poor average bench

The ACJC2M128mSH 128GB averaged 68.4% 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. Sequential Read Speed 369MB/s
Avg. 4K Random Read Speed 12.4MB/s

Good consistency

The range of scores (95th - 5th percentile) for the ACJC2M128mSH 128GB is 24%. This is a relatively narrow range which indicates that the ACJC2M128mSH 128GB performs reasonably consistently under varying real world conditions.

Weaknesses

Avg. 4K Random Mixed IO Speed 1.72MB/s
Avg. 4K-64Thread Mixed IO Speed 5.52MB/s
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Average Bench

(Based on 29 samples)
Rank 100331.6%
Min Avg Max
292 Read 369 453
2.69 Write 89 211
4.3 Mixed 137 275
3.9 SusWrite 70.8 195
36.3% 166 MB/s
Min Avg Max
0.84 4K Read 12.4 20.1
0.05 4K Write 29.6 59.9
0.09 4K Mixed 1.72 6.8
36.6% 14.6 MB/s
Min Avg Max
2.42 DQ Read 36.6 66.1
0.04 DQ Write 61.9 99.1
0.11 DQ Mixed 5.52 18.5
16.5% 34.7 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
80GB free (System drive)
Firmware: 1.095.06
SusWrite @10s intervals: 124 1.5 132 207 7.8 1.5 MB/s
38.6% Below average
Read 413
Write 167
Mixed 203
SusWrite 78.9
47% 215 MB/s
4K Read 15.9
4K Write 31.4
4K Mixed 5.9
48% 17.7 MB/s
DQ Read 67
DQ Write 94.6
DQ Mixed 16.3
30% 59.3 MB/s
86GB free (System drive)
Firmware: 1.092.37
SusWrite @10s intervals: 107 117 116 108 113 116 MB/s
36.9% Below average
Read 373
Write 106
Mixed 136
SusWrite 113
40% 182 MB/s
4K Read 5.4
4K Write 59.9
4K Mixed 3.8
45% 23 MB/s
DQ Read 24.5
DQ Write 91.4
DQ Mixed 10.4
22% 42.1 MB/s
20GB free (System drive)
Firmware: 1.094.33
SusWrite @10s intervals: 33 7 35 11 16 3.1 MB/s
28.8% Poor
Read 355
Write 41
Mixed 6
SusWrite 17.6
22% 105 MB/s
4K Read 13
4K Write 29.9
4K Mixed 5.1
42% 16 MB/s
DQ Read 49.3
DQ Write 18.9
DQ Mixed 9.3
13% 25.8 MB/s
29 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 75,747,266 SSDs tested

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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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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?
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Can CPU power saving states (C1,C2,C3) impact SSD speed?
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 Best User Rated
The Best.
CPUGPUSSD
Intel Core i5-13600K $269Nvidia RTX 4060 $295Crucial MX500 250GB $40
Intel Core i5-12400F $133Nvidia RTX 4060-Ti $385Samsung 850 Evo 120GB $80
Intel Core i5-12600K $177Nvidia 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) $37Corsair Vengeance LPX DDR4 3000 C15 2x8GB $43SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $51G.SKILL Trident Z DDR4 3200 C14 4x16GB $351SanDisk Ultra Fit 32GB $16
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