Today's hottest deals

Average Bench: 61.1% (800th of 1079)

Based on 10,807 user benchmarks.  Model: SanDisk SD8SBAT128G1122

Above average average bench

The SanDisk Z400s 128GB averaged 38.9% 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 79MB/s
Avg. 4K Random Read Speed 23.2MB/s

Good consistency

The range of scores (95th - 5th percentile) for the SanDisk Z400s 128GB is 24.9%. This is a relatively narrow range which indicates that the SanDisk Z400s 128GB performs reasonably consistently under varying real world conditions.

Weaknesses

Avg. Sustained Write Speed 163MB/s
Avg. Sequential Write Speed 166MB/s

Average Bench

(Based on 10,807 samples)
Min Avg Max
349 Read 437 490
146 Write 166 178
145 Mixed 172 189
120 SusWrite 163 178
51.7% 234 MB/s
Min Avg Max
15.2 4K Read 23.2 28.2
34 4K Write 79 112
8.41 4K Mixed 12.1 14.4
92.5% 38.1 MB/s
Min Avg Max
65.3 DQ Read 160 210
86.2 DQ Write 163 180
31.7 DQ Mixed 71.5 78.9
78.6% 132 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
25GB free (System drive)
Firmware: Z2320000
SusWrite @10s intervals: 170 160 175 177 177 177 MB/s
Read 492
Write 170
Mixed 184
SusWrite 172
56% 255 MB/s
4K Read 26.4
4K Write 108
4K Mixed 13.6
114% 49.2 MB/s
DQ Read 161
DQ Write 177
DQ Mixed 75.7
83% 138 MB/s
24GB free (System drive)
Firmware: Z2320000
SusWrite @10s intervals: 167 163 172 176 177 177 MB/s
Read 474
Write 168
Mixed 178
SusWrite 172
55% 248 MB/s
4K Read 26.8
4K Write 108
4K Mixed 13.6
115% 49.5 MB/s
DQ Read 159
DQ Write 177
DQ Mixed 76.4
83% 138 MB/s
43GB free
Firmware: Z2333000
SusWrite @10s intervals: 179 177 179 180 178 179 MB/s
Read 488
Write 172
Mixed 173
SusWrite 179
56% 253 MB/s
4K Read 25.2
4K Write 77.2
4K Mixed 13.4
96% 38.6 MB/s
DQ Read 176
DQ Write 180
DQ Mixed 77.8
86% 145 MB/s
44GB free (System drive)
Firmware: Z2201000
SusWrite @10s intervals: 168 173 176 176 177 177 MB/s
Read 437
Write 172
Mixed 188
SusWrite 175
54% 243 MB/s
4K Read 24.2
4K Write 89.1
4K Mixed 12.1
99% 41.8 MB/s
DQ Read 158
DQ Write 179
DQ Mixed 76.2
83% 138 MB/s
28GB free (System drive)
Firmware: Z2333000
SusWrite @10s intervals: 173 131 174 175 42 66 MB/s
Read 407
Write 174
Mixed 167
SusWrite 127
48% 219 MB/s
4K Read 24.8
4K Write 86.4
4K Mixed 11.4
98% 40.9 MB/s
DQ Read 162
DQ Write 176
DQ Mixed 75.7
83% 138 MB/s
66GB free (System drive)
Firmware: Z2320000
SusWrite @10s intervals: 163 168 178 178 177 177 MB/s
Read 347
Write 167
Mixed 172
SusWrite 173
48% 215 MB/s
4K Read 17.3
4K Write 65.8
4K Mixed 10.7
75% 31.3 MB/s
DQ Read 167
DQ Write 181
DQ Mixed 73.8
83% 140 MB/s
10,807 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 76,955,050 SSDs tested

 Prices

If you buy via one of these links, our site may earn a commission

AmazonUS $1094 months
Send price feedback
Typical Z400s 128GB Builds (Compare 3,306 builds) See popular component choices, score breakdowns and rankings
Gaming
Gaming 69%
Battle cruiser
Desktop
Desktop 86%
Aircraft carrier
Workstation
Workstation 58%
Gunboat

Motherboard: MSI Z170A PC MATE (MS-7971) - $350

EDIT WITH CUSTOM PC BUILDER Value: 70% - Very good Total price: $913

Popular Z400s 128GB compatible motherboards:

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.

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
Solid State Drive Rankings (Price vs Performance) September 2024 SSD Rankings

Welcome to our 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]

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.

 Comments

1079 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

 Best User Rated

Why does UserBenchmark have a bad reputation on reddit?
Marketers operate thousands of reddit accounts. Our benchmarks expose their spiel so they attack our reputation.
Why don’t PC brands endorse UserBenchmark?
Brands make boatloads on flagships like the 4090 and 14900KS. We help users get similar real-world performance for less money.
Why don’t youtubers promote UserBenchmark?
We don't pay youtubers, so they don't praise us. Moreover, our data obstructs youtubers who promote overpriced or inferior products.
Why does UserBenchmark have negative trustpilot reviews?
The 200+ trustpilot reviews are mostly written by virgin marketing accounts. Real users don't give a monkey's about big brands.
Why is UserBenchmark popular with users?
Instead of pursuing brands for sponsorship, we've spent 13 years publishing real-world data for users.
The Best
CPUGPUSSD
Intel Core i5-12600K $169Nvidia RTX 4060 $285WD Black SN850X M.2 2TB $146
Intel Core i5-12400F $112Nvidia RTX 4060-Ti $372WD Black SN850X M.2 1TB $75
Intel Core i5-13600K $248Nvidia RTX 4070 $278Crucial T700 M.2 4TB $350
Today's hottest deals
If you buy something via a price link, UserBenchmark may earn a commission
About  •  User Guide  •  FAQs  •  Email  •  Privacy  •  Developer  •  YouTube Feedback