Average Bench: 161% (56th of 929)

Based on 1,514 user benchmarks.  Model: SAMSUNG MZHPV128HDGM-00000

Outstanding average bench

The Samsung SM951 AHCI PCIe M.2 128GB averaged 60.6% higher than the peak scores attained by the group leaders. This is an excellent result which ranks the Samsung SM951 AHCI PCIe M.2 128GB near the top of the comparison list.


Avg. Sequential Read Speed 1,652MB/s
Avg. 4K Random Read Speed 54.9MB/s

Poor consistency

The range of scores (95th - 5th percentile) for the Samsung SM951 AHCI PCIe M.2 128GB is 69.6%. This is a particularly wide range which indicates that the Samsung SM951 AHCI PCIe M.2 128GB performs inconsistently under varying real world conditions.


Avg. 4K-64Thread Read Speed 221MB/s
Avg. 4K-64Thread Write Speed 186MB/s

Average Bench

(Based on 1,514 samples)
Min Avg Max
756 Read 1,652 1,906
209 Write 549 667
318 Mixed 749 941
214% 983 MB/s
Min Avg Max
24.5 4K Read 54.9 45
34.1 4K Write 103 139
14.8 4K Mixed 31.1 44.2
177% 63 MB/s
Min Avg Max
30.3 DQ Read 221 493
92.6 DQ Write 186 260
18.6 DQ Mixed 87.1 179
97.1% 165 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
65GB free
Firmware: BXW2500Q Max speed: PCIe 5,000 MB/s
Read 1,737
Write 674
Mixed 917
243% 1,109 MB/s
4K Read 37.6
4K Write 117
4K Mixed 25.2
151% 59.9 MB/s
DQ Read 46.1
DQ Write 248
DQ Mixed 25.8
56% 107 MB/s
14GB free
Firmware: BXW2500Q Max speed: PCIe 5,000 MB/s
Read 1,628
Write 489
Mixed 651
200% 922 MB/s
4K Read 40.7
4K Write 115
4K Mixed 40.7
175% 65.6 MB/s
DQ Read 32.4
DQ Write 123
DQ Mixed 20.3
32% 58.6 MB/s
20GB free
Firmware: BXW2500Q Max speed: PCIe 5,000 MB/s
Read 1,286
Write 360
Mixed 503
155% 716 MB/s
4K Read 40.9
4K Write 115
4K Mixed 24.5
154% 60 MB/s
DQ Read 42.6
DQ Write 168
DQ Mixed 27
44% 79.2 MB/s
1,514 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 7,222,865 SSDs tested.


AmazonUS $1101 month
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Typical SM951 AHCI PCIe M.2 128GB Builds (Compare 1,976 builds) See popular component choices, score breakdowns and rankings.
Gaming 65%
Desktop 95%
Nuclear submarine
Workstation 66%
Battle cruiser

Motherboard: Asrock Z97 Extreme6 - $162

EDIT WITH CUSTOM PC BUILDER Value: 74% - Very good Total price: $994

Popular SM951 AHCI PCIe M.2 128GB compatible motherboards:

How Fast Is Your SSD? (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

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  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
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  • - RAM tests include: single/multi core bandwidth and latency.
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Solid State Drive Rankings (Price vs Performance) June 2018 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]


Group Test Results

  • Best user rated - Sometimes benchmarks get it completely wrong...
  • Fastest real world speed - Real World Speed measures performance for typical consumers.
  • Best value for money - Value for money is based on real world performance, price and capacity.
  • Raw speed comparison - Raw speed readings.
  • Details ordered by value - Detailed performance stats ordered by overall value for money.


929 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

The Best.
Intel Core i7-8700K $320Nvidia GTX 1070 $413Samsung 850 Evo 250GB $104
AMD Ryzen 5 1600 $160Nvidia GTX 1060-6GB $250Samsung 850 Evo 500GB $125
Intel Core i5-8600K $222AMD RX 480 $280Samsung 850 Pro 256GB $125
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $177SanDisk Extreme 64GB $44
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $911SanDisk Extreme 32GB $30
Seagate Barracuda 2TB (2016) $59HyperX Fury DDR4 2133 C14 2x8GB $226SanDisk Ultra Fit 32GB $12
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