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Samsung

PM851 M.2 2280 128GB

▲ 500 ▼

Release date ≈ Q1 2015.

VS

Average Bench: 53.7% (785th of 1003)

Based on 858 user benchmarks.  Model: SAMSUNG SSD PM851 M.2 2280 128GB
Poor: 37%Average: 53.7% Great: 69%

Popular builds with this SSD

Average average bench

The Samsung PM851 M.2 2280 128GB averaged 46.2% 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 Read Speed 22.1MB/s
Avg. 4K-64Thread Read Speed 253MB/s

Above average consistency

The range of scores (95th - 5th percentile) for the Samsung PM851 M.2 2280 128GB is 31.5%. This is a relatively narrow range which indicates that the Samsung PM851 M.2 2280 128GB performs reasonably consistently under varying real world conditions.

Weaknesses

Avg. Sustained Write Speed 87.7MB/s
Avg. Sequential Write Speed 94.8MB/s
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Average Bench

(Based on 858 samples)
Rank 78553.7%
Min Avg Max
327 Read 444 494
28.3 Write 94.8 137
48.5 Mixed 129 211
27.1 SusWrite 87.7 133
41% 189 MB/s
Min Avg Max
12.2 4K Read 22.1 28.4
21.5 4K Write 47 78.3
7.52 4K Mixed 15 22.9
77.6% 28 MB/s
Min Avg Max
21.8 DQ Read 253 363
29.1 DQ Write 92.2 140
8.24 DQ Mixed 39 64.1
64% 128 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
69GB free (System drive)
Firmware: EXT25D0Q
SusWrite @10s intervals: 126 120 121 130 132 131 MB/s
72.7% Very good
Read 474
Write 136
Mixed 152
SusWrite 127
48% 222 MB/s
4K Read 28.8
4K Write 83
4K Mixed 24.7
119% 45.5 MB/s
DQ Read 340
DQ Write 134
DQ Mixed 59.3
91% 177 MB/s
69GB free (System drive)
Firmware: EXT25D0Q
SusWrite @10s intervals: 123 126 118 129 131 131 MB/s
68.7% Good
Read 462
Write 133
Mixed 140
SusWrite 126
47% 215 MB/s
4K Read 25.5
4K Write 68.2
4K Mixed 23.4
105% 39 MB/s
DQ Read 361
DQ Write 136
DQ Mixed 63.6
96% 187 MB/s
55GB free (System drive)
Firmware: EXT25D0Q
SusWrite @10s intervals: 99 102 101 101 21 20 MB/s
59.9% Above average
Read 457
Write 95.8
Mixed 119
SusWrite 74.1
40% 187 MB/s
4K Read 23.4
4K Write 58.4
4K Mixed 19.9
92% 33.9 MB/s
DQ Read 331
DQ Write 103
DQ Mixed 57
84% 164 MB/s
10GB free (System drive)
Firmware: EXT25D0Q
SusWrite @10s intervals: 34 29 30 27 27 28 MB/s
53.3% Above average
Read 459
Write 38
Mixed 50
SusWrite 29.1
31% 144 MB/s
4K Read 24.6
4K Write 33.2
4K Mixed 21.9
83% 26.6 MB/s
DQ Read 327
DQ Write 25.7
DQ Mixed 40.9
64% 131 MB/s
858 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 15,781,594 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 PM851 M.2 2280 128GB Builds (Compare 1,520 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 14%
Tree trunk
Desktop
Desktop 50%
Yacht
Workstation
Workstation 35%
Jet ski

System: Alienware 17 R2

CPU
Core i7-4710HQIntelBench 59%, 40,516 samples717x
Core i7-4720HQIntelBench 61%, 44,855 samples556x
Core i7-4980HQIntelBench 68%, 982 samples246x
GPU
HD 4600 (Mobile 1.15 GHz)IntelBench 5%, 172,492 samples660x
GTX 980MNvidiaBench 50%, 8,529 samples339x
GTX 970MNvidiaBench 39%, 14,180 samples288x
SSD
PM851 M.2 2280 128GBSamsungBench 54%, 858 samples173x
RAM
HMT41GS6BFR8A-PB 2x8GBHynixBench 53%, 17,649 samples392x
M471B1G73EB0-YK0 2x8GBSamsungBench 52%, 4,751 samples186x
HMT451S6BFR8A-PB 2x4GBHynixBench 48%, 17,747 samples152x
EDIT WITH CUSTOM PC BUILDER

Popular PM851 M.2 2280 128GB systems:

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

  • - 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.
  • - 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.
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  • - Compare your in-game FPS to other users with your hardware.
  • - Share your opinion by voting.
Solid State Drive Rankings (Price vs Performance) July 2019 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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1003 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 i7-8700K $350Nvidia GTX 1070 $400Samsung 850 Evo 250GB $104
AMD Ryzen 5 2600 $127Nvidia GTX 1060-6GB $250Samsung 850 Evo 500GB $103
AMD Ryzen 7 2700X $248Nvidia GTX 1080-Ti $808Samsung 850 Pro 256GB $97
HDDRAMUSB
Seagate Barracuda 1TB (2016) $40Corsair Vengeance LPX DDR4 3000 C15 2x8GB $68SanDisk Extreme 64GB $45
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $606SanDisk Extreme 32GB $48
WD Blue 1TB (2012) $39Corsair Vengeance LPX DDR4 3200 C16 2x8GB $78SanDisk Ultra Fit 32GB $12
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