TEST
YOUR SSD
ADD TO PC
BUILD

Sm951

NVMe SAMSUNG 256GB

▲ 500 ▼

Release date ≈ Q3 2016.

Average Bench: 188% (111th of 1072)

Based on 346 user benchmarks.  Model: SM951 NVMe SAMSUNG 256GB
Poor: 115%Average: 188% Great: 236%

Popular builds with this SSD

Outstanding average bench

The Sm951 NVMe SAMSUNG 256GB averaged 88.0% higher than the peak scores attained by the group leaders. This is an excellent result which ranks the Sm951 NVMe SAMSUNG 256GB near the top of the comparison list.

Strengths

Avg. 4K-64Thread Mixed IO Speed 384MB/s
Avg. Sequential Read Speed 1,465MB/s

Terrible consistency

The range of scores (95th - 5th percentile) for the Sm951 NVMe SAMSUNG 256GB is 121%. This is a particularly wide range which indicates that the Sm951 NVMe SAMSUNG 256GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. 4K-64Thread Write Speed 298MB/s
Avg. 4K Random Write Speed 112MB/s
ADVERTISEMENT

Average Bench

(Based on 346 samples)
Rank 111188%
Min Avg Max
689 Read 1,465 1,982
450 Write 1,003 1,234
443 Mixed 816 1,403
260 SusWrite 773 1,185
226% 1,014 MB/s
Min Avg Max
25.2 4K Read 40.7 50.5
49.4 4K Write 112 158
23.5 4K Mixed 47.2 63.3
181% 66.6 MB/s
Min Avg Max
37.8 DQ Read 714 1,228
116 DQ Write 298 387
27.1 DQ Mixed 384 572
317% 465 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
190GB free (System drive)
Firmware: BXW74D0Q Max speed: PCIe 16,000 MB/s
SusWrite @10s intervals: 1182 1147 1177 1206 1162 1215 MB/s
205% Outstanding
Read 1,315
Write 1,228
Mixed 730
SusWrite 1,182
250% 1,114 MB/s
4K Read 38.2
4K Write 97.5
4K Mixed 48.8
172% 61.5 MB/s
DQ Read 841
DQ Write 364
DQ Mixed 489
392% 564 MB/s
197GB free
Firmware: BXW75D0Q Max speed: PCIe 16,000 MB/s
SusWrite @10s intervals: 1073 1159 1173 1076 1238 1236 MB/s
189% Outstanding
Read 1,540
Write 1,228
Mixed 824
SusWrite 1,159
266% 1,188 MB/s
4K Read 33.6
4K Write 57
4K Mixed 39.5
132% 43.4 MB/s
DQ Read 450
DQ Write 270
DQ Mixed 390
282% 370 MB/s
100GB free (System drive)
Firmware: BXW75D0Q Max speed: PCIe 16,000 MB/s
SusWrite @10s intervals: 762 848 834 825 826 698 MB/s
181% Outstanding
Read 1,483
Write 1,139
Mixed 783
SusWrite 799
235% 1,051 MB/s
4K Read 37.4
4K Write 75.4
4K Mixed 45.9
155% 52.9 MB/s
DQ Read 768
DQ Write 352
DQ Mixed 492
383% 537 MB/s
84GB free (System drive)
Firmware: BXW74D0Q Max speed: PCIe 16,000 MB/s
SusWrite @10s intervals: 519 478 459 465 476 464 MB/s
171% Outstanding
Read 1,617
Write 995
Mixed 705
SusWrite 477
210% 948 MB/s
4K Read 42
4K Write 90.6
4K Mixed 47.2
172% 59.9 MB/s
DQ Read 821
DQ Write 282
DQ Mixed 438
353% 514 MB/s
107GB free (System drive)
Firmware: BXW75D0Q Max speed: PCIe 16,000 MB/s
SusWrite @10s intervals: 634 553 547 533 563 478 MB/s
155% Outstanding
Read 1,478
Write 996
Mixed 605
SusWrite 551
201% 908 MB/s
4K Read 29.2
4K Write 71.9
4K Mixed 41.3
135% 47.5 MB/s
DQ Read 634
DQ Write 268
DQ Mixed 466
341% 456 MB/s
235GB free
Firmware: BXW75D0Q Max speed: PCIe 16,000 MB/s
SusWrite @10s intervals: 1047 881 997 1114 832 385 MB/s
147% Outstanding
Read 1,065
Write 1,124
Mixed 692
SusWrite 876
211% 939 MB/s
4K Read 29.1
4K Write 55.6
4K Mixed 35.4
119% 40 MB/s
DQ Read 380
DQ Write 264
DQ Mixed 313
236% 319 MB/s
346 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 75,708,872 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 NVMe SAMSUNG 256GB Builds (Compare 5,224 builds) See popular component choices, score breakdowns and rankings
Gaming
Gaming 31%
Sail boat
Desktop
Desktop 81%
Aircraft carrier
Workstation
Workstation 27%
Raft

Motherboard: Dell Precision Tower 5810

CPU
Xeon E5-1620 v3IntelBench 72%, 10,197 samples1,240x
Xeon E5-1650 v3IntelBench 77%, 7,962 samples956x
Xeon E5-1650 v4IntelBench 83%, 3,842 samples408x
GPU
Quadro M4000NvidiaBench 32%, 9,043 samples414x
Quadro K2200Nvidia  $440Bench 16%, 13,860 samples386x
Quadro M2000NvidiaBench 21%, 5,678 samples287x
SSD
NVMe SAMSUNG 256GBSm951Bench 188%, 346 samples1x
RAM
HMA451R7MFR8N-TF 4x4GBHynixBench 90%, 1,961 samples349x
HMA41GR7MFR8N-TF 4x8GBHynixBench 96%, 1,319 samples208x
9ASF1G72PZ-2G3B1 4x8GBMicronBench 93%, 857 samples193x
EDIT WITH CUSTOM PC BUILDER

Popular NVMe SAMSUNG 256GB 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

Gaming Desktop ProGaming

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) April 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]

ADVERTISEMENT

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

Added n/a ago.
Your
opinion?
▲Like ▼Dislike
Ready to retire
Age: 7 years

Speed Comparisons

vs Crucial MX500 250GB
vs Samsung 850 Evo 120GB
vs Samsung 860 Evo 250GB
vs Samsung 870 Evo 250GB
vs Samsung 850 Pro 512GB
vs Samsung 850 Evo 250GB
vs HyperX Savage 240GB
vs Crucial MX300 275GB
vs Samsung 850 Evo 1TB

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 $273Nvidia RTX 4060 $300Crucial 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
If you make a purchase via one of these links, our site may earn a commission
Today's hottest
Amazon Ebay
deals
CPU GPU SSD HDD USB RAM MBD
Build Test EFps
Can You Run It?
►
YouTube
*NEW*
About  •  User Guide  •  FAQs  •  Email  •  Privacy  •  Developer  •  YouTube Feedback