Samsung

PM951 NVMe PCIe M.2 512GB 1TB

PM951 NVMe PCIe M.2 512GB 1T...
BENCHMARKS (2,610)
MKT (0%)
BUILDS
(0)

Effective Speed +58% Effective Speed 58%Average Score +45% Read 111%, Write 59%, 4K Read 5%, 4K Write 23%, Mixed 27%, 4K Mixed -18%, SusWrite 111%Peak Score +53% Read 119%, Write 73%, 4K Read -4%, 4K Write 27%, Mixed 31%, 4K Mixed -11%, SusWrite 139%Value & Sentiment User Rating -14%, Market Share -∞%Nice To Haves +117% DQ Read 186%, DQ Write 131%, DQ Mixed 126%, ADQ Read 150%, ADQ Write 90%, ADQ Mixed 128%, Age -8%, AS-SSD Total 132%

Average Bench: 155% (148^th of 1072)

Based on 2,610 user benchmarks. Models: NVMe PM951 NVMe SAMSU, PM951 NVMe SAMSUNG 1024GB

Poor: 93%Average: 155% Great: 201%

Popular builds with this SSD

Outstanding average bench

The Samsung PM951 NVMe PCIe M.2 512GB 1TB averaged 55.3% higher than the peak scores attained by the group leaders. This is an excellent result which ranks the Samsung PM951 NVMe PCIe M.2 512GB 1TB near the top of the comparison list.

Strengths

Avg. 4K-64Thread Mixed IO Speed 594MB/s

Avg. 4K-64Thread Read Speed 817MB/s

See where your SSD ranks →

Terrible consistency

The range of scores (95th - 5th percentile) for the Samsung PM951 NVMe PCIe M.2 512GB 1TB is 108%. This is a particularly wide range which indicates that the Samsung PM951 NVMe PCIe M.2 512GB 1TB performs inconsistently under varying real world conditions.

Weaknesses

Avg. Sequential Mixed IO Speed 456MB/s

Avg. Sustained Write Speed 625MB/s

Average Bench

(Based on 2,610 samples)

Rank 148155%

Min	Avg	Max
623	Read 966	1,112
238	Write 644	837
290	Mixed 456	555
136	SusWrite 625	927
150% 673 MB/s

Min	Avg	Max
18.6	4K Read 36.1	41.2
44.6	4K Write 108	155
16.2	4K Mixed 38.1	52.7
160% 60.6 MB/s

Min	Avg	Max
250	DQ Read 817	1,049
125	DQ Write 549	827
177	DQ Mixed 594	750
467% 653 MB/s

User Benchmarks

Bench

Sequential

Random 4k

Deep queue 4k

The fastest SSD (mainstream) averages a speed of 100%

ESP-User, 13 days ago.

952GB free

Firmware: BXV77D0Q Max speed: PCIe 16,000 MB/s

SusWrite @10s intervals: 942 939 937 933 931 922 MB/s

208% Outstanding

Write 831

Mixed 547

SusWrite 934

192% 856 MB/s

4K Read 41.5

4K Write 155

4K Mixed 54.5

215% 83.8 MB/s

DQ Read 1,046

DQ Write 826

DQ Mixed 748

611% 873 MB/s

GBR-User, 14 days ago.

772GB free

Firmware: BXV77D0Q Max speed: PCIe 16,000 MB/s

SusWrite @10s intervals: 931 932 934 932 930 922 MB/s

185% Outstanding

Write 834

Mixed 538

SusWrite 930

191% 852 MB/s

4K Read 40.8

4K Write 89.8

4K Mixed 46.9

170% 59.2 MB/s

DQ Read 1,050

DQ Write 409

DQ Mixed 660

506% 706 MB/s

POL-User, 19 days ago.

954GB free

Firmware: BXV77D0Q Max speed: PCIe 16,000 MB/s

SusWrite @10s intervals: 927 927 929 930 929 890 MB/s

167% Outstanding

Write 836

Mixed 529

SusWrite 922

180% 801 MB/s

4K Read 34.5

4K Write 94.3

4K Mixed 42.6

157% 57.1 MB/s

DQ Read 634

DQ Write 522

DQ Mixed 573

430% 577 MB/s

GBR-User, 26 days ago.

398GB free (System drive)

Firmware: BXV77D0Q Max speed: PCIe 16,000 MB/s

SusWrite @10s intervals: 823 821 837 867 885 880 MB/s

133% Outstanding

Write 808

Mixed 452

SusWrite 852

163% 725 MB/s

4K Read 18.4

4K Write 48.9

4K Mixed 29

91% 32.1 MB/s

DQ Read 529

DQ Write 413

DQ Mixed 469

351% 470 MB/s

MEX-User, 17 days ago.

32GB free (System drive)

Firmware: BXV77D0Q Max speed: PCIe 16,000 MB/s

SusWrite @10s intervals: 297 274 276 263 262 249 MB/s

107% Outstanding

Write 357

Mixed 324

SusWrite 270

107% 486 MB/s

4K Read 32.8

4K Write 44.9

4K Mixed 22.1

102% 33.3 MB/s

DQ Read 698

DQ Write 208

DQ Mixed 59.4

146% 322 MB/s

2,610 MORE »

Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 75,664,363 SSDs tested

Custom PC Builder (Start a new build) Build your perfect PC: compare component prices, popularity, speed and value for money

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CPU

GPU

SSD

HDD

RAM

MBD

Typical PM951 NVMe PCIe M.2 512GB 1TB Builds (Compare 1,707 builds) See popular component choices, score breakdowns and rankings

Gaming 10%

Tree trunk

Desktop 59%

Gunboat

Workstation 10%

Tree trunk

System: Dell XPS 15 9550

CPU
Core i7-6700HQIntelBench 59%, 320,434 samples	1,509x
Core i5-6300HQIntelBench 54%, 41,531 samples	193x
Core i3-6100HIntelBench 56%, 313 samples	5x

GPU
HD 530 (Mobile Skylake)IntelBench 5%, 213,495 samples	1,179x
GTX 960MNvidiaBench 16%, 73,363 samples	504x
GTX 1080-TiNvidia $485Bench 124%, 840,268 samples	4x

SSD
PM951 NVMe PCIe M.2 512GB 1TBSamsungBench 155%, 2,610 samples	88x

RAM
HMA41GS6AFR8N-TF 2x8GBHynixBench 70%, 55,289 samples	430x
16ATF1G64HZ-2G1A2 2x8GBMicronBench 69%, 6,021 samples	142x
HMA451S6AFR8N-TF 2x4GBHynixBench 66%, 17,761 samples	108x

EDIT WITH CUSTOM PC BUILDER

Popular PM951 NVMe PCIe M.2 512GB 1TB systems:

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.

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- Download and run UserBenchmark
- CPU tests include: integer, floating and string
- GPU tests include: six 3D game simulations
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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]

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.

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 »

CPU	GPU	SSD
Intel Core i5-13600K $279	Nvidia RTX 4060 $300	Crucial MX500 250GB $40
Intel Core i5-12400F $134	Nvidia RTX 4060-Ti $385	Samsung 850 Evo 120GB $80
Intel Core i5-12600K $182	Nvidia RTX 4070 $409	Samsung 860 Evo 250GB $52

HDD	RAM	USB
Seagate Barracuda 1TB (2016) $39	Corsair Vengeance LPX DDR4 3200 C16 2x8GB $40	SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $30	Corsair Vengeance LPX DDR4 3000 C15 2x8GB $43	SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $51	G.SKILL Trident Z DDR4 3200 C14 4x16GB $351	SanDisk Ultra Fit 32GB $16

Samsung

PM951 NVMe PCIe M.2 512GB 1TB

Average Bench: 155% (148^th of 1072)

Popular builds with this SSD

Outstanding average bench

Strengths

Terrible consistency

Weaknesses

Average Bench

Market Share (See Leaders)

CHOOSE A COMPONENT:

System: Dell XPS 15 9550

Popular PM951 NVMe PCIe M.2 512GB 1TB systems:

UserBenchmark of the month

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Samsung

PM951 NVMe PCIe M.2 512GB 1TB

Average Bench: 155% (148th of 1072)

Popular builds with this SSD

Outstanding average bench

Strengths

Terrible consistency

Weaknesses

Average Bench

Market Share (See Leaders)

CHOOSE A COMPONENT:

System: Dell XPS 15 9550

Popular PM951 NVMe PCIe M.2 512GB 1TB systems:

UserBenchmark of the month

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Group Test Results

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Average Bench: 155% (148^th of 1072)