SamsungMZ-7PD128BW
CrucialCT120M500SSD1

Controller: Samsung 3-core MDX. Flash Memory: Samsung 21nm Toggle Mode MLC. Release date: Q4 2012.

Controller: Marvell 88SS9187. Flash Memory: Micron Synchronous 20nm MLC. Release date: Q1 2013.

Real World Speed
Performance profile from 47,094 user samples
32,384 User Benchmarks
Best Bench: 110% 119GB free
Worst Bench: 63% 96GB free (System drive)
Poor: 63% Great: 110%
SPEED RANK: 320th / 1058
14,710 User Benchmarks
Best Bench: 77% 39GB free
Worst Bench: 48% 9GB free (System drive)
Poor: 48% Great: 77%
SPEED RANK: 708th / 1058
Effective Speed
Effective SSD Speed
90 % Much faster effective speed.
+37%
65.9 %
Read
Avg. Sequential Read Speed
448 MB/s Faster read speed.
+11%
404 MB/s
Write
Avg. Sequential Write Speed
338 MB/s Hugely faster write speed.
+154%
133 MB/s
4K Read
Avg. 4K Random Read Speed
31 MB/s Much faster random read.
+38%
22.5 MB/s
4K Write
Avg. 4K Random Write Speed
81.6 MB/s +3% 79 MB/s
Mixed
Avg. Sequential Mixed IO Speed
268 MB/s Much faster mixed IO speed.
+37%
196 MB/s
4K Mixed
Avg. 4K Random Mixed IO Speed
36.2 MB/s Faster random mixed IO.
+19%
30.3 MB/s
SusWrite
Avg. Sustained Write Speed
287 MB/s Hugely faster sustained write speed.
+176%
104 MB/s
Read
Peak Sequential Read Speed
496 MB/s Faster peak read speed.
+13%
439 MB/s
Write
Peak Sequential Write Speed
444 MB/s Hugely faster peak write speed.
+217%
140 MB/s
4K Read
Peak 4K Random Read Speed
36.3 MB/s Much faster peak random read.
+36%
26.7 MB/s
4K Write
Peak 4K Random Write Speed
113 MB/s +3% 110 MB/s
Mixed
Peak Sequential Mixed IO Speed
327 MB/s Much faster peak mixed IO speed.
+58%
207 MB/s
4K Mixed
Peak 4K Random Mixed IO Speed
43.9 MB/s Faster peak random mixed IO.
+19%
36.9 MB/s
SusWrite
Peak Sequential Sustained Write 60s Average
440 MB/s Hugely faster peak sustained write speed.
+221%
137 MB/s
Market Share
Based on 45,447,111 SSDs tested.
Market Share
Market Share (trailing 30 days)
0.05 % Much higher market share.
+67%
0.03 %
Value
Value For Money
4.95 % Much better value.
+36%
3.63 %
User Rating
UBM User Rating
54 % +2% 53 %
Price
Price (score)
$160 $150 Slightly cheaper.
+6%
Age
Newest
105 Months 100 Months +5%
DQ Read
Peak 4K-64Thread Read Speed
376 MB/s Much faster peak deep queue read.
+45%
259 MB/s
DQ Write
Peak 4K-64Thread Write Speed
328 MB/s Hugely faster peak deep queue write.
+134%
140 MB/s
AS-SSD Total
AS-SSD Total Score
1,194 Pts Much stronger server IO.
+58%
757 Pts
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
155 MB/s 159 MB/s +3%
ADQ Read
Avg. 4K-64Thread Read Speed
329 MB/s Much faster deep queue read.
+37%
241 MB/s
ADQ Write
Avg. 4K-64Thread Write Speed
245 MB/s Hugely faster deep queue write.
+94%
126 MB/s
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
123 MB/s 132 MB/s Slightly faster deep queue mixed IO.
+7%
Capacity
Capacity
128GB 120GB
ADVERTISEMENT

The 128GB 840 Pro is a rock solid performer. On release, nearly a year and a half ago, the Pro smashed several speed records. Today, with sequential read/write speeds of 519/438 MBps, the Pro is still one of the fastest SSDs available. One of the Pro's top competitors is Samsungs own, newer 840 Evo. Looking at a raw synthetic speed comparison of the 128GB Pro and Evo is a little misleading. On the face of it the Pro only has a marginal lead over the Evo. This due to the fact that the Evo can only maintain its burst write speed for transfers of up to 3GB, the size of its SLC cache. The Pro on the other hand can sustain higher throughputs indefinitely. The Pro also utilizes MLC which is rated for far more erase cycles than the TLC used in the Evo. Server IO is often continuous and would quickly exhaust the 3GB cache on the Evo but for typical consumer use the Evo will remain within the SLC cache most of the time. [Feb '14 SSDrivePro]

MORE DETAILS

The 120GB M500 is successor to the phenomenally successful Crucial M4. The M500 was poised to win loyal M4 customers but as it turns out the new M500 is worse for typical consumer use than the now nearly three years old M4. There are some cosmetic performance improvements over the M4 but they are purely synthetic. For example, deep queue speeds are significantly improved and the newer M500 handles mixed IO far better. Consumers require decent sequential read/write speeds which average 435/185 MB/s on the M4 vs 395/134 MB/s on the M500! Other manufacturers have come leaps and bounds over the last three years which has raised the performance bar is several notches. In today's market the new M500 simply cannot compete on performance, it doesn't even come close to the likes of the Samsung Evo or OCZ Vector 150. The M500, however, is one of the cheapest mainstream SSDs available at this time but it's easy to justify spending just a little more for a lot more performance. [Feb '14 SSDrivePro]

MORE DETAILS

Solid State Drive Rankings (Price vs Performance) July 2021 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.
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.

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.

 Frequently Asked Questions

 Best User Rated

The Best.
CPUGPUSSD
Intel Core i5-11400F $260Nvidia RTX 3070 $500Crucial MX500 250GB $45
Intel Core i5-11600K $270Nvidia RTX 3060-Ti $400Samsung 860 Evo 250GB $52
Intel Core i7-11700K $380Nvidia GTX 1660S (Super) $240Samsung 850 Evo 120GB $183
HDDRAMUSB
Seagate Barracuda 1TB (2016) $39Corsair Vengeance LPX DDR4 3200 C16 2x8GB $79SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $34Corsair Vengeance LPX DDR4 3000 C15 2x8GB $80SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Ultra Fit 32GB $16
Today's hottest deals
About  •  User Guide  •  FAQs  •  Email  •  Privacy  •  Developer  •  YouTube Feedback