SamsungMZ-77E4T0B
SanDiskSDSSDXPS-240G

Controller: Samsung MKX. Memory: Samsung 128 layer TLC V-NAND. Release date ≈ Q1 2021.

Controller: Marvell 88SS9187-BLD2. Flash Memory: SanDisk 19nm eX2 ABL MLC. Release date: Q2 2014.

Real World Speed
Performance profile from 8,613 user samples
513 User Benchmarks
Best Bench: 137% 3.5TB free
Worst Bench: 94% 3.5TB free
Poor: 94% Great: 137%
SPEED RANK: 184th / 1058
8,100 User Benchmarks
Best Bench: 113% 184GB free (System drive)
Worst Bench: 67% 97GB free (System drive)
Poor: 67% Great: 113%
SPEED RANK: 288th / 1058
Effective Speed
Effective SSD Speed
118 % Faster effective speed.
+27%
92.4 %
Read
Avg. Sequential Read Speed
491 MB/s Slightly faster read speed.
+6%
463 MB/s
Write
Avg. Sequential Write Speed
449 MB/s Slightly faster write speed.
+9%
412 MB/s
4K Read
Avg. 4K Random Read Speed
42.7 MB/s Much faster random read.
+47%
29.1 MB/s
4K Write
Avg. 4K Random Write Speed
93 MB/s Faster random write.
+24%
74.7 MB/s
Mixed
Avg. Sequential Mixed IO Speed
429 MB/s Much faster mixed IO speed.
+63%
263 MB/s
4K Mixed
Avg. 4K Random Mixed IO Speed
56.4 MB/s Much faster random mixed IO.
+66%
33.9 MB/s
SusWrite
Avg. Sustained Write Speed
446 MB/s Faster sustained write speed.
+24%
361 MB/s
Read
Peak Sequential Read Speed
518 MB/s +2% 509 MB/s
Write
Peak Sequential Write Speed
493 MB/s +3% 480 MB/s
4K Read
Peak 4K Random Read Speed
49.3 MB/s Much faster peak random read.
+39%
35.4 MB/s
4K Write
Peak 4K Random Write Speed
126 MB/s Faster peak random write.
+14%
111 MB/s
Mixed
Peak Sequential Mixed IO Speed
462 MB/s Much faster peak mixed IO speed.
+48%
313 MB/s
4K Mixed
Peak 4K Random Mixed IO Speed
68.9 MB/s Much faster peak random mixed IO.
+64%
42.1 MB/s
SusWrite
Peak Sequential Sustained Write 60s Average
493 MB/s +3% 478 MB/s
Market Share
Based on 47,043,095 SSDs tested.
Market Share
Market Share (trailing 30 days)
0.01 % 0.02 % Hugely higher market share.
+100%
Value
Value For Money
34.9 % Hugely better value.
+152%
13.8 %
User Rating
UBM User Rating
50 % 54 % Slightly more popular.
+8%
Price
Price (score)
$529 $79 Hugely cheaper.
+85%
Age
Newest
7+ Months Hugely more recent.
+92%
87 Months
DQ Read
Peak 4K-64Thread Read Speed
388 MB/s +3% 378 MB/s
DQ Write
Peak 4K-64Thread Write Speed
362 MB/s Slightly faster peak deep queue write.
+6%
341 MB/s
AS-SSD Total
AS-SSD Total Score
1,294 Pts Slightly stronger server IO.
+7%
1,213 Pts
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
373 MB/s Hugely faster peak deep queue mixed IO.
+126%
165 MB/s
ADQ Read
Avg. 4K-64Thread Read Speed
308 MB/s 317 MB/s +3%
ADQ Write
Avg. 4K-64Thread Write Speed
266 MB/s +0% 265 MB/s
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
281 MB/s Hugely faster deep queue mixed IO.
+92%
146 MB/s
Capacity
Capacity
4TB 240GB
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The 240GB Sandisk Extreme Pro uses the same controller and NAND as its 13 months younger predecessor, the Extreme II. Comparing the Extreme II and Extreme Pro shows that average performance has increased by 10% but peak performance remains broadly unchanged. The Pro features an improved nCache which uses an SLC buffer to cache writes prior to writing them to the slower MLC NAND. In order to benefit from this improved caching, huge amounts of data need to be written for extended periods, an unlikely consumer scenario. Comparing core performance between the Samsung 840 Evo and Extreme Pro shows that the Extreme Pro averages around 12% faster than the Evo. The Extreme Pro also has a 10 year warranty but I wonder if SATA 3 will even be around at that time. Although the Extreme Pro has a superb performance profile it's not a game changer. [Jun '14 SSDrivePro]

MORE DETAILS

Solid State Drive Rankings (Price vs Performance) September 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]

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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.
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 i5-11600K $270Nvidia RTX 3060-Ti $400Crucial MX500 250GB $45
Intel Core i5-11400F $260Nvidia RTX 3070 $500Samsung 850 Evo 120GB $183
Intel Core i7-11700K $346Nvidia GTX 1660S (Super) $240Samsung 860 Evo 250GB $52
HDDRAMUSB
Seagate Barracuda 1TB (2016) $40Corsair Vengeance LPX DDR4 3200 C16 2x8GB $78SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $35Corsair Vengeance LPX DDR4 3000 C15 2x8GB $77SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Ultra Fit 32GB $16
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