SamsungMZ-7PD256BW
OCZVTR150-25SAT3-240G
$246

Controller: Samsung 3-core MDX. Flash Memory: Samsung 21nm Toggle Mode MLC.

 $246 

Controller: OCZ Barefoot 3 M00. Flash: Toshiba 19nm (1st gen) MLC NAND.

Real World Speed
Performance profile from 16,800 user samples
16,172 User Benchmarks
Best Bench: 107% 24GB free
Worst Bench: 54% 132GB free
Poor: 54% Great: 107%
SPEED RANK: 146th / 859
628 User Benchmarks
Best Bench: 114% 184GB free
Worst Bench: 63% 9GB free
Poor: 63% Great: 114%
SPEED RANK: 85th / 859
Effective Speed
Effective SSD Speed
83.1 % -8% 89.8 % Slightly faster effective speed.
+8%
Read
Avg. Sequential Read Speed
487 MB/s -0% 488 MB/s +0%
Write
Avg. Sequential Write Speed
356 MB/s -25% 446 MB/s Faster write speed.
+25%
4K Read
Avg. 4K Random Read Speed
28.8 MB/s Much faster random read.
+33%
21.6 MB/s -33%
4K Write
Avg. 4K Random Write Speed
78.4 MB/s -9% 85.2 MB/s Slightly faster random write.
+9%
Mixed
Avg. Sequential Mixed IO Speed
388 MB/s -20% 464 MB/s Faster mixed IO speed.
+20%
4K Mixed
Avg. 4K Random Mixed IO Speed
22 MB/s -20% 26.4 MB/s Faster random mixed IO.
+20%
Read
Peak Sequential Read Speed
524 MB/s +1% 521 MB/s -1%
Write
Peak Sequential Write Speed
492 MB/s -2% 502 MB/s +2%
4K Read
Peak 4K Random Read Speed
36.4 MB/s Much faster peak random read.
+35%
27 MB/s -35%
4K Write
Peak 4K Random Write Speed
117 MB/s -13% 132 MB/s Slightly faster peak random write.
+13%
Mixed
Peak Sequential Mixed IO Speed
508 MB/s -0% 509 MB/s +0%
4K Mixed
Peak 4K Random Mixed IO Speed
28.6 MB/s -36% 39 MB/s Much faster peak random mixed IO.
+36%
Market Share
Based on 3,856,388 SSDs tested.
Market Share
Market Share (trailing 30 days)
0.8 % Insanely higher market share.
+7,900%
0.01 % -7,900%
Value
Value For Money
43.8 % +3% 42.6 % -3%
User Rating
UBM User Rating
64 % +5% 61 % -5%
Price
Price (score)
$228 Slightly cheaper.
+7%
$246 -7%
Age
Newest
59 Months -22% 46 Months More recent.
+22%
DQ Read
Peak 4K-64Thread Read Speed
373 MB/s +2% 365 MB/s -2%
DQ Write
Peak 4K-64Thread Write Speed
318 MB/s -10% 351 MB/s Slightly faster peak deep queue write.
+10%
AS-SSD Total
AS-SSD Total Score
1,194 Pts -2% 1,212 Pts +2%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
88.8 MB/s -12% 99.9 MB/s Slightly faster peak deep queue mixed IO.
+12%
ADQ Read
Avg. 4K-64Thread Read Speed
194 MB/s -3% 200 MB/s +3%
ADQ Write
Avg. 4K-64Thread Write Speed
183 MB/s -17% 214 MB/s Faster deep queue write.
+17%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
52.2 MB/s -18% 61.4 MB/s Faster deep queue mixed IO.
+18%
Capacity
Capacity
256GB 240GB
ADVERTISEMENT

The 840 Pro is stunning. Samsung have created a completely in-house package including both the controller and their own new 21nm toggle mode NAND. On release (Oct '12) this was the fastest performing deep queue depth consumer grade SSD available. Fast forward six months (Apr '13) and the 840 Pro still holds both the random read/write deep queue depth speed records of 384 MB/s and 326 MB/s, impressive considering how fast the SSD space tends to move. There are no obvious weaknesses, in-fact the 840 pro takes first place in nearly all of the speed categories and is only seriously rivalled by one drive, the OCZ Vector. To conclude, in terms of both outright performance, particularly server orientated, and value for money the 256GB and 128GB 840 Pros are amongst the top handful of drives currently available. [Jun '13 SSDrivePro]

MORE DETAILS

Comparing the 150 to the original Vector is disappointing, the newer 150 actually offers marginally worse performance than its predecessor. A strange result but verified (at least partly) by figures on OCZ's own website: 100K 4K read IOPS for the Vector vs 90K 4K read IOPS for the 150. The newer 150 comes with a 5 year warranty which covers 50GB/day vs. the original Vectors 20GB/day but even this should be taken with a pinch of salt considering that the OCZ stock price is currently trading at around seven cents per share, an all time low. Despite the fact that new Vector 150 performs worse than its predecessor it's still a very competent performer and if prices drop, it has the potential to become a decent value proposition. In the meantime however there are far better deals available elsewhere.  [Dec '13 SSDrivePro]

MORE DETAILS

Solid State Drive Rankings (Price vs Performance) September 2017 SSD Rankings.

Welcome to our consumer SSD comparison. We calculate effective speed based on real world performance then adjust by cost per GB to yield a value for money rating. Calculated values don't always tell the whole picture so we check them against thousands of individual user ratings. The customizable table below combines these factors and more to bring you the definitive list of top SSDs. Share your opinion by voting. [SSDrivePro]

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 (UBM).
  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
  • - Drive tests include: read, write and mixed IO.
  • - Checks include: 4k Align, NCQ, TRIM, SATA, USB & S.M.A.R.T.
  • - 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 highest voted in class.
  • - Find the best upgrades.
  • - Share your opinion by voting.

 Frequently Asked Questions

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CPUGPUSSD
Intel Core i7-7700K $295Nvidia GTX 1070 $410Samsung 850 Evo 250GB $97
AMD Ryzen 7 1700 $270AMD RX 480 $350Samsung 850 Pro 256GB $120
Intel Core i5-7600K $210Nvidia GTX 1060-6GB $265Samsung 850 Evo 500GB $150
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45G.SKILL Trident Z DDR4 3200 C14 4x16GB $724SanDisk Extreme 64GB $33
Seagate Barracuda 3TB (2016) $77Corsair Vengeance LPX DDR4 3000 C15 2x8GB $152SanDisk Extreme 32GB $22
Seagate Barracuda 7200.14 1TB $56HyperX Fury DDR4 2133 C14 2x8GB $141SanDisk Extreme 16GB $20
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