SamsungMZ-7PD256BW
OCZVTR1-25SAT3-256G
$240

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

 $240 

Controller: Indilinx Barefoot 3 IDX500M00-BC. Flash Memory: IMFT Synchronous 25nm MLC.

Real World Speed
Performance profile from 13,356 user samples
12,914 User Benchmarks
Best Bench: 107% 218GB free
Worst Bench: 56% 1GB free
Poor: 56% Great: 107%
SPEED RANK: 140th / 850
442 User Benchmarks
Best Bench: 118% 130GB free
Worst Bench: 64% 16GB free
Poor: 64% Great: 118%
SPEED RANK: 62nd / 850
Effective Speed
Effective SSD Speed
83.4 % -13% 94.6 % Slightly faster effective speed.
+13%
Read
Avg. Sequential Read Speed
490 MB/s -0% 491 MB/s +0%
Write
Avg. Sequential Write Speed
352 MB/s -30% 457 MB/s Faster write speed.
+30%
4K Read
Avg. 4K Random Read Speed
28.9 MB/s Faster random read.
+20%
24 MB/s -20%
4K Write
Avg. 4K Random Write Speed
78.8 MB/s -18% 92.9 MB/s Faster random write.
+18%
Mixed
Avg. Sequential Mixed IO Speed
383 MB/s -22% 467 MB/s Faster mixed IO speed.
+22%
4K Mixed
Avg. 4K Random Mixed IO Speed
22.3 MB/s -30% 28.9 MB/s Faster random mixed IO.
+30%
Read
Peak Sequential Read Speed
524 MB/s 0% 524 MB/s 0%
Write
Peak Sequential Write Speed
495 MB/s -2% 504 MB/s +2%
4K Read
Peak 4K Random Read Speed
36.6 MB/s Faster peak random read.
+27%
28.9 MB/s -27%
4K Write
Peak 4K Random Write Speed
118 MB/s -16% 137 MB/s Faster peak random write.
+16%
Mixed
Peak Sequential Mixed IO Speed
508 MB/s 0% 508 MB/s 0%
4K Mixed
Peak 4K Random Mixed IO Speed
29.3 MB/s -41% 41.3 MB/s Much faster peak random mixed IO.
+41%
Market Share
Based on 2,813,985 SSDs tested.
Market Share
Market Share (trailing 30 days)
0.87 % Insanely higher market share.
+2,800%
0.03 % -2,800%
Value
Value For Money
44.5 % -8% 48 % Slightly better value.
+8%
User Rating
UBM User Rating
64 % More popular.
+16%
55 % -16%
Price
Price (score)
$224 Slightly cheaper.
+7%
$240 -7%
Age
Newest
55 Months -4% 53 Months +4%
DQ Read
Peak 4K-64Thread Read Speed
375 MB/s -2% 382 MB/s +2%
DQ Write
Peak 4K-64Thread Write Speed
322 MB/s -10% 354 MB/s Slightly faster peak deep queue write.
+10%
AS-SSD Total
AS-SSD Total Score
1,202 Pts -4% 1,250 Pts +4%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
90.7 MB/s -32% 120 MB/s Much faster peak deep queue mixed IO.
+32%
ADQ Read
Avg. 4K-64Thread Read Speed
194 MB/s -11% 216 MB/s Slightly faster deep queue read.
+11%
ADQ Write
Avg. 4K-64Thread Write Speed
188 MB/s -23% 232 MB/s Faster deep queue write.
+23%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
53.2 MB/s -45% 77.4 MB/s Much faster deep queue mixed IO.
+45%
Capacity
Capacity
256GB 256GB
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

This is the first solid state drive to feature OCZ's in-house Indilinx Barefoot 3 (IDX500M00-BC) controller and what a debut it proved to be. OCZ still use third party memory (Intel Micron Synchronous 25nm MLC) so unlike the Samsung 840 Pro the Vector is not built 100% in house. There have been several SSDs released recently, each slightly besting the other in some small corner of benchmark space. First the Corsiar Neutron GTX, then the Samsung 840 Pro and now the Vector which currently holds the crown for sequential write and 4K write. In terms of overall performance the Vector achieved a real world speed of 578.8 MB/s and an AS-SSD score of 1243 both are spectacular results that firmly place the vector amongst the top two or three performance SSD's currently available. In terms of raw performance the only alternative is the Samsung 840 Pro[Jun '13 SSDrivePro]

MORE DETAILS

Solid State Drive Rankings (Price vs Performance) May 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 $309Nvidia GTX 1070 $368Samsung 850 Evo 250GB $98
AMD Ryzen 7 1700 $300AMD RX 480 $210Samsung 850 Pro 256GB $138
Intel Core i5-7600K $240Nvidia GTX 1060-6GB $230Samsung 850 Evo 500GB $167
HDDRAMUSB
Seagate Barracuda 1TB (2016) $50Corsair Vengeance LPX DDR4 3000 C15 2x8GB $127SanDisk Extreme 64GB $33
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $700SanDisk Extreme 32GB $22
Seagate Barracuda 7200.14 1TB $46Corsair Vengeance LPX DDR4 3200 C16 2x8GB $130SanDisk Ultra Fit 32GB $13
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