Real World Speed
Performance profile from 13,467 user samples
13,467 User Benchmarks
Best Bench: 97% 50GB free
Worst Bench: 57% 11GB free
Poor: 57% Great: 97%
SPEED RANK: 265th / 921
Effective Speed
Effective SSD Speed
78.6 % +4% 75.5 %
Read
Avg. Sequential Read Speed
486 MB/s +4% 465 MB/s
Write
Avg. Sequential Write Speed
308 MB/s +5% 294 MB/s
4K Read
Avg. 4K Random Read Speed
28.8 MB/s +2% 28.2 MB/s
4K Write
Avg. 4K Random Write Speed
77.2 MB/s +2% 75.4 MB/s
Mixed
Avg. Sequential Mixed IO Speed
337 MB/s Slightly faster mixed IO speed.
+5%
320 MB/s
4K Mixed
Avg. 4K Random Mixed IO Speed
20.1 MB/s +1% 19.8 MB/s
Read
Peak Sequential Read Speed
521 MB/s +4% 501 MB/s
Write
Peak Sequential Write Speed
439 MB/s Faster peak write speed.
+28%
343 MB/s
4K Read
Peak 4K Random Read Speed
35.8 MB/s +0% 35.8 MB/s
4K Write
Peak 4K Random Write Speed
111 MB/s +2% 109 MB/s
Mixed
Peak Sequential Mixed IO Speed
475 MB/s Faster peak mixed IO speed.
+28%
371 MB/s
4K Mixed
Peak 4K Random Mixed IO Speed
24.8 MB/s 27.1 MB/s Slightly faster peak random mixed IO.
+9%
Market Share
Based on 6,418,470 SSDs tested.
User Rating
UBM User Rating
63 % 63.3 % +1%
Market Share
Market Share (trailing 30 days)
0.22 % 0.29 % Much higher market share.
+32%
Price
Price (score)
$160 117 USD Much cheaper.
+36%
Value
Value For Money
32.1 % 40.8 % Better value.
+27%
DQ Read
Peak 4K-64Thread Read Speed
361 MB/s Faster peak deep queue read.
+19%
304 MB/s
DQ Write
Peak 4K-64Thread Write Speed
310 MB/s Faster peak deep queue write.
+18%
262 MB/s
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
77.2 MB/s +1% 76.4 MB/s
ADQ Read
Avg. 4K-64Thread Read Speed
180 MB/s Faster deep queue read.
+16%
156 MB/s
ADQ Write
Avg. 4K-64Thread Write Speed
175 MB/s Slightly faster deep queue write.
+6%
165 MB/s
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
44.7 MB/s +1% 44.1 MB/s
Age
Newest
66 Months 53.2 Months More recent.
+24%
AS-SSD Total
AS-SSD Total Score
1,152 Pts Stronger server IO.
+15%
1,000 Pts
Capacity
Capacity
128GB   —
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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

Solid State Drive Rankings (Price vs Performance) April 2018 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 - Sometimes benchmarks get it completely wrong...
  • Fastest real world speed - Real World Speed measures performance for typical consumers.
  • Best value for money - Value for money is based on real world performance, price and capacity.
  • Raw speed comparison - Raw speed readings.
  • Details ordered by value - Detailed performance stats ordered by overall value for money.
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

 Best User Rated

The Best.
CPUGPUSSD
Intel Core i7-8700K $330Nvidia GTX 1070 $447Samsung 850 Evo 250GB $80
AMD Ryzen 5 1600 $170Nvidia GTX 1060-6GB $310Samsung 850 Evo 500GB $137
Intel Core i7-7700K $290AMD RX 480 $350Samsung 850 Pro 256GB $163
HDDRAMUSB
Seagate Barracuda 1TB (2016) $44Corsair Vengeance LPX DDR4 3000 C15 2x8GB $190SanDisk Extreme 64GB $70
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $957SanDisk Extreme 32GB $45
Seagate Barracuda 2TB (2016) $60Corsair Vengeance LPX DDR4 3200 C16 2x8GB $204SanDisk Ultra Fit 32GB $12
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