Controller: Samsung Triple Core MEX. Memory: Samsung 40nm MLC V-NAND

Controller: Silicon Motion SM2246EN. NAND: Micron 16nm MLC.

Real World Speed
Performance profile from 3,479 user samples
2,631 User Benchmarks
Best Bench: 123% 950GB free
Worst Bench: 66% 460GB free
Poor: 66% Great: 123%
SPEED RANK: 47th / 848
848 User Benchmarks
Best Bench: 103% 528GB free
Worst Bench: 65% 615GB free
Poor: 65% Great: 103%
SPEED RANK: 105th / 848
Effective Speed
Effective SSD Speed
99.6 % Slightly faster effective speed.
86.6 % -15%
Avg. Sequential Read Speed
504 MB/s +3% 490 MB/s -3%
Avg. Sequential Write Speed
448 MB/s Slightly faster write speed.
402 MB/s -11%
4K Read
Avg. 4K Random Read Speed
31.7 MB/s Much faster random read.
22.7 MB/s -40%
4K Write
Avg. 4K Random Write Speed
85.2 MB/s +3% 82.6 MB/s -3%
Avg. Sequential Mixed IO Speed
471 MB/s Slightly faster mixed IO speed.
438 MB/s -8%
4K Mixed
Avg. 4K Random Mixed IO Speed
34.8 MB/s Much faster random mixed IO.
26.6 MB/s -31%
Peak Sequential Read Speed
528 MB/s +2% 518 MB/s -2%
Peak Sequential Write Speed
502 MB/s Faster peak write speed.
431 MB/s -16%
4K Read
Peak 4K Random Read Speed
39.5 MB/s Much faster peak random read.
29.4 MB/s -34%
4K Write
Peak 4K Random Write Speed
124 MB/s Slightly faster peak random write.
118 MB/s -5%
Peak Sequential Mixed IO Speed
517 MB/s Slightly faster peak mixed IO speed.
463 MB/s -12%
4K Mixed
Peak 4K Random Mixed IO Speed
51 MB/s Much faster peak random mixed IO.
37.6 MB/s -36%
Market Share
Based on 2,359,232 SSDs tested.
Market Share
Market Share (trailing 30 days)
0.3 % Hugely higher market share.
0.1 % -200%
Value For Money
87 % -37% 119 % Much better value.
User Rating
UBM User Rating
70 % More popular.
55 % -27%
Price (score)
$465 -47% $248 Much cheaper.
32 Months -22% 25 Months More recent.
DQ Read
Peak 4K-64Thread Read Speed
382 MB/s Much faster peak deep queue read.
275 MB/s -39%
DQ Write
Peak 4K-64Thread Write Speed
343 MB/s Faster peak deep queue write.
293 MB/s -17%
AS-SSD Total
AS-SSD Total Score
1,247 Pts Stronger server IO.
999 Pts -25%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
177 MB/s Hugely faster peak deep queue mixed IO.
73.3 MB/s -141%
ADQ Read
Avg. 4K-64Thread Read Speed
221 MB/s Faster deep queue read.
172 MB/s -28%
ADQ Write
Avg. 4K-64Thread Write Speed
233 MB/s Slightly faster deep queue write.
211 MB/s -10%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
105 MB/s Hugely faster deep queue mixed IO.
50.5 MB/s -108%

The Mushkin Reactor features the same Silicon Motion SM2246EN controller found on both the Crucial BX100 and the Transcend SSD370. All three drives also feature Micron MLC NAND and consequently they all share a similar (and strong) performance profile. These drives were the last batch (early 2015) of budget drives to utilize MLC rather than TLC NAND and as a result they all have reasonably strong sustained write speeds. The more recent trend for budget drives is to utilize a small SLC write cache coupled with TLC NAND, a combination which results in severe write speed degradation upon cache exhaustion. The Mushkin Reactor doesn’t have this problem and both the 500GB and 1TB Reactors only lag the market leading 850 Evo slightly on performance. At today’s prices the 1TB Reactor offers better value for money than the market leading Samsung 850 Evo (compare them). See the current market leaders here[May '16 SSDrivePro]


Solid State Drive Rankings (Price vs Performance) March 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
  • - 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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The Best.
Intel Core i7-7700K $310AMD RX 480 $195Samsung 850 Evo 250GB $94
AMD Ryzen 7 1700 $320Nvidia GTX 1070 $370Samsung 850 Pro 256GB $138
Intel Core i5-7600K $215Nvidia GTX 1060-6GB $235Samsung 850 Evo 500GB $160
Seagate Barracuda 1TB (2016) $50Corsair Vengeance LPX DDR4 3000 C15 2x8GB $110SanDisk Extreme 64GB $34
Seagate Barracuda 3TB (2016) $90G.SKILL Trident Z DDR4 3200 C14 4x16GB $430SanDisk Extreme 32GB $22
Seagate Barracuda 7200.14 1TB $50Corsair Vengeance LPX DDR4 3200 C16 2x8GB $130SanDisk Ultra Fit 32GB $9
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