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KingstonSH100S3/240G
SamsungMZ-7PD256BW
▲ 532,018 ▼

Controller: LSI SandForce SF2281VB1-SDC. NAND Memory: Intel Synchronous 25nm MLC. Release date: Q3 2011.

VS
▲ 5420,557 ▼

Controller: Samsung 3-core MDX. Flash Memory: Samsung 21nm Toggle Mode MLC. Release date: Q4 2012.

Effective Speed 
+22%
Real World Speed
Performance profile from 73,621 user samples
Benchmark your SSD here
502 User Benchmarks
Best Bench: 92% 213GB free
Worst Bench: 60% 24GB free (System drive)
Poor: 60% Great: 92%
SPEED RANK: 534th / 1080
73,119 User Benchmarks
Best Bench: 116% 238GB free
Worst Bench: 68% 11GB free (System drive)
Poor: 68% Great: 116%
SPEED RANK: 287th / 1080
Effective Speed
Effective SSD Speed 		77.7 % 95 % Faster effective speed.
+22%
Average Score 
+24%
Read
Avg. Sequential Read Speed 		371 MB/s 459 MB/s Faster read speed.
+24%
Write
Avg. Sequential Write Speed 		253 MB/s 367 MB/s Much faster write speed.
+45%
4K Read
Avg. 4K Random Read Speed 		29.2 MB/s 31 MB/s Slightly faster random read.
+6%
4K Write
Avg. 4K Random Write Speed 		78.4 MB/s 85.6 MB/s Slightly faster random write.
+9%
Mixed
Avg. Sequential Mixed IO Speed 		267 MB/s 303 MB/s Faster mixed IO speed.
+13%
4K Mixed
Avg. 4K Random Mixed IO Speed 		35.5 MB/s 39.5 MB/s Faster random mixed IO.
+11%
SusWrite
Avg. Sustained Write Speed 		193 MB/s 312 MB/s Much faster sustained write speed.
+62%
Peak Score 
+33%
Read
Peak Sequential Read Speed 		428 MB/s 510 MB/s Faster peak read speed.
+19%
Write
Peak Sequential Write Speed 		288 MB/s 480 MB/s Much faster peak write speed.
+67%
4K Read
Peak 4K Random Read Speed 		35.5 MB/s 36.1 MB/s +2%
4K Write
Peak 4K Random Write Speed 		115 MB/s +1% 114 MB/s
Mixed
Peak Sequential Mixed IO Speed 		295 MB/s 368 MB/s Faster peak mixed IO speed.
+25%
4K Mixed
Peak 4K Random Mixed IO Speed 		44.2 MB/s 47.6 MB/s Slightly faster peak random mixed IO.
+8%
SusWrite
Peak Sequential Sustained Write 60s Average 		224 MB/s 477 MB/s Hugely faster peak sustained write speed.
+113%
Value & Sentiment 
+∞%
Market Share
Based on 77,531,310 SSDs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0 % 0.11 % Insanely higher market share.
+∞%
Value
Value For Money 		13.5 % Much better value.
+64% 		8.21 %
User Rating
UBM User Rating 		53 % 54 % +2%
Price
Price (score) 		$65 Much cheaper.
+63% 		$175
Nice To Haves 
+7%
Age
Newest 		160 Months 145 Months Slightly more recent.
+9%
DQ Read
Peak 4K-64Thread Read Speed 		306 MB/s 385 MB/s Faster peak deep queue read.
+26%
DQ Write
Peak 4K-64Thread Write Speed 		260 MB/s 334 MB/s Faster peak deep queue write.
+28%
AS-SSD Total
AS-SSD Total Score 		991 Pts 1,221 Pts Stronger server IO.
+23%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed 		249 MB/s Much faster peak deep queue mixed IO.
+41% 		176 MB/s
ADQ Read
Avg. 4K-64Thread Read Speed 		270 MB/s 346 MB/s Faster deep queue read.
+28%
ADQ Write
Avg. 4K-64Thread Write Speed 		216 MB/s 262 MB/s Faster deep queue write.
+21%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed 		203 MB/s Much faster deep queue mixed IO.
+38% 		147 MB/s
Specifications 
Capacity
Capacity 		240GB 256GB
Conclusion 
Average Bench 77.7%
Average Bench 95%

The Kingston HyperX is nearly two years old which in SSD terms is almost an entire lifetime. Starting on a positive note this drive will outperform any mechanical drive hands down, and still has one of the highest sequential read speeds (517 MB/s) we have ever seen on a SATA SSD. That said a balanced performance profile is critical and the HyperX doesn't fare so well against its younger SSD competitors in the other write orientated benchmark categories. The poor results are explained by the Kingston's Sandforce controller which struggles to deliver incompressible data throughput. With a real world speed of 398.1 MB/s and an AS-SSD score of 728 (bottom 28th percentile) there are far better deals to be had at this time. [Apr '13 SSDrivePro]

MORE DETAILS

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

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Solid State Drive Rankings (Price vs Performance) November 2024 SSD Rankings

Welcome to our 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]

Group Test Results

  • Best user rated - User sentiment trumps benchmarks for this comparison.
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Welcome to our 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 value for money upgrades.

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 Frequently Asked Questions

Storage Devices FAQ
What is sustained sequential write speed?
What’s the difference between SLC, MLC and TLC?
What is 3D XPoint and how fast is it?
What’s the difference between SATA, PCIe and NVMe?
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Solid State Drives
What is the SSD value for money rating?
What is 4K 64 thread write speed?
Can CPU power saving states (C1,C2,C3) impact SSD speed?
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