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ToshibaHDTS312(E|X)ZSTA
KingstonSV300S37A/480G
▲ 521,928 ▼

Controller: Toshiba TC358790XBG. NAND Memory: Toshiba 19mn MLC. Release date: Q4 2013.

VS
▲ 52994 ▼

Controller: LSI SandForce SF2281. Flash Memory: Toshiba 19nm Toggle Mode MLC. Release date: Q4 2012.

Effective Speed 
+58%
Real World Speed
Performance profile from 18,318 user samples
Benchmark your SSD here
2,808 User Benchmarks
Best Bench: 107% 89GB free
Worst Bench: 54% 19GB free
Poor: 54% Great: 107%
SPEED RANK: 450th / 1072
15,510 User Benchmarks
Best Bench: 65% 246GB free (System drive)
Worst Bench: 36% 444GB free
Poor: 36% Great: 65%
SPEED RANK: 879th / 1072
Effective Speed
Effective SSD Speed 		82.3 % Much faster effective speed.
+58% 		52.2 %
Average Score 
+75%
Read
Avg. Sequential Read Speed 		445 MB/s Much faster read speed.
+36% 		327 MB/s
Write
Avg. Sequential Write Speed 		343 MB/s Much faster write speed.
+42% 		242 MB/s
4K Read
Avg. 4K Random Read Speed 		21.6 MB/s 23.5 MB/s Slightly faster random read.
+9%
4K Write
Avg. 4K Random Write Speed 		72 MB/s Hugely faster random write.
+293% 		18.3 MB/s
Mixed
Avg. Sequential Mixed IO Speed 		364 MB/s Much faster mixed IO speed.
+41% 		258 MB/s
4K Mixed
Avg. 4K Random Mixed IO Speed 		36.6 MB/s Much faster random mixed IO.
+76% 		20.8 MB/s
SusWrite
Avg. Sustained Write Speed 		262 MB/s Much faster sustained write speed.
+42% 		184 MB/s
Peak Score 
+82%
Read
Peak Sequential Read Speed 		507 MB/s Faster peak read speed.
+10% 		460 MB/s
Write
Peak Sequential Write Speed 		463 MB/s Much faster peak write speed.
+42% 		325 MB/s
4K Read
Peak 4K Random Read Speed 		27.6 MB/s 30.7 MB/s Faster peak random read.
+11%
4K Write
Peak 4K Random Write Speed 		103 MB/s Hugely faster peak random write.
+344% 		23.2 MB/s
Mixed
Peak Sequential Mixed IO Speed 		445 MB/s Much faster peak mixed IO speed.
+32% 		336 MB/s
4K Mixed
Peak 4K Random Mixed IO Speed 		45.7 MB/s Much faster peak random mixed IO.
+72% 		26.6 MB/s
SusWrite
Peak Sequential Sustained Write 60s Average 		454 MB/s Hugely faster peak sustained write speed.
+82% 		250 MB/s
Value & Sentiment 
+∞%
Market Share
Based on 75,753,127 SSDs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0 % 0.01 % Insanely higher market share.
+∞%
Value
Value For Money 		8.76 % Much better value.
+58% 		5.53 %
User Rating
UBM User Rating 		52 % 52 %
Price
Price (score) 		$66 Much cheaper.
+73% 		$250
Nice To Haves 
+132%
Age
Newest 		126 Months Slightly more recent.
+8% 		137 Months
DQ Read
Peak 4K-64Thread Read Speed 		366 MB/s Much faster peak deep queue read.
+65% 		222 MB/s
DQ Write
Peak 4K-64Thread Write Speed 		326 MB/s Hugely faster peak deep queue write.
+258% 		91.1 MB/s
AS-SSD Total
AS-SSD Total Score 		1,153 Pts Hugely stronger server IO.
+91% 		603 Pts
DQ Mixed
Peak 4K-64Thread Mixed IO Speed 		348 MB/s Hugely faster peak deep queue mixed IO.
+211% 		112 MB/s
ADQ Read
Avg. 4K-64Thread Read Speed 		298 MB/s Much faster deep queue read.
+69% 		176 MB/s
ADQ Write
Avg. 4K-64Thread Write Speed 		225 MB/s Hugely faster deep queue write.
+186% 		78.8 MB/s
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed 		252 MB/s Hugely faster deep queue mixed IO.
+171% 		93 MB/s
Specifications 
Capacity
Capacity 		128GB 480GB
Conclusion 
Average Bench 82.3%
Average Bench 52.2%
ADVERTISEMENT

At four months old, the 128GB Toshiba Q Series Pro is the newest SSD in the group test. It's always nice to see new drives pushing established speed boundaries and the Q Series Pro does exactly that. With peak and average sequential read/write speeds of 521/481 and 422/333 MB/s the Q Series Pro beats the 128GB group average peak write speed by 45% and is bested only by the Samsung Evo. A particularly impressive aspect of the Q Series Pro's performance profile is its mixed IO performance where it beats the average of the group leaders by a stunning 50% and sets new sequential/4k mixed IO records of 502/40.4 MB/s. The ability to handle concurrent read and write operations well means that the Q Series Pro will rarely pause for breath, even when faced with varying IO demands, a great server orientated trait. Overall the Q Series Pro has a very robust performance profile and is well priced making it one of the top 128GB SSDs of 2014. [Feb '14 SSDrivePro]

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Solid State Drive Rankings (Price vs Performance) April 2024 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 - User sentiment trumps benchmarks for this comparison.
  • Best value for money - Value for money is based on real world performance.
  • Fastest real world speed - Real World Speed measures performance for typical consumers.
How Fast Is Your SSD? (Bench your build) Size up your PC in less than a minute

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.

UserBenchmark of the month

Gaming Desktop ProGaming

How it works

  • - Download and run UserBenchmark
  • - CPU tests include: integer, floating and string
  • - GPU tests include: six 3D game simulations
  • - Drive tests include: read, write, sustained write and mixed IO
  • - RAM tests include: single/multi core bandwidth and latency
  • - SkillBench (space shooter) tests user input accuracy
  • - 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 current market leaders
  • - Explore your best upgrade options with a virtual PC build
  • - Compare your in-game FPS to other users with your hardware

 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?
What’s the difference between NAND and V-NAND?
What is sequential write speed?
What is sequential read speed?
What is incompressible data?
What is queue depth?
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?
What is the effective SSD speed index?
How is the AS SSD write score calculated?
How is the AS SSD read score calculated?
How is the AS SSD total score calculated?
ALL FAQs »

 Best User Rated
The Best.
CPUGPUSSD
Intel Core i5-13600K $269Nvidia RTX 4060 $295Crucial MX500 250GB $40
Intel Core i5-12400F $133Nvidia RTX 4060-Ti $385Samsung 850 Evo 120GB $80
Intel Core i5-12600K $177Nvidia RTX 4070 $539Samsung 860 Evo 250GB $52
HDDRAMUSB
Seagate Barracuda 1TB (2016) $39Corsair Vengeance LPX DDR4 3200 C16 2x8GB $40SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $37Corsair Vengeance LPX DDR4 3000 C15 2x8GB $43SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $51G.SKILL Trident Z DDR4 3200 C14 4x16GB $351SanDisk Ultra Fit 32GB $16
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