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OCZAGT4-25SAT3-256G
SamsungMZ-75E4T0B
▲ 51500 ▼

Controller: Indilinx Everest 2 IDX400M00. Flash Memory: Micron Asynchronous 25nm MLC. Release date: Q2 2012.

VS
▲ 5020 ▼

Controller: Samsung Dual Core MGX. Memory: Samsung 40nm TLC V-NAND. Release date ≈ Q3 2016.

Effective Speed 
+56%
Real World Speed
Performance profile from 2,181 user samples
Benchmark your SSD here
1,416 User Benchmarks
Best Bench: 87% 238GB free
Worst Bench: 57% 185GB free (System drive)
Poor: 57% Great: 87%
SPEED RANK: 625th / 1072
765 User Benchmarks
Best Bench: 133% 2.5TB free
Worst Bench: 85% 965GB free
Poor: 85% Great: 133%
SPEED RANK: 203rd / 1072
Effective Speed
Effective SSD Speed 		72.3 % 113 % Much faster effective speed.
+56%
Average Score 
+68%
Read
Avg. Sequential Read Speed 		276 MB/s 475 MB/s Much faster read speed.
+72%
Write
Avg. Sequential Write Speed 		304 MB/s 436 MB/s Much faster write speed.
+43%
4K Read
Avg. 4K Random Read Speed 		18.4 MB/s 39 MB/s Hugely faster random read.
+112%
4K Write
Avg. 4K Random Write Speed 		94.5 MB/s Slightly faster random write.
+8% 		87.8 MB/s
Mixed
Avg. Sequential Mixed IO Speed 		193 MB/s 402 MB/s Hugely faster mixed IO speed.
+108%
4K Mixed
Avg. 4K Random Mixed IO Speed 		27 MB/s 51.7 MB/s Hugely faster random mixed IO.
+91%
SusWrite
Avg. Sustained Write Speed 		275 MB/s 432 MB/s Much faster sustained write speed.
+57%
Peak Score 
+58%
Read
Peak Sequential Read Speed 		336 MB/s 510 MB/s Much faster peak read speed.
+52%
Write
Peak Sequential Write Speed 		391 MB/s 489 MB/s Faster peak write speed.
+25%
4K Read
Peak 4K Random Read Speed 		21.3 MB/s 46.5 MB/s Hugely faster peak random read.
+118%
4K Write
Peak 4K Random Write Speed 		131 MB/s +4% 126 MB/s
Mixed
Peak Sequential Mixed IO Speed 		236 MB/s 441 MB/s Hugely faster peak mixed IO speed.
+87%
4K Mixed
Peak 4K Random Mixed IO Speed 		31.8 MB/s 64.6 MB/s Hugely faster peak random mixed IO.
+103%
SusWrite
Peak Sequential Sustained Write 60s Average 		382 MB/s 488 MB/s Faster peak sustained write speed.
+28%
Value & Sentiment 
�%
Market Share
Based on 75,744,895 SSDs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0 % 0 %
Value
Value For Money 		10.3 % 36.5 % Hugely better value.
+254%
User Rating
UBM User Rating 		51 % +2% 50 %
Price
Price (score) 		$90 Hugely cheaper.
+81% 		$470
Nice To Haves 
+40%
Age
Newest 		143 Months 91+ Months Much more recent.
+36%
DQ Read
Peak 4K-64Thread Read Speed 		255 MB/s 386 MB/s Much faster peak deep queue read.
+51%
DQ Write
Peak 4K-64Thread Write Speed 		316 MB/s 352 MB/s Faster peak deep queue write.
+11%
AS-SSD Total
AS-SSD Total Score 		964 Pts 1,274 Pts Much stronger server IO.
+32%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed 		208 MB/s 364 MB/s Much faster peak deep queue mixed IO.
+75%
ADQ Read
Avg. 4K-64Thread Read Speed 		231 MB/s 332 MB/s Much faster deep queue read.
+44%
ADQ Write
Avg. 4K-64Thread Write Speed 		235 MB/s 281 MB/s Faster deep queue write.
+20%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed 		194 MB/s 296 MB/s Much faster deep queue mixed IO.
+53%
Specifications 
Capacity
Capacity 		256GB 4TB
Conclusion 
Average Bench 72.3%
Average Bench 113%
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The OCZ Agility 4 is a relatively old SSD and has been included in the group test as a reference. In terms of overall speed the Agility 4 lags the current ten market leaders by an average of around 30%, considering that the Agility 4 is only 16 months old this highlights just how quickly the SSD market has evolved over the last two years. It's probably not worth upgrading for the sake of more speed unless you have a specific use case that demands it but if you are looking for a speed upgrade, you will gain up to around 50% by going for the Samsung 840 Pro or the OCZ Vector. [Sep '13 SSDrivePro]

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i sell child to buy good ssd [Apr '19 userbanchmark]

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User Builds 
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Custom PC Builder (Start a new build) Build your perfect PC: compare component prices, popularity, speed and value for money

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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.

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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 $45SanDisk 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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