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SamsungMZ-77E4T0B
▲ 500 ▼
  

Release date ≈ Q4 2016.

VS
▲ 5121 ▼

Controller: Samsung MKX. Memory: Samsung 128 layer TLC V-NAND. Release date ≈ Q1 2021.

Effective Speed 
+91%
Real World Speed
Performance profile from 9,458 user samples
Benchmark your SSD here
4 User Benchmarks
Best Bench: 69% 121GB free
Worst Bench: 57% 122GB free
Poor: 57% Great: 69%
SPEED RANK: 799th / 1080
9,454 User Benchmarks
Best Bench: 137% 3.5TB free
Worst Bench: 90% 1.5TB free
Poor: 90% Great: 137%
SPEED RANK: 203rd / 1080
Effective Speed
Effective SSD Speed 		61.1 % 117 % Hugely faster effective speed.
+91%
Average Score 
+144%
Read
Avg. Sequential Read Speed 		594 MB/s Faster read speed.
+23% 		481 MB/s
Write
Avg. Sequential Write Speed 		178 MB/s 451 MB/s Hugely faster write speed.
+153%
4K Read
Avg. 4K Random Read Speed 		11.3 MB/s 40.5 MB/s Hugely faster random read.
+258%
4K Write
Avg. 4K Random Write Speed 		32.5 MB/s 90 MB/s Hugely faster random write.
+177%
Mixed
Avg. Sequential Mixed IO Speed 		237 MB/s 426 MB/s Much faster mixed IO speed.
+80%
4K Mixed
Avg. 4K Random Mixed IO Speed 		16.7 MB/s 53.6 MB/s Hugely faster random mixed IO.
+221%
Peak Score 
+147%
Read
Peak Sequential Read Speed 		635 MB/s Faster peak read speed.
+23% 		517 MB/s
Write
Peak Sequential Write Speed 		181 MB/s 491 MB/s Hugely faster peak write speed.
+171%
4K Read
Peak 4K Random Read Speed 		13.1 MB/s 48.8 MB/s Hugely faster peak random read.
+273%
4K Write
Peak 4K Random Write Speed 		48.6 MB/s 131 MB/s Hugely faster peak random write.
+170%
Mixed
Peak Sequential Mixed IO Speed 		245 MB/s 464 MB/s Hugely faster peak mixed IO speed.
+89%
4K Mixed
Peak 4K Random Mixed IO Speed 		22.4 MB/s 68.1 MB/s Hugely faster peak random mixed IO.
+204%
Value & Sentiment 
+2%
Market Share
Based on 77,541,312 SSDs tested
See market share leaders
User Rating
UBM User Rating 		50 % 51 % +2%
Nice To Haves 
+125%
Age
Newest 		96+ Months 45+ Months Much more recent.
+53%
DQ Read
Peak 4K-64Thread Read Speed 		298 MB/s 389 MB/s Much faster peak deep queue read.
+31%
DQ Write
Peak 4K-64Thread Write Speed 		142 MB/s 364 MB/s Hugely faster peak deep queue write.
+156%
AS-SSD Total
AS-SSD Total Score 		754 Pts 1,301 Pts Much stronger server IO.
+73%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed 		105 MB/s 374 MB/s Hugely faster peak deep queue mixed IO.
+256%
ADQ Read
Avg. 4K-64Thread Read Speed 		277 MB/s 354 MB/s Faster deep queue read.
+28%
ADQ Write
Avg. 4K-64Thread Write Speed 		133 MB/s 305 MB/s Hugely faster deep queue write.
+129%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed 		86.3 MB/s 324 MB/s Hugely faster deep queue mixed IO.
+275%
Specifications 
Capacity
Capacity 		160GB 4TB
Conclusion 
Average Bench 61.1%
Average Bench 117%

There are high failure rates for the 4TB version of this drive. After moderate use the drive can develop bad sectors which block file reads. Scandisk does not detect the errors and the data blocks are not recoverable. There are widespread reports of this problem but Samsung have yet to issue a statement. [Jul '23 SSDrivePro]

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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]

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 Frequently Asked Questions

Storage Devices FAQ
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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
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What is 4K 64 thread write speed?
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The Best
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Intel Core i5-12600K $159Nvidia RTX 4060 $280WD Black SN850X M.2 2TB $135
Intel Core i5-13600K $210Nvidia RTX 4060-Ti $389WD Black SN850X M.2 1TB $75
Intel Core i5-12400F $111Nvidia RTX 4070 $500Crucial T700 M.2 4TB $370
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