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SamsungMZ-77E4T0B
▲ 5121 ▼

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

VS
▲ 500 ▼
  

Release date ≈ Q4 2020.

Effective Speed 
+65%
Real World Speed
Performance profile from 9,701 user samples
Benchmark your SSD here
9,454 User Benchmarks
Best Bench: 137% 3.5TB free
Worst Bench: 90% 1.5TB free
Poor: 90% Great: 137%
SPEED RANK: 203rd / 1080
247 User Benchmarks
Best Bench: 242% 897GB free (System drive)
Worst Bench: 138% 259GB free (System drive)
Poor: 138% Great: 242%
SPEED RANK: 113th / 1080
Effective Speed
Effective SSD Speed 		117 % 192 % Much faster effective speed.
+65%
Average Score 
+65%
Read
Avg. Sequential Read Speed 		481 MB/s 1,509 MB/s Hugely faster read speed.
+214%
Write
Avg. Sequential Write Speed 		451 MB/s 1,223 MB/s Hugely faster write speed.
+171%
4K Read
Avg. 4K Random Read Speed 		40.5 MB/s +2% 39.6 MB/s
4K Write
Avg. 4K Random Write Speed 		90 MB/s 116 MB/s Faster random write.
+29%
Mixed
Avg. Sequential Mixed IO Speed 		426 MB/s 808 MB/s Hugely faster mixed IO speed.
+90%
4K Mixed
Avg. 4K Random Mixed IO Speed 		53.6 MB/s Hugely faster random mixed IO.
+147% 		21.7 MB/s
SusWrite
Avg. Sustained Write Speed 		445 MB/s 888 MB/s Hugely faster sustained write speed.
+100%
Peak Score 
+93%
Read
Peak Sequential Read Speed 		517 MB/s 1,660 MB/s Hugely faster peak read speed.
+221%
Write
Peak Sequential Write Speed 		491 MB/s 1,608 MB/s Hugely faster peak write speed.
+227%
4K Read
Peak 4K Random Read Speed 		48.8 MB/s Slightly faster peak random read.
+6% 		46.2 MB/s
4K Write
Peak 4K Random Write Speed 		131 MB/s 150 MB/s Faster peak random write.
+15%
Mixed
Peak Sequential Mixed IO Speed 		464 MB/s 1,062 MB/s Hugely faster peak mixed IO speed.
+129%
4K Mixed
Peak 4K Random Mixed IO Speed 		68.1 MB/s Hugely faster peak random mixed IO.
+150% 		27.2 MB/s
SusWrite
Peak Sequential Sustained Write 60s Average 		489 MB/s 1,537 MB/s Hugely faster peak sustained write speed.
+214%
Value & Sentiment 
+∞%
Market Share
Based on 77,513,090 SSDs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.03 % Insanely higher market share.
+∞% 		0 %
User Rating
UBM User Rating 		51 % +2% 50 %
Nice To Haves 
+98%
Age
Newest 		45+ Months Slightly more recent.
+8% 		49+ Months
DQ Read
Peak 4K-64Thread Read Speed 		389 MB/s 895 MB/s Hugely faster peak deep queue read.
+130%
DQ Write
Peak 4K-64Thread Write Speed 		364 MB/s 972 MB/s Hugely faster peak deep queue write.
+167%
AS-SSD Total
AS-SSD Total Score 		1,301 Pts 2,964 Pts Hugely stronger server IO.
+128%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed 		374 MB/s 549 MB/s Much faster peak deep queue mixed IO.
+47%
ADQ Read
Avg. 4K-64Thread Read Speed 		354 MB/s 854 MB/s Hugely faster deep queue read.
+141%
ADQ Write
Avg. 4K-64Thread Write Speed 		305 MB/s 701 MB/s Hugely faster deep queue write.
+130%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed 		324 MB/s 483 MB/s Much faster deep queue mixed IO.
+49%
Specifications 
Capacity
Capacity 		4TB 1TB
Conclusion 
Average Bench 117%
Average Bench 192%

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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User Builds 
9,454
247
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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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Solid State Drives
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The Best
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Intel Core i5-12600K $159Nvidia RTX 4060 $295WD Black SN850X M.2 2TB $135
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Intel Core i5-12400F $111Nvidia RTX 4070 $500Crucial T700 M.2 4TB $370
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