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SamsungMZ-77E4T0B

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

  

Release date ≈ Q3 2019.

Real World Speed
Performance profile from 9,519 user samples
9,454 User Benchmarks
Best Bench: 137% 3.5TB free
Worst Bench: 90% 1.5TB free
Poor: 90% Great: 137%
SPEED RANK: 203rd / 1080
65 User Benchmarks
Best Bench: 116% 465GB free
Worst Bench: 69% 433GB free (System drive)
Poor: 69% Great: 116%
SPEED RANK: 271st / 1080
Effective Speed
Effective SSD Speed
117 % Faster effective speed.
+19%
97.9 %
Read
Avg. Sequential Read Speed
481 MB/s Faster read speed.
+22%
393 MB/s
Write
Avg. Sequential Write Speed
451 MB/s Faster write speed.
+14%
397 MB/s
4K Read
Avg. 4K Random Read Speed
40.5 MB/s Much faster random read.
+32%
30.6 MB/s
4K Write
Avg. 4K Random Write Speed
90 MB/s Faster random write.
+15%
78.2 MB/s
Mixed
Avg. Sequential Mixed IO Speed
426 MB/s Faster mixed IO speed.
+23%
346 MB/s
4K Mixed
Avg. 4K Random Mixed IO Speed
53.6 MB/s Faster random mixed IO.
+29%
41.5 MB/s
SusWrite
Avg. Sustained Write Speed
445 MB/s Faster sustained write speed.
+12%
398 MB/s
Read
Peak Sequential Read Speed
517 MB/s Faster peak read speed.
+12%
460 MB/s
Write
Peak Sequential Write Speed
491 MB/s +3% 475 MB/s
4K Read
Peak 4K Random Read Speed
48.8 MB/s Faster peak random read.
+25%
38.9 MB/s
4K Write
Peak 4K Random Write Speed
131 MB/s Faster peak random write.
+18%
111 MB/s
Mixed
Peak Sequential Mixed IO Speed
464 MB/s Faster peak mixed IO speed.
+17%
397 MB/s
4K Mixed
Peak 4K Random Mixed IO Speed
68.1 MB/s Faster peak random mixed IO.
+26%
54.1 MB/s
SusWrite
Peak Sequential Sustained Write 60s Average
489 MB/s Slightly faster peak sustained write speed.
+10%
445 MB/s
Market Share
Based on 77,426,625 SSDs tested
Market Share
Market Share (trailing 30 days)
0.03 % Insanely higher market share.
+∞%
0 %
User Rating
UBM User Rating
51 % +2% 50 %
Age
Newest
44+ Months Much more recent.
+31%
64+ Months
DQ Read
Peak 4K-64Thread Read Speed
389 MB/s +3% 376 MB/s
DQ Write
Peak 4K-64Thread Write Speed
364 MB/s +3% 354 MB/s
AS-SSD Total
AS-SSD Total Score
1,301 Pts Slightly stronger server IO.
+6%
1,224 Pts
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
374 MB/s +3% 363 MB/s
ADQ Read
Avg. 4K-64Thread Read Speed
354 MB/s Slightly faster deep queue read.
+6%
333 MB/s
ADQ Write
Avg. 4K-64Thread Write Speed
305 MB/s +2% 300 MB/s
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
324 MB/s +5% 310 MB/s
Capacity
Capacity
4TB 512GB

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]

MORE DETAILS

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.
  • 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.
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The Best
CPUGPUSSD
Intel Core i5-12600K $169Nvidia RTX 4060 $295WD Black SN850X M.2 2TB $135
Intel Core i5-12400F $111Nvidia RTX 4060-Ti $345WD Black SN850X M.2 1TB $80
Intel Core i5-13600K $225Nvidia RTX 4070 $500Crucial T700 M.2 4TB $350
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