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SamsungMZ-77E4T0B
Netac
▲ 5121 ▼

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

VS
▲ 500 ▼
  

Release date ≈ Q2 2018.

Effective Speed 
+25%
Real World Speed
Performance profile from 9,513 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
59 User Benchmarks
Best Bench: 112% 323GB free
Worst Bench: 70% 243GB free (System drive)
Poor: 70% Great: 112%
SPEED RANK: 299th / 1080
Effective Speed
Effective SSD Speed 		117 % Faster effective speed.
+25% 		93.6 %
Average Score 
+25%
Read
Avg. Sequential Read Speed 		481 MB/s Faster read speed.
+10% 		437 MB/s
Write
Avg. Sequential Write Speed 		451 MB/s Faster write speed.
+17% 		384 MB/s
4K Read
Avg. 4K Random Read Speed 		40.5 MB/s Faster random read.
+29% 		31.4 MB/s
4K Write
Avg. 4K Random Write Speed 		90 MB/s Slightly faster random write.
+5% 		85.5 MB/s
Mixed
Avg. Sequential Mixed IO Speed 		426 MB/s Faster mixed IO speed.
+24% 		344 MB/s
4K Mixed
Avg. 4K Random Mixed IO Speed 		53.6 MB/s Faster random mixed IO.
+25% 		42.8 MB/s
SusWrite
Avg. Sustained Write Speed 		445 MB/s Much faster sustained write speed.
+61% 		276 MB/s
Peak Score 
+20%
Read
Peak Sequential Read Speed 		517 MB/s Slightly faster peak read speed.
+9% 		474 MB/s
Write
Peak Sequential Write Speed 		491 MB/s Faster peak write speed.
+17% 		419 MB/s
4K Read
Peak 4K Random Read Speed 		48.8 MB/s Faster peak random read.
+27% 		38.4 MB/s
4K Write
Peak 4K Random Write Speed 		131 MB/s Slightly faster peak random write.
+6% 		124 MB/s
Mixed
Peak Sequential Mixed IO Speed 		464 MB/s Faster peak mixed IO speed.
+23% 		376 MB/s
4K Mixed
Peak 4K Random Mixed IO Speed 		68.1 MB/s Faster peak random mixed IO.
+15% 		59.2 MB/s
SusWrite
Peak Sequential Sustained Write 60s Average 		489 MB/s Much faster peak sustained write speed.
+44% 		339 MB/s
Value & Sentiment 
+∞%
Market Share
Based on 77,538,926 SSDs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.05 % Insanely higher market share.
+∞% 		0 %
User Rating
UBM User Rating 		51 % +2% 50 %
Nice To Haves 
+62%
Age
Newest 		45+ Months Much more recent.
+42% 		78+ Months
DQ Read
Peak 4K-64Thread Read Speed 		389 MB/s Slightly faster peak deep queue read.
+7% 		364 MB/s
DQ Write
Peak 4K-64Thread Write Speed 		364 MB/s +0% 363 MB/s
AS-SSD Total
AS-SSD Total Score 		1,301 Pts Slightly stronger server IO.
+7% 		1,220 Pts
DQ Mixed
Peak 4K-64Thread Mixed IO Speed 		374 MB/s Hugely faster peak deep queue mixed IO.
+207% 		122 MB/s
ADQ Read
Avg. 4K-64Thread Read Speed 		354 MB/s Faster deep queue read.
+19% 		297 MB/s
ADQ Write
Avg. 4K-64Thread Write Speed 		305 MB/s Slightly faster deep queue write.
+9% 		281 MB/s
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed 		324 MB/s Hugely faster deep queue mixed IO.
+206% 		106 MB/s
Specifications 
Capacity
Capacity 		4TB 429GB
Conclusion 
Average Bench 117%
Average Bench 93.6%

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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59
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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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Storage Devices FAQ
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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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