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SamsungMZ-77E4T0B
SamsungMZ-76E500B
▲ 5121 ▼

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

VS
▲ 581,121 ▼

Controller: Samsung MJX. Memory: Samsung 64 layer TLC V-NAND. Release date ≈ Q1 2018.

Effective Speed 
+11%
Real World Speed
Performance profile from 772,452 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
762,998 User Benchmarks
Best Bench: 129% 444GB free
Worst Bench: 74% 104GB free (System drive)
Poor: 74% Great: 129%
SPEED RANK: 239th / 1080
Effective Speed
Effective SSD Speed 		117 % Faster effective speed.
+11% 		105 %
Average Score 
+11%
Read
Avg. Sequential Read Speed 		481 MB/s +0% 480 MB/s
Write
Avg. Sequential Write Speed 		451 MB/s Faster write speed.
+12% 		401 MB/s
4K Read
Avg. 4K Random Read Speed 		40.5 MB/s Faster random read.
+12% 		36.1 MB/s
4K Write
Avg. 4K Random Write Speed 		90 MB/s 94.9 MB/s Slightly faster random write.
+5%
Mixed
Avg. Sequential Mixed IO Speed 		426 MB/s Faster mixed IO speed.
+14% 		375 MB/s
4K Mixed
Avg. 4K Random Mixed IO Speed 		53.6 MB/s Faster random mixed IO.
+12% 		47.9 MB/s
SusWrite
Avg. Sustained Write Speed 		445 MB/s Much faster sustained write speed.
+33% 		334 MB/s
Peak Score 
+3%
Read
Peak Sequential Read Speed 		517 MB/s +0% 516 MB/s
Write
Peak Sequential Write Speed 		491 MB/s 493 MB/s +0%
4K Read
Peak 4K Random Read Speed 		48.8 MB/s +4% 46.8 MB/s
4K Write
Peak 4K Random Write Speed 		131 MB/s +4% 126 MB/s
Mixed
Peak Sequential Mixed IO Speed 		464 MB/s 467 MB/s +1%
4K Mixed
Peak 4K Random Mixed IO Speed 		68.1 MB/s Slightly faster peak random mixed IO.
+7% 		63.7 MB/s
SusWrite
Peak Sequential Sustained Write 60s Average 		489 MB/s Slightly faster peak sustained write speed.
+10% 		446 MB/s
Value & Sentiment 
+328%
Market Share
Based on 77,571,363 SSDs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.07 % 1 % Insanely higher market share.
+1,329%
Value
Value For Money 		54.7 % Hugely better value.
+102% 		27.1 %
User Rating
UBM User Rating 		51 % 58 % More popular.
+14%
Price
Price (score) 		$287 $80 Much cheaper.
+72%
Nice To Haves 
+8%
Age
Newest 		45+ Months Much more recent.
+44% 		81+ Months
DQ Read
Peak 4K-64Thread Read Speed 		389 MB/s 389 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 +1% 1,292 Pts
DQ Mixed
Peak 4K-64Thread Mixed IO Speed 		374 MB/s +1% 371 MB/s
ADQ Read
Avg. 4K-64Thread Read Speed 		354 MB/s +2% 346 MB/s
ADQ Write
Avg. 4K-64Thread Write Speed 		305 MB/s +5% 291 MB/s
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed 		324 MB/s Faster deep queue mixed IO.
+14% 		284 MB/s
Specifications 
Capacity
Capacity 		4TB 500GB
Conclusion 
Average Bench 117%
Average Bench 105%

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

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762,998
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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.
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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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 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 »

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Brands make boatloads on flagships like the 4090 and 14900KS. We help users get similar real-world performance for less money.
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The Best
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Intel Core i5-12600K $167Nvidia RTX 4060 $290WD Black SN850X M.2 2TB $129
Intel Core i5-13600K $210Nvidia RTX 4060-Ti $389WD Black SN850X M.2 1TB $80
Intel Core i5-12400F $111Nvidia RTX 4070 $500Crucial T700 M.2 4TB $406
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