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SamsungMZ-77E2T0B
640gb
▲ 5123 ▼

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

VS
▲ 500 ▼
  

Release date ≈ Q4 2019.

Effective Speed 
+5%
Real World Speed
Performance profile from 31,078 user samples
Benchmark your SSD here
31,076 User Benchmarks
Best Bench: 136% 1TB free
Worst Bench: 81% 207GB free
Poor: 81% Great: 136%
SPEED RANK: 209th / 1080
2 User Benchmarks
Great bench: 122% 121GB free
Poor bench: 116% 486GB free
Poor: 116% Great: 122%
SPEED RANK: 200th / 1080
Effective Speed
Effective SSD Speed 		113 % 119 % Slightly faster effective speed.
+5%
Average Score 
+5%
Read
Avg. Sequential Read Speed 		472 MB/s 484 MB/s +3%
Write
Avg. Sequential Write Speed 		442 MB/s 483 MB/s Slightly faster write speed.
+9%
4K Read
Avg. 4K Random Read Speed 		38.6 MB/s 45.2 MB/s Faster random read.
+17%
4K Write
Avg. 4K Random Write Speed 		87.7 MB/s Slightly faster random write.
+7% 		82.3 MB/s
Mixed
Avg. Sequential Mixed IO Speed 		411 MB/s 431 MB/s +5%
4K Mixed
Avg. 4K Random Mixed IO Speed 		51.2 MB/s +2% 50.3 MB/s
SusWrite
Avg. Sustained Write Speed 		433 MB/s 483 MB/s Faster sustained write speed.
+12%
Peak Score 
+4%
Read
Peak Sequential Read Speed 		515 MB/s 565 MB/s Slightly faster peak read speed.
+10%
Write
Peak Sequential Write Speed 		491 MB/s 566 MB/s Faster peak write speed.
+15%
4K Read
Peak 4K Random Read Speed 		48.7 MB/s 53.5 MB/s Slightly faster peak random read.
+10%
4K Write
Peak 4K Random Write Speed 		126 MB/s Faster peak random write.
+19% 		106 MB/s
Mixed
Peak Sequential Mixed IO Speed 		462 MB/s 499 MB/s Slightly faster peak mixed IO speed.
+8%
4K Mixed
Peak 4K Random Mixed IO Speed 		67.6 MB/s Faster peak random mixed IO.
+13% 		60 MB/s
SusWrite
Peak Sequential Sustained Write 60s Average 		489 MB/s 567 MB/s Faster peak sustained write speed.
+16%
Value & Sentiment 
+∞%
Market Share
Based on 77,426,625 SSDs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.2 % Insanely higher market share.
+∞% 		0 %
User Rating
UBM User Rating 		51 % +2% 50 %
Nice To Haves 
+25%
Age
Newest 		44+ Months More recent.
+24% 		58+ Months
DQ Read
Peak 4K-64Thread Read Speed 		388 MB/s Much faster peak deep queue read.
+46% 		266 MB/s
DQ Write
Peak 4K-64Thread Write Speed 		363 MB/s 449 MB/s Faster peak deep queue write.
+24%
AS-SSD Total
AS-SSD Total Score 		1,294 Pts Slightly stronger server IO.
+8% 		1,202 Pts
DQ Mixed
Peak 4K-64Thread Mixed IO Speed 		373 MB/s Hugely faster peak deep queue mixed IO.
+89% 		197 MB/s
ADQ Read
Avg. 4K-64Thread Read Speed 		348 MB/s Much faster deep queue read.
+31% 		265 MB/s
ADQ Write
Avg. 4K-64Thread Write Speed 		307 MB/s 428 MB/s Much faster deep queue write.
+39%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed 		315 MB/s Much faster deep queue mixed IO.
+62% 		195 MB/s
Specifications 
Capacity
Capacity 		2TB 640GB
User Builds 
31,076
2
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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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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?
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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 $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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