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SamsungMZ-77E4T0B
SamsungMZ-7TE250BW
▲ 5121 ▼

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

VS
▲ 5335,450 ▼

Controller: Samsung 3 Core MEX. Memory: Samsung 19nm Toggle Mode TLC. Release date: Q3 2013.

Effective Speed 
+22%
Real World Speed
Performance profile from 226,569 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
217,115 User Benchmarks
Best Bench: 118% 68GB free
Worst Bench: 64% 231GB free
Poor: 64% Great: 118%
SPEED RANK: 284th / 1080
Effective Speed
Effective SSD Speed 		117 % Faster effective speed.
+22% 		95.9 %
Average Score 
+27%
Read
Avg. Sequential Read Speed 		481 MB/s +3% 465 MB/s
Write
Avg. Sequential Write Speed 		451 MB/s Faster write speed.
+14% 		394 MB/s
4K Read
Avg. 4K Random Read Speed 		40.5 MB/s +4% 38.8 MB/s
4K Write
Avg. 4K Random Write Speed 		90 MB/s Slightly faster random write.
+6% 		85.3 MB/s
Mixed
Avg. Sequential Mixed IO Speed 		426 MB/s Faster mixed IO speed.
+23% 		347 MB/s
4K Mixed
Avg. 4K Random Mixed IO Speed 		53.6 MB/s Faster random mixed IO.
+12% 		48 MB/s
SusWrite
Avg. Sustained Write Speed 		445 MB/s Hugely faster sustained write speed.
+128% 		195 MB/s
Peak Score 
+15%
Read
Peak Sequential Read Speed 		517 MB/s +2% 507 MB/s
Write
Peak Sequential Write Speed 		491 MB/s +0% 489 MB/s
4K Read
Peak 4K Random Read Speed 		48.8 MB/s +4% 46.7 MB/s
4K Write
Peak 4K Random Write Speed 		131 MB/s Faster peak random write.
+10% 		119 MB/s
Mixed
Peak Sequential Mixed IO Speed 		464 MB/s Faster peak mixed IO speed.
+11% 		418 MB/s
4K Mixed
Peak 4K Random Mixed IO Speed 		68.1 MB/s Faster peak random mixed IO.
+14% 		59.8 MB/s
SusWrite
Peak Sequential Sustained Write 60s Average 		489 MB/s Much faster peak sustained write speed.
+64% 		299 MB/s
Value & Sentiment 
+28%
Market Share
Based on 77,568,935 SSDs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.07 % 0.18 % Hugely higher market share.
+157%
Value
Value For Money 		54.7 % Hugely better value.
+338% 		12.5 %
User Rating
UBM User Rating 		51 % 53 % +4%
Price
Price (score) 		$287 $99 Much cheaper.
+65%
Nice To Haves 
+25%
Age
Newest 		45+ Months Much more recent.
+67% 		136 Months
DQ Read
Peak 4K-64Thread Read Speed 		389 MB/s +2% 383 MB/s
DQ Write
Peak 4K-64Thread Write Speed 		364 MB/s +1% 362 MB/s
AS-SSD Total
AS-SSD Total Score 		1,301 Pts +2% 1,273 Pts
DQ Mixed
Peak 4K-64Thread Mixed IO Speed 		374 MB/s Much faster peak deep queue mixed IO.
+58% 		237 MB/s
ADQ Read
Avg. 4K-64Thread Read Speed 		354 MB/s Slightly faster deep queue read.
+5% 		337 MB/s
ADQ Write
Avg. 4K-64Thread Write Speed 		305 MB/s +4% 293 MB/s
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed 		324 MB/s Much faster deep queue mixed IO.
+60% 		203 MB/s
Specifications 
Capacity
Capacity 		4TB 250GB
Conclusion 
Average Bench 117%
Average Bench 95.9%

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

The Evo is remarkable in that, like the Sandisk Extreme II, it features a second level cache. For the 250 GB Evo this consists of a 3 GB Turbowrite cache (TWC) which is a block of high speed Flash Memory. When the TWC is exhausted write speeds drop by approximately 50% but that won't often happen under typical consumer workloads. In terms of raw performance, even with its cache, the Evo still isn't the fastest drive. With a real world speed index reading of 439 MB/s the EVO is however, within reach of the two speed leaders (Vector and 850 Pro). At a price point of $130 the Evo is around 30% cheaper making it the best value for money SSDs I have seen in 2014. Comparing the Evo and the Sandisk Ultra Plus shows that the Evo is the winner but the Sandisk may be a viable alternative thanks to its cache-free, and therefore more consistent performance during extended writes. [Aug '14 SSDrivePro]

MORE DETAILS

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217,115
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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.
  • 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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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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  • - Reports are generated and presented on userbenchmark.com
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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?
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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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Marketers operate thousands of reddit accounts. Our benchmarks expose their spiel so they attack our reputation.
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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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We don't pay youtubers, so they don't praise us. Moreover, our data obstructs youtubers who promote overpriced or inferior products.
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The Best
CPUGPUSSD
Intel Core i5-13600K $210Nvidia RTX 4060 $290WD Black SN850X M.2 2TB $135
Intel Core i5-12400F $111Nvidia RTX 4060-Ti $389WD Black SN850X M.2 1TB $84
Intel Core i5-12600K $167Nvidia RTX 4070 $500Crucial T700 M.2 4TB $406
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