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SamsungMZ-7TE1T0BW
SamsungMZ-75E250B
▲ 5016 ▼

Controller: Samsung 3 Core MEX. Memory: Samsung 19nm Toggle Mode TLC. Release date ≤ Q4 2013.

VS
▲ 5640,704 ▼

Controller: Samsung Dual Core MGX. Memory: Samsung 40nm TLC V-NAND. Release date: Q4 2014.

Effective Speed 
+2%
Real World Speed
Performance profile from 975,448 user samples
Benchmark your SSD here
23,857 User Benchmarks
Best Bench: 126% 236GB free
Worst Bench: 78% 86GB free (System drive)
Poor: 78% Great: 126%
SPEED RANK: 241st / 1080
951,591 User Benchmarks
Best Bench: 124% 140GB free
Worst Bench: 72% 233GB free
Poor: 72% Great: 124%
SPEED RANK: 251st / 1080
Effective Speed
Effective SSD Speed 		105 % +2% 103 %
Average Score 
+1%
Read
Avg. Sequential Read Speed 		470 MB/s +1% 466 MB/s
Write
Avg. Sequential Write Speed 		370 MB/s 434 MB/s Faster write speed.
+17%
4K Read
Avg. 4K Random Read Speed 		39.1 MB/s 39.4 MB/s +1%
4K Write
Avg. 4K Random Write Speed 		82.6 MB/s 94.6 MB/s Faster random write.
+15%
Mixed
Avg. Sequential Mixed IO Speed 		341 MB/s 370 MB/s Slightly faster mixed IO speed.
+9%
4K Mixed
Avg. 4K Random Mixed IO Speed 		49.5 MB/s 52.2 MB/s Slightly faster random mixed IO.
+5%
SusWrite
Avg. Sustained Write Speed 		346 MB/s Much faster sustained write speed.
+40% 		247 MB/s
Peak Score 
+4%
Read
Peak Sequential Read Speed 		507 MB/s 507 MB/s
Write
Peak Sequential Write Speed 		486 MB/s 492 MB/s +1%
4K Read
Peak 4K Random Read Speed 		46.5 MB/s 47.6 MB/s +2%
4K Write
Peak 4K Random Write Speed 		117 MB/s 129 MB/s Faster peak random write.
+10%
Mixed
Peak Sequential Mixed IO Speed 		421 MB/s +1% 416 MB/s
4K Mixed
Peak 4K Random Mixed IO Speed 		61.7 MB/s 64.6 MB/s +5%
SusWrite
Peak Sequential Sustained Write 60s Average 		479 MB/s Much faster peak sustained write speed.
+46% 		328 MB/s
Value & Sentiment 
+1,723%
Market Share
Based on 77,565,922 SSDs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.01 % 0.7 % Insanely higher market share.
+6,900%
Value
Value For Money 		22.9 % Much better value.
+71% 		13.4 %
User Rating
UBM User Rating 		50 % 56 % More popular.
+12%
Price
Price (score) 		$199 $100 Much cheaper.
+50%
Nice To Haves 
+15%
Age
Newest 		131+ Months 119 Months Slightly more recent.
+9%
DQ Read
Peak 4K-64Thread Read Speed 		385 MB/s 386 MB/s +0%
DQ Write
Peak 4K-64Thread Write Speed 		361 MB/s 362 MB/s +0%
AS-SSD Total
AS-SSD Total Score 		1,272 Pts 1,290 Pts +1%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed 		269 MB/s 370 MB/s Much faster peak deep queue mixed IO.
+38%
ADQ Read
Avg. 4K-64Thread Read Speed 		335 MB/s 354 MB/s Slightly faster deep queue read.
+6%
ADQ Write
Avg. 4K-64Thread Write Speed 		261 MB/s 308 MB/s Faster deep queue write.
+18%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed 		220 MB/s 320 MB/s Much faster deep queue mixed IO.
+45%
Specifications 
Capacity
Capacity 		1TB 250GB
Conclusion 
Average Bench 105%
Average Bench 103%

The 250GB Samsung 850 Evo has a similar architecture to its hugely successful predecessor, the 840 Evo. Both drives are TLC based but the 850 uses 3D V-NAND as opposed to regular NAND. Both drives also feature a Turbowrite cache (TWC) which buffers up to 3GB of writes. The TWC enables high burst write speeds but when the cache exhausts write speeds drop to 300 MB/s. Comparing the 850 and 840 Evos shows that effective speed, has improved by 11% and the warranty has been extended from three to five years but prices are also up by 11%. The 850 Evo does put in superb benchmarks (second only to the 850 Pro) but these are only valid within the TWC. At current price levels the 850 Evo struggles to compete with the value leaders. [Dec '14 SSDrivePro]

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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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 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?
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The Best
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Intel Core i5-13600K $210Nvidia RTX 4060 $280WD 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 $400
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