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SamsungMZ-75E250B
▲ 500 ▼
  

Release date ≈ Q2 2021.

VS
▲ 5640,704 ▼

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

Effective Speed 
+319%
Real World Speed
Performance profile from 951,593 user samples
Benchmark your SSD here
2 User Benchmarks
Best Bench: 27% 32GB free (System drive)
Worst Bench: 22% 37GB free (System drive)
Poor: 22% Great: 27%
SPEED RANK: 1048th / 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 		24.7 % 103 % Hugely faster effective speed.
+319%
Average Score 
+387%
Read
Avg. Sequential Read Speed 		168 MB/s 466 MB/s Hugely faster read speed.
+177%
Write
Avg. Sequential Write Speed 		57.8 MB/s 434 MB/s Hugely faster write speed.
+651%
4K Read
Avg. 4K Random Read Speed 		10.8 MB/s 39.4 MB/s Hugely faster random read.
+265%
4K Write
Avg. 4K Random Write Speed 		27.2 MB/s 94.6 MB/s Hugely faster random write.
+248%
Mixed
Avg. Sequential Mixed IO Speed 		77.3 MB/s 370 MB/s Hugely faster mixed IO speed.
+379%
4K Mixed
Avg. 4K Random Mixed IO Speed 		6.5 MB/s 52.2 MB/s Hugely faster random mixed IO.
+703%
SusWrite
Avg. Sustained Write Speed 		63.5 MB/s 247 MB/s Hugely faster sustained write speed.
+289%
Peak Score 
+437%
Read
Peak Sequential Read Speed 		173 MB/s 507 MB/s Hugely faster peak read speed.
+193%
Write
Peak Sequential Write Speed 		61.1 MB/s 492 MB/s Hugely faster peak write speed.
+705%
4K Read
Peak 4K Random Read Speed 		11.3 MB/s 47.6 MB/s Hugely faster peak random read.
+321%
4K Write
Peak 4K Random Write Speed 		35.9 MB/s 129 MB/s Hugely faster peak random write.
+259%
Mixed
Peak Sequential Mixed IO Speed 		79.8 MB/s 416 MB/s Hugely faster peak mixed IO speed.
+421%
4K Mixed
Peak 4K Random Mixed IO Speed 		7.4 MB/s 64.6 MB/s Hugely faster peak random mixed IO.
+773%
SusWrite
Peak Sequential Sustained Write 60s Average 		67.5 MB/s 328 MB/s Hugely faster peak sustained write speed.
+386%
Value & Sentiment 
+12%
Market Share
Based on 77,378,053 SSDs tested
See market share leaders
User Rating
UBM User Rating 		50 % 56 % More popular.
+12%
Nice To Haves 
+453%
Age
Newest 		41+ Months Much more recent.
+65% 		118 Months
DQ Read
Peak 4K-64Thread Read Speed 		60.2 MB/s 386 MB/s Hugely faster peak deep queue read.
+541%
DQ Write
Peak 4K-64Thread Write Speed 		70.3 MB/s 362 MB/s Hugely faster peak deep queue write.
+415%
AS-SSD Total
AS-SSD Total Score 		246 Pts 1,290 Pts Hugely stronger server IO.
+425%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed 		44.7 MB/s 370 MB/s Hugely faster peak deep queue mixed IO.
+728%
ADQ Read
Avg. 4K-64Thread Read Speed 		57.7 MB/s 354 MB/s Hugely faster deep queue read.
+514%
ADQ Write
Avg. 4K-64Thread Write Speed 		63.7 MB/s 308 MB/s Hugely faster deep queue write.
+384%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed 		41 MB/s 320 MB/s Hugely faster deep queue mixed IO.
+680%
Specifications 
Capacity
Capacity 		64GB 250GB
Conclusion 
Average Bench 24.7%
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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