Samsung
SamsungMZ-75E250B
  

Release date ≈ Q4 2018.

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

Real World Speed
Performance profile from 953,604 user samples
2,013 User Benchmarks
Best Bench: 284% 477GB free
Worst Bench: 178% 432GB free (System drive)
Poor: 178% Great: 284%
SPEED RANK: 72nd / 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
240 % Hugely faster effective speed.
+132%
103 %
Read
Avg. Sequential Read Speed
2024 MB/s Hugely faster read speed.
+334%
466 MB/s
Write
Avg. Sequential Write Speed
1683 MB/s Hugely faster write speed.
+288%
434 MB/s
4K Read
Avg. 4K Random Read Speed
54.2 MB/s Much faster random read.
+38%
39.4 MB/s
4K Write
Avg. 4K Random Write Speed
132 MB/s Much faster random write.
+40%
94.6 MB/s
Mixed
Avg. Sequential Mixed IO Speed
1269 MB/s Hugely faster mixed IO speed.
+243%
370 MB/s
4K Mixed
Avg. 4K Random Mixed IO Speed
71 MB/s Much faster random mixed IO.
+36%
52.2 MB/s
SusWrite
Avg. Sustained Write Speed
687 MB/s Hugely faster sustained write speed.
+178%
247 MB/s
Read
Peak Sequential Read Speed
2345 MB/s Hugely faster peak read speed.
+363%
507 MB/s
Write
Peak Sequential Write Speed
1949 MB/s Hugely faster peak write speed.
+296%
492 MB/s
4K Read
Peak 4K Random Read Speed
66.9 MB/s Much faster peak random read.
+41%
47.6 MB/s
4K Write
Peak 4K Random Write Speed
182 MB/s Much faster peak random write.
+41%
129 MB/s
Mixed
Peak Sequential Mixed IO Speed
1558 MB/s Hugely faster peak mixed IO speed.
+275%
416 MB/s
4K Mixed
Peak 4K Random Mixed IO Speed
89.8 MB/s Much faster peak random mixed IO.
+39%
64.6 MB/s
SusWrite
Peak Sequential Sustained Write 60s Average
854 MB/s Hugely faster peak sustained write speed.
+160%
328 MB/s
Market Share
Based on 76,154,691 SSDs tested
Market Share
Market Share (trailing 30 days)
0.02 % 0.74 % Insanely higher market share.
+3,600%
User Rating
UBM User Rating
50 % 56 % More popular.
+12%
Age
Newest
68+ Months Much more recent.
+40%
114 Months
DQ Read
Peak 4K-64Thread Read Speed
1539 MB/s Hugely faster peak deep queue read.
+299%
386 MB/s
DQ Write
Peak 4K-64Thread Write Speed
1252 MB/s Hugely faster peak deep queue write.
+246%
362 MB/s
AS-SSD Total
AS-SSD Total Score
4,403 Pts Hugely stronger server IO.
+241%
1,290 Pts
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
1342 MB/s Hugely faster peak deep queue mixed IO.
+263%
370 MB/s
ADQ Read
Avg. 4K-64Thread Read Speed
1076 MB/s Hugely faster deep queue read.
+204%
354 MB/s
ADQ Write
Avg. 4K-64Thread Write Speed
810 MB/s Hugely faster deep queue write.
+163%
308 MB/s
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
914 MB/s Hugely faster deep queue mixed IO.
+186%
320 MB/s
Capacity
Capacity
512GB 250GB
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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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Solid State Drive Rankings (Price vs Performance) June 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]

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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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