SamsungMZ-75E250B

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

  

Release date ≈ Q4 2022.

Real World Speed
Performance profile from 951,757 user samples
951,591 User Benchmarks
Best Bench: 124% 140GB free
Worst Bench: 72% 233GB free
Poor: 72% Great: 124%
SPEED RANK: 251st / 1080
166 User Benchmarks
Best Bench: 253% 364GB free (System drive)
Worst Bench: 81% 57GB free (System drive)
Poor: 81% Great: 253%
SPEED RANK: 156th / 1080
Effective Speed
Effective SSD Speed
103 % 155 % Much faster effective speed.
+50%
Read
Avg. Sequential Read Speed
466 MB/s 864 MB/s Hugely faster read speed.
+85%
Write
Avg. Sequential Write Speed
434 MB/s 1095 MB/s Hugely faster write speed.
+152%
4K Read
Avg. 4K Random Read Speed
39.4 MB/s Faster random read.
+26%
31.2 MB/s
4K Write
Avg. 4K Random Write Speed
94.6 MB/s Much faster random write.
+33%
71 MB/s
Mixed
Avg. Sequential Mixed IO Speed
370 MB/s 927 MB/s Hugely faster mixed IO speed.
+151%
4K Mixed
Avg. 4K Random Mixed IO Speed
52.2 MB/s Faster random mixed IO.
+25%
41.8 MB/s
SusWrite
Avg. Sustained Write Speed
247 MB/s 920 MB/s Hugely faster sustained write speed.
+272%
Read
Peak Sequential Read Speed
507 MB/s 1534 MB/s Hugely faster peak read speed.
+203%
Write
Peak Sequential Write Speed
492 MB/s 2145 MB/s Hugely faster peak write speed.
+336%
4K Read
Peak 4K Random Read Speed
47.6 MB/s 49.1 MB/s +3%
4K Write
Peak 4K Random Write Speed
129 MB/s 137 MB/s Slightly faster peak random write.
+6%
Mixed
Peak Sequential Mixed IO Speed
416 MB/s 1541 MB/s Hugely faster peak mixed IO speed.
+270%
4K Mixed
Peak 4K Random Mixed IO Speed
64.6 MB/s 69.3 MB/s Slightly faster peak random mixed IO.
+7%
SusWrite
Peak Sequential Sustained Write 60s Average
328 MB/s 1674 MB/s Hugely faster peak sustained write speed.
+410%
Market Share
Based on 76,206,313 SSDs tested
Market Share
Market Share (trailing 30 days)
0.68 % Insanely higher market share.
+6,700%
0.01 %
User Rating
UBM User Rating
56 % More popular.
+12%
50 %
Age
Newest
114 Months 20+ Months Hugely more recent.
+82%
DQ Read
Peak 4K-64Thread Read Speed
386 MB/s 1290 MB/s Hugely faster peak deep queue read.
+234%
DQ Write
Peak 4K-64Thread Write Speed
362 MB/s 824 MB/s Hugely faster peak deep queue write.
+128%
AS-SSD Total
AS-SSD Total Score
1,290 Pts 3,469 Pts Hugely stronger server IO.
+169%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
370 MB/s 1017 MB/s Hugely faster peak deep queue mixed IO.
+175%
ADQ Read
Avg. 4K-64Thread Read Speed
354 MB/s 632 MB/s Much faster deep queue read.
+79%
ADQ Write
Avg. 4K-64Thread Write Speed
308 MB/s +1% 304 MB/s
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
320 MB/s 508 MB/s Much faster deep queue mixed IO.
+59%
Capacity
Capacity
250GB 512GB
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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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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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