SamsungMZ-75E250B
SamsungMZ-7TE250BW

Controller: Samsung Dual Core MGX. Memory: Samsung 40nm TLC V-NAND

Controller: Samsung 3 Core MEX. Memory: Samsung 19nm Toggle Mode TLC.

Real World Speed
Performance profile from 310,609 user samples
250,644 User Benchmarks
Best Bench: 116% 15GB free
Worst Bench: 67% 7GB free
Poor: 67% Great: 116%
SPEED RANK: 83rd / 885
59,965 User Benchmarks
Best Bench: 96% 33GB free
Worst Bench: 60% 201GB free
Poor: 60% Great: 96%
SPEED RANK: 214th / 885
Effective Speed
Effective SSD Speed
93.7 % Faster effective speed.
+17%
80 %
Read
Avg. Sequential Read Speed
495 MB/s +2% 485 MB/s
Write
Avg. Sequential Write Speed
393 MB/s Faster write speed.
+22%
322 MB/s
4K Read
Avg. 4K Random Read Speed
37.5 MB/s +4% 36.1 MB/s
4K Write
Avg. 4K Random Write Speed
75.3 MB/s Much faster random write.
+30%
57.9 MB/s
Mixed
Avg. Sequential Mixed IO Speed
399 MB/s Faster mixed IO speed.
+20%
332 MB/s
4K Mixed
Avg. 4K Random Mixed IO Speed
32.4 MB/s Much faster random mixed IO.
+54%
21.1 MB/s
Read
Peak Sequential Read Speed
517 MB/s +1% 510 MB/s
Write
Peak Sequential Write Speed
417 MB/s Faster peak write speed.
+18%
352 MB/s
4K Read
Peak 4K Random Read Speed
47.2 MB/s +4% 45.3 MB/s
4K Write
Peak 4K Random Write Speed
104 MB/s Faster peak random write.
+27%
82.2 MB/s
Mixed
Peak Sequential Mixed IO Speed
422 MB/s Faster peak mixed IO speed.
+18%
358 MB/s
4K Mixed
Peak 4K Random Mixed IO Speed
47.9 MB/s Much faster peak random mixed IO.
+74%
27.5 MB/s
Market Share
Based on 5,657,586 SSDs tested.
Market Share
Market Share (trailing 30 days)
7.95 % Hugely higher market share.
+536%
1.25 %
Value
Value For Money
99.1 % Hugely better value.
+82%
54.6 %
User Rating
UBM User Rating
125 % Hugely more popular.
+116%
58 %
Price
Price (score)
$88 Much cheaper.
+44%
$158
Age
Newest
38 Months Much more recent.
+31%
55 Months
DQ Read
Peak 4K-64Thread Read Speed
371 MB/s +2% 365 MB/s
DQ Write
Peak 4K-64Thread Write Speed
282 MB/s Faster peak deep queue write.
+18%
238 MB/s
AS-SSD Total
AS-SSD Total Score
1,151 Pts Slightly stronger server IO.
+8%
1,062 Pts
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
118 MB/s Much faster peak deep queue mixed IO.
+39%
84.7 MB/s
ADQ Read
Avg. 4K-64Thread Read Speed
190 MB/s 201 MB/s Slightly faster deep queue read.
+6%
ADQ Write
Avg. 4K-64Thread Write Speed
180 MB/s Faster deep queue write.
+17%
154 MB/s
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
67 MB/s Much faster deep queue mixed IO.
+32%
50.8 MB/s
Capacity
Capacity
250GB 250GB
ADVERTISEMENT

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]

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

Solid State Drive Rankings (Price vs Performance) February 2018 SSD Rankings.

Welcome to our 2.5" and M.2 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]

ADVERTISEMENT

Group Test Results

  • Best user rated - Sometimes benchmarks get it completely wrong...
  • Fastest real world speed - Real World Speed measures performance for typical consumers.
  • Best value for money - Value for money is based on real world performance, price and capacity.
  • Raw speed comparison - Raw speed readings.
  • Details ordered by value - Detailed performance stats ordered by overall value for money.
How Fast Is Your SSD? (Bench your build) Size up your PC in less than a minute.

Welcome to our freeware 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 upgrades.

UserBenchmark of the month

How it works

  • - Download and run UserBenchMark (UBM).
  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
  • - Drive tests include: read, write and mixed IO.
  • - Checks include: 4k Align, NCQ, TRIM, SATA, USB & S.M.A.R.T.
  • - RAM tests include: single/multi core bandwidth and latency.
  • - Reports are generated and presented on userbenchmark.com.
  • - Identify the strongest components in your PC.
  • - See speed test results from other users.
  • - Compare your components to the highest voted in class.
  • - Find the best upgrades.
  • - Share your opinion by voting.

 Frequently Asked Questions

 Best User Rated

The Best.
CPUGPUSSD
Intel Core i7-8700K $330Nvidia GTX 1070 $430Samsung 850 Evo 250GB $88
Intel Core i7-7700K $290Nvidia GTX 1060-6GB $285Samsung 850 Evo 500GB $149
AMD Ryzen 5 1600 $170AMD RX 480 $400Samsung 850 Pro 256GB $146
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $185SanDisk Extreme 64GB $50
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $975SanDisk Extreme 32GB $23
Seagate Barracuda 2TB (2016) $60Corsair Vengeance LPX DDR4 3200 C16 2x8GB $206SanDisk Extreme 16GB $18
Today's hottest deals
User Guide  •  About  •  FAQs  •  @Email  •  Privacy  •  Developer Feedback