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SamsungMZ-75E250B
SamsungMZ-76P256BW
▲ 5640,704 ▼

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

VS
▲ 52216 ▼

Controller: Samsung MJX. Memory: Samsung 64 layer MLC V-NAND. Release date: Q1 2018.

Effective Speed 
+5%
Real World Speed
Performance profile from 964,156 user samples
Benchmark your SSD here
951,591 User Benchmarks
Best Bench: 124% 140GB free
Worst Bench: 72% 233GB free
Poor: 72% Great: 124%
SPEED RANK: 251st / 1080
12,565 User Benchmarks
Best Bench: 131% 228GB free
Worst Bench: 78% 69GB free (System drive)
Poor: 78% Great: 131%
SPEED RANK: 228th / 1080
Effective Speed
Effective SSD Speed 		103 % 109 % Slightly faster effective speed.
+5%
Average Score 
+7%
Read
Avg. Sequential Read Speed 		466 MB/s 474 MB/s +2%
Write
Avg. Sequential Write Speed 		434 MB/s +4% 419 MB/s
4K Read
Avg. 4K Random Read Speed 		39.4 MB/s +5% 37.7 MB/s
4K Write
Avg. 4K Random Write Speed 		94.6 MB/s +1% 93.3 MB/s
Mixed
Avg. Sequential Mixed IO Speed 		370 MB/s 398 MB/s Slightly faster mixed IO speed.
+8%
4K Mixed
Avg. 4K Random Mixed IO Speed 		52.2 MB/s Slightly faster random mixed IO.
+8% 		48.3 MB/s
SusWrite
Avg. Sustained Write Speed 		247 MB/s 388 MB/s Much faster sustained write speed.
+57%
Peak Score 
+7%
Read
Peak Sequential Read Speed 		507 MB/s 515 MB/s +2%
Write
Peak Sequential Write Speed 		492 MB/s +1% 488 MB/s
4K Read
Peak 4K Random Read Speed 		47.6 MB/s +4% 45.9 MB/s
4K Write
Peak 4K Random Write Speed 		129 MB/s +1% 128 MB/s
Mixed
Peak Sequential Mixed IO Speed 		416 MB/s 448 MB/s Slightly faster peak mixed IO speed.
+8%
4K Mixed
Peak 4K Random Mixed IO Speed 		64.6 MB/s Slightly faster peak random mixed IO.
+6% 		61 MB/s
SusWrite
Peak Sequential Sustained Write 60s Average 		328 MB/s 487 MB/s Much faster peak sustained write speed.
+48%
Value & Sentiment 
+1,720%
Market Share
Based on 77,606,037 SSDs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.7 % Insanely higher market share.
+6,900% 		0.01 %
Value
Value For Money 		13.4 % 15.5 % Better value.
+16%
User Rating
UBM User Rating 		56 % Slightly more popular.
+8% 		52 %
Price
Price (score) 		$100 $90 Slightly cheaper.
+10%
Nice To Haves 
+3%
Age
Newest 		119 Months 81 Months Much more recent.
+32%
DQ Read
Peak 4K-64Thread Read Speed 		386 MB/s 389 MB/s +1%
DQ Write
Peak 4K-64Thread Write Speed 		362 MB/s +0% 361 MB/s
AS-SSD Total
AS-SSD Total Score 		1,290 Pts +0% 1,289 Pts
DQ Mixed
Peak 4K-64Thread Mixed IO Speed 		370 MB/s +1% 367 MB/s
ADQ Read
Avg. 4K-64Thread Read Speed 		354 MB/s +3% 343 MB/s
ADQ Write
Avg. 4K-64Thread Write Speed 		308 MB/s +4% 296 MB/s
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed 		320 MB/s +4% 309 MB/s
Specifications 
Capacity
Capacity 		250GB 256GB
Conclusion 
Average Bench 103%
Average Bench 109%

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 860 Pro is Samsung’s latest consumer-grade SATA SSD flagship, superseding the popular, but now three years old, 850 Pro. Like the 850 Pro, the 860 Pro is based on Samsung’s proprietary and revolutionary (at the time), MLC V-NAND (3D). A 10% price premium over the 256 GB 850 Pro will purchase the 256 GB 860 Pro which has an impressive 16% faster effective speed. This is achieved via an updated controller (MJX) and 64 layers of V-NAND (versus 32 layers per the 850 Pro). The 860 Pro has sequential speeds of up to 540 MB/s which almost completely saturate its SATA 3.0 interface. These peak levels of performance are slightly higher, but still comparable to the peak performance of the 860 Evo before its SLC write cache (12 GB on the 250 GB Evo) is saturated, making the 860 Evo (at around 30% cheaper) a more economical choice for users who rarely write more than 12 GB at a time. There are also reliability improvements compared to the 850 generation with Samsung now offering a warranty of 300 TBW (terabytes written) for the 256 GB 860 Pro, compared to 150 TBW for the 256 GB 850 Pro. Thanks to higher density NAND, the 860 Pro is also available in a 4 TB variant, whereas previously 2 TB was the largest capacity for a Samsung SATA MLC SSD.  [Feb '18 SSDrivePro]

MORE DETAILS

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Solid State Drive Rankings (Price vs Performance) November 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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 Frequently Asked Questions

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Solid State Drives
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The Best
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