UserBenchmark: Samsung 840 Evo vs 860

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Real World Speed

Performance profile from 401,258 user samples

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104,444 User Benchmarks

Best Bench: 108% 112GB free
Worst Bench: 63% 42GB free

Poor: 63% Great: 108%

SPEED RANK: 320^th / 1080

296,814 User Benchmarks

Best Bench: 128% 34GB free
Worst Bench: 75% 64GB free (System drive)

Poor: 75% Great: 128%

SPEED RANK: 250^th / 1080


Effective Speed Effective SSD Speed		91.4 %			104 %	Faster effective speed. +13%


Read Avg. Sequential Read Speed	461 MB/s		480 MB/s	+4%
Write Avg. Sequential Write Speed	404 MB/s	Slightly faster write speed. +6%	381 MB/s
4K Read Avg. 4K Random Read Speed	38.9 MB/s	+2%	38.1 MB/s
4K Write Avg. 4K Random Write Speed	87 MB/s		95.7 MB/s	Slightly faster random write. +10%
Mixed Avg. Sequential Mixed IO Speed	317 MB/s		363 MB/s	Faster mixed IO speed. +15%
4K Mixed Avg. 4K Random Mixed IO Speed	45.8 MB/s		47.9 MB/s	+5%
SusWrite Avg. Sustained Write Speed	136 MB/s		285 MB/s	Hugely faster sustained write speed. +110%


Read Peak Sequential Read Speed	506 MB/s	517 MB/s	+2%
Write Peak Sequential Write Speed	489 MB/s	492 MB/s	+1%
4K Read Peak 4K Random Read Speed	46.3 MB/s	50 MB/s	Slightly faster peak random read. +8%
4K Write Peak 4K Random Write Speed	118 MB/s	126 MB/s	Slightly faster peak random write. +7%
Mixed Peak Sequential Mixed IO Speed	392 MB/s	466 MB/s	Faster peak mixed IO speed. +19%
4K Mixed Peak 4K Random Mixed IO Speed	55.6 MB/s	66.5 MB/s	Faster peak random mixed IO. +20%
SusWrite Peak Sequential Sustained Write 60s Average	179 MB/s	379 MB/s	Hugely faster peak sustained write speed. +112%

Market Share

Based on 77,568,290 SSDs tested

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Market Share Market Share (trailing 30 days)	0.11 %	0.39 %	Hugely higher market share. +255%
Value Value For Money	7.7 %	21.9 %	Hugely better value. +184%
User Rating UBM User Rating	54 %	57 %	Slightly more popular. +6%
Price Price (score)	$85	$52	Much cheaper. +39%


Age Newest	136 Months		81 Months	Much more recent. +40%
DQ Read Peak 4K-64Thread Read Speed	381 MB/s		389 MB/s	+2%
DQ Write Peak 4K-64Thread Write Speed	362 MB/s		362 MB/s
AS-SSD Total AS-SSD Total Score	1,268 Pts		1,297 Pts	+2%
DQ Mixed Peak 4K-64Thread Mixed IO Speed	179 MB/s		371 MB/s	Hugely faster peak deep queue mixed IO. +107%
ADQ Read Avg. 4K-64Thread Read Speed	339 MB/s		357 MB/s	Slightly faster deep queue read. +5%
ADQ Write Avg. 4K-64Thread Write Speed	297 MB/s	+2%	291 MB/s
ADQ Mixed Avg. 4K-64Thread Mixed IO Speed	160 MB/s		278 MB/s	Much faster deep queue mixed IO. +74%


Capacity Capacity			120GB			250GB

The 120GB Evo, like its 250GB sibling, features a second level Turbowrite cache (TWC). This 3GB block of high speed SLC memory allows the Evo to write data at 370 MB/s, nearly double its normal rate. When the TWC is full write speeds drop by around 50% but since consumers generally write less than 3GB in a typical write operation, the performance drop will rarely be noticed. On the other hand, in a server environment this sort of performance degradation would be unacceptable. Comparing the 120GB and 250GB Evos shows that they have similar performance profiles. The performance equivalence between the different capacities, coupled with the fact that their prices are almost linear, implies that both capacities represent roughly the same value for money. Within its TWC, the 120GB Evo is capable of chart topping burst IO rates and it sits squarely amongst the best performing 120GB drives. ^{[Aug '14 SSDrivePro]}

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The 860 Evo is the latest mainstream SATA SSD from Samsung. The 2.5-inch version of the 860 Evo will be available in several capacities ranging from 250 GB to a staggering 4TB. It’s also available in the slimmer M.2 and mSATA form factors. The 860 Evo demonstrates marginally reduced performance compared to its popular, but now three year old predecessor, the 850 Evo. In a head to head comparison the 860 looses by a very modest 6% in terms of effective speed. The 860 Evo is based on a refinement of Samsung’s consumer grade TLC V-NAND, this time featuring 256Gb and 512 Gb 64 layer V-NAND and it also features a new "MJX" controller. The 250 GB version can reach sequential write speeds of up to 520 MB/s, dropping to 300 MB/s once the SLC cache is exhausted (the 250 GB version has a 12 GB SLC write cache). Peak sequential read speeds of 560 MB/s are achievable across the different capacities. The 250GB version has a 512 MB LPDDR4 DRAM cache. All capacities have a five year warranty, but as a testament to the enhanced reliability of this new technology, the warrantied terabytes written (TBW) has doubled from 75 TBW to 150 TBW for the 250 GB 860 Evo. ^{[Jan '18 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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CPU	GPU	SSD
Intel Core i5-13600K $210	Nvidia RTX 4060 $290	WD Black SN850X M.2 2TB $135
Intel Core i5-12400F $111	Nvidia RTX 4060-Ti $389	WD Black SN850X M.2 1TB $84
Intel Core i5-12600K $167	Nvidia RTX 4070 $500	Crucial T700 M.2 4TB $406

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