UserBenchmark: Samsung 840 vs SanDisk Ultra Plus

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SanDiskSDSSDHP-064-G25

SamsungMZ-7TD250BW

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Real World Speed

Performance profile from 43,115 user samples

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1,117 User Benchmarks

Best Bench: 81% 60GB free
Worst Bench: 51% 9GB free (System drive)

Poor: 51% Great: 81%

SPEED RANK: 681^st / 1072

41,998 User Benchmarks

Best Bench: 85% 214GB free
Worst Bench: 51% 160GB free (System drive)

Poor: 51% Great: 85%

SPEED RANK: 677^th / 1072


Effective Speed Effective SSD Speed		69.2 %			69.6 %	+0%


Read Avg. Sequential Read Speed	410 MB/s		415 MB/s	+1%
Write Avg. Sequential Write Speed	138 MB/s		190 MB/s	Much faster write speed. +38%
4K Read Avg. 4K Random Read Speed	27.7 MB/s	Slightly faster random read. +6%	26.1 MB/s
4K Write Avg. 4K Random Write Speed	72.1 MB/s	+1%	71.3 MB/s
Mixed Avg. Sequential Mixed IO Speed	166 MB/s	Faster mixed IO speed. +11%	150 MB/s
4K Mixed Avg. 4K Random Mixed IO Speed	30.5 MB/s	Much faster random mixed IO. +36%	22.5 MB/s
SusWrite Avg. Sustained Write Speed	126 MB/s		174 MB/s	Much faster sustained write speed. +38%


Read Peak Sequential Read Speed	476 MB/s		485 MB/s	+2%
Write Peak Sequential Write Speed	153 MB/s		254 MB/s	Much faster peak write speed. +66%
4K Read Peak 4K Random Read Speed	33.4 MB/s	Faster peak random read. +11%	30.2 MB/s
4K Write Peak 4K Random Write Speed	102 MB/s		103 MB/s	+1%
Mixed Peak Sequential Mixed IO Speed	186 MB/s	Slightly faster peak mixed IO speed. +6%	176 MB/s
4K Mixed Peak 4K Random Mixed IO Speed	37.2 MB/s	Much faster peak random mixed IO. +41%	26.3 MB/s
SusWrite Peak Sequential Sustained Write 60s Average	153 MB/s		248 MB/s	Much faster peak sustained write speed. +62%

Market Share

Based on 75,731,933 SSDs tested

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Market Share Market Share (trailing 30 days)		0 %			0.03 %	Insanely higher market share. +∞%
User Rating UBM User Rating		50 %			52 %	+4%


Age Newest	121+ Months	More recent. +12%	138 Months
DQ Read Peak 4K-64Thread Read Speed	300 MB/s		369 MB/s	Faster peak deep queue read. +23%
DQ Write Peak 4K-64Thread Write Speed	150 MB/s		219 MB/s	Much faster peak deep queue write. +46%
AS-SSD Total AS-SSD Total Score	839 Pts		1,022 Pts	Stronger server IO. +22%
DQ Mixed Peak 4K-64Thread Mixed IO Speed	120 MB/s	Hugely faster peak deep queue mixed IO. +102%	59.3 MB/s
ADQ Read Avg. 4K-64Thread Read Speed	263 MB/s		318 MB/s	Faster deep queue read. +21%
ADQ Write Avg. 4K-64Thread Write Speed	134 MB/s		161 MB/s	Faster deep queue write. +20%
ADQ Mixed Avg. 4K-64Thread Mixed IO Speed	109 MB/s	Hugely faster deep queue mixed IO. +99%	54.9 MB/s


Capacity Capacity			64GB			250GB

The Samsung 840 is the budget version of the 840 Pro, the main difference between the hardware on the two drives is the type of flash memory used. The cheaper 840 uses TLC NAND which is cheaper than the MLC found in the Pro version of this drive. The performance hit as a result of the cheaper TLC memory is approximately 30%. The 840 delvers both average real world speeds (435 MB/s) and average enterprise speeds (AS-SSD Total Score 920). The relative weak spots in this drives performance profile are its write ability, where it scores just 254 MB/s in the sequential write test. The upside to the lost performance over the Pro version is a significant reduction in price which leaves this drive an average value for money proposition at its current price of £135. There are, however, better value drives to be had elsewhere including Samsungs own newly released EVO which effectively supersedes the 840. ^{[Aug '13 SSDrivePro]}

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Solid State Drive Rankings (Price vs Performance) April 2024 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]

Group Test Results

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Frequently Asked Questions

Storage Devices FAQ

What is sustained sequential write speed?

What’s the difference between SLC, MLC and TLC?

What is 3D XPoint and how fast is it?

What’s the difference between SATA, PCIe and NVMe?

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CPU	GPU	SSD
Intel Core i5-13600K $269	Nvidia RTX 4060 $295	Crucial MX500 250GB $40
Intel Core i5-12400F $133	Nvidia RTX 4060-Ti $385	Samsung 850 Evo 120GB $80
Intel Core i5-12600K $178	Nvidia RTX 4070 $539	Samsung 860 Evo 250GB $52

HDD	RAM	USB
Seagate Barracuda 1TB (2016) $39	Corsair Vengeance LPX DDR4 3200 C16 2x8GB $45	SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $37	Corsair Vengeance LPX DDR4 3000 C15 2x8GB $43	SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $48	G.SKILL Trident Z DDR4 3200 C14 4x16GB $351	SanDisk Ultra Fit 32GB $16