UserBenchmark: Samsung 840 vs Transcend SSD370

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SamsungMZ-7TD250BW

BUY • $251

TranscendTS256GSSD370

BUY • $110

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Real World Speed

Performance profile from 47,247 user samples

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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

5,249 User Benchmarks

Best Bench: 96% 139GB free
Worst Bench: 54% 14GB free (System drive)

Poor: 54% Great: 96%

SPEED RANK: 487^th / 1072


Effective Speed Effective SSD Speed		69.6 %			80 %	Faster effective speed. +15%


Read Avg. Sequential Read Speed	415 MB/s		465 MB/s	Faster read speed. +12%
Write Avg. Sequential Write Speed	190 MB/s		283 MB/s	Much faster write speed. +49%
4K Read Avg. 4K Random Read Speed	26.1 MB/s	Slightly faster random read. +7%	24.5 MB/s
4K Write Avg. 4K Random Write Speed	71.3 MB/s		73.3 MB/s	+3%
Mixed Avg. Sequential Mixed IO Speed	150 MB/s		251 MB/s	Much faster mixed IO speed. +67%
4K Mixed Avg. 4K Random Mixed IO Speed	22.5 MB/s		33.2 MB/s	Much faster random mixed IO. +48%
SusWrite Avg. Sustained Write Speed	174 MB/s		231 MB/s	Much faster sustained write speed. +33%


Read Peak Sequential Read Speed	485 MB/s		513 MB/s	Slightly faster peak read speed. +6%
Write Peak Sequential Write Speed	254 MB/s		301 MB/s	Faster peak write speed. +19%
4K Read Peak 4K Random Read Speed	30.2 MB/s	+4%	29 MB/s
4K Write Peak 4K Random Write Speed	103 MB/s		108 MB/s	+5%
Mixed Peak Sequential Mixed IO Speed	176 MB/s		296 MB/s	Much faster peak mixed IO speed. +68%
4K Mixed Peak 4K Random Mixed IO Speed	26.3 MB/s		41.3 MB/s	Much faster peak random mixed IO. +57%
SusWrite Peak Sequential Sustained Write 60s Average	248 MB/s		295 MB/s	Faster peak sustained write speed. +19%

Market Share

Based on 75,649,572 SSDs tested

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Market Share Market Share (trailing 30 days)	0.03 %	Insanely higher market share. +∞%	0 %
Value Value For Money	4.5 %		9.8 %	Hugely better value. +118%
User Rating UBM User Rating	52 %		53 %	+2%
Price Price (score)	$251		$110	Much cheaper. +56%


Age Newest	138 Months		116 Months	More recent. +16%
DQ Read Peak 4K-64Thread Read Speed	369 MB/s	Faster peak deep queue read. +27%	291 MB/s
DQ Write Peak 4K-64Thread Write Speed	219 MB/s		288 MB/s	Much faster peak deep queue write. +32%
AS-SSD Total AS-SSD Total Score	1,022 Pts	+4%	987 Pts
DQ Mixed Peak 4K-64Thread Mixed IO Speed	59.3 MB/s		193 MB/s	Hugely faster peak deep queue mixed IO. +225%
ADQ Read Avg. 4K-64Thread Read Speed	318 MB/s	Faster deep queue read. +25%	255 MB/s
ADQ Write Avg. 4K-64Thread Write Speed	161 MB/s		246 MB/s	Much faster deep queue write. +53%
ADQ Mixed Avg. 4K-64Thread Mixed IO Speed	54.9 MB/s		161 MB/s	Hugely faster deep queue mixed IO. +193%


Capacity Capacity			250GB			256GB

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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The 256GB Transcend SSD370 sports a Silicon Motion (SM2246EN) controller coupled with Micron 20nm synchronous MLC NAND. With peak sequential read/write speeds of 520/290 MBps and peak 4k read/write speeds of 29/116 the SSD370 has an effective speed which is amongst the bottom 25% of ~250GB drives. The effective speed is weighed down by a relatively weak sequential write speed of just 290 MBps. The performance highlight for the SSD370 is its ability to deal with mixed 4k IO which is arguably one of the best real world indicators. At current prices the SSD370 can't compete as there are both cheaper and faster alternatives on the market but prices are almost certain to drop at which time the SSD370 will fare far better in terms of value. ^{[Oct '14 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]

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CPU	GPU	SSD
Intel Core i5-13600K $279	Nvidia RTX 4060 $300	Crucial MX500 250GB $40
Intel Core i5-12400F $134	Nvidia RTX 4060-Ti $385	Samsung 850 Evo 120GB $80
Intel Core i5-12600K $184	Nvidia RTX 4070 $409	Samsung 860 Evo 250GB $52

HDD	RAM	USB
Seagate Barracuda 1TB (2016) $39	Corsair Vengeance LPX DDR4 3200 C16 2x8GB $40	SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $35	Corsair Vengeance LPX DDR4 3000 C15 2x8GB $43	SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $51	G.SKILL Trident Z DDR4 3200 C14 4x16GB $351	SanDisk Ultra Fit 32GB $16

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