UserBenchmark: Crucial RealSSD C300 vs Samsung 840 Pro

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SamsungMZ-7PD256BW

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CrucialCTFDDAC256MAG

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Real World Speed

Performance profile from 73,904 user samples

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73,119 User Benchmarks

Best Bench: 116% 238GB free
Worst Bench: 68% 11GB free (System drive)

Poor: 68% Great: 116%

SPEED RANK: 279^th / 1072

785 User Benchmarks

Best Bench: 67% 205GB free
Worst Bench: 39% 200GB free (System drive)

Poor: 39% Great: 67%

SPEED RANK: 834^th / 1072


Effective Speed Effective SSD Speed		95 %	Much faster effective speed. +67%		56.8 %


Read Avg. Sequential Read Speed	459 MB/s	Much faster read speed. +45%	316 MB/s
Write Avg. Sequential Write Speed	367 MB/s	Hugely faster write speed. +84%	200 MB/s
4K Read Avg. 4K Random Read Speed	31 MB/s	Faster random read. +16%	26.7 MB/s
4K Write Avg. 4K Random Write Speed	85.6 MB/s	Much faster random write. +38%	62.1 MB/s
Mixed Avg. Sequential Mixed IO Speed	303 MB/s	Much faster mixed IO speed. +35%	225 MB/s
4K Mixed Avg. 4K Random Mixed IO Speed	39.5 MB/s	Hugely faster random mixed IO. +221%	12.3 MB/s
SusWrite Avg. Sustained Write Speed	312 MB/s	Hugely faster sustained write speed. +82%	171 MB/s


Read Peak Sequential Read Speed	510 MB/s	Much faster peak read speed. +53%	334 MB/s
Write Peak Sequential Write Speed	480 MB/s	Hugely faster peak write speed. +116%	222 MB/s
4K Read Peak 4K Random Read Speed	36.1 MB/s	Faster peak random read. +10%	32.8 MB/s
4K Write Peak 4K Random Write Speed	114 MB/s	Faster peak random write. +19%	95.9 MB/s
Mixed Peak Sequential Mixed IO Speed	368 MB/s	Much faster peak mixed IO speed. +51%	244 MB/s
4K Mixed Peak 4K Random Mixed IO Speed	47.6 MB/s	Hugely faster peak random mixed IO. +228%	14.5 MB/s
SusWrite Peak Sequential Sustained Write 60s Average	477 MB/s	Hugely faster peak sustained write speed. +121%	216 MB/s

Market Share

Based on 75,655,775 SSDs tested

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Market Share Market Share (trailing 30 days)	0.05 %	Insanely higher market share. +∞%	0 %
Value Value For Money	7.72 %	Much better value. +66%	4.66 %
User Rating UBM User Rating	54 %	+4%	52 %
Price Price (score)	$190		$188	+1%


Age Newest	138 Months	More recent. +19%	170 Months
DQ Read Peak 4K-64Thread Read Speed	385 MB/s	Much faster peak deep queue read. +68%	229 MB/s
DQ Write Peak 4K-64Thread Write Speed	334 MB/s	Much faster peak deep queue write. +76%	190 MB/s
AS-SSD Total AS-SSD Total Score	1,221 Pts	Much stronger server IO. +60%	762 Pts
DQ Mixed Peak 4K-64Thread Mixed IO Speed	176 MB/s	Hugely faster peak deep queue mixed IO. +82%	96.9 MB/s
ADQ Read Avg. 4K-64Thread Read Speed	346 MB/s	Much faster deep queue read. +60%	216 MB/s
ADQ Write Avg. 4K-64Thread Write Speed	262 MB/s	Much faster deep queue write. +53%	171 MB/s
ADQ Mixed Avg. 4K-64Thread Mixed IO Speed	147 MB/s	Hugely faster deep queue mixed IO. +81%	81 MB/s


Capacity Capacity			256GB			256GB

The 840 Pro is stunning. Samsung have created a completely in-house package including both the controller and their own new 21nm toggle mode NAND. On release (Oct '12) this was the fastest performing deep queue depth consumer grade SSD available. Fast forward six months (Apr '13) and the 840 Pro still holds both the random read/write deep queue depth speed records of 384 MB/s and 326 MB/s, impressive considering how fast the SSD space tends to move. There are no obvious weaknesses, in-fact the 840 pro takes first place in nearly all of the speed categories and is only seriously rivalled by one drive, the OCZ Vector. To conclude, in terms of both outright performance, particularly server orientated, and value for money the 256GB and 128GB 840 Pros are amongst the top handful of drives currently available. ^{[Jun '13 SSDrivePro]}

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Before looking at the benchmarks for this drive it's worth noting that it is nearly three years old, a lifetime in SSD's. The Crucial C300 demonstrated a transfer speed of 309.1 MB/s on the real world speed test. The AS-SSD total scores was comparably poor coming in at 640 points. By today's standards this drive is terrible but it is included in the group test simply as a reference because it was once one of the best solid state drives available. ^{[Apr '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]

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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 $46

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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