UserBenchmark: Intel 535 Series vs Samsung 840 Pro

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IntelSSDSC2BW240H601

BUY • $200

SamsungMZ-7PD128BW

BUY • $150

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Real World Speed

Performance profile from 43,984 user samples

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9,142 User Benchmarks

Best Bench: 95% 223GB free
Worst Bench: 58% 136GB free

Poor: 58% Great: 95%

SPEED RANK: 495^th / 1072

34,842 User Benchmarks

Best Bench: 110% 62GB free
Worst Bench: 62% 119GB free

Poor: 62% Great: 110%

SPEED RANK: 336^th / 1072


Effective Speed Effective SSD Speed		79.2 %			89.5 %	Faster effective speed. +13%


Read Avg. Sequential Read Speed	385 MB/s		444 MB/s	Faster read speed. +15%
Write Avg. Sequential Write Speed	230 MB/s		336 MB/s	Much faster write speed. +46%
4K Read Avg. 4K Random Read Speed	29.9 MB/s		30.5 MB/s	+2%
4K Write Avg. 4K Random Write Speed	80 MB/s		81.6 MB/s	+2%
Mixed Avg. Sequential Mixed IO Speed	274 MB/s	+2%	268 MB/s
4K Mixed Avg. 4K Random Mixed IO Speed	37.8 MB/s	Slightly faster random mixed IO. +5%	35.9 MB/s
SusWrite Avg. Sustained Write Speed	180 MB/s		286 MB/s	Much faster sustained write speed. +59%


Read Peak Sequential Read Speed	454 MB/s		497 MB/s	Slightly faster peak read speed. +9%
Write Peak Sequential Write Speed	255 MB/s		445 MB/s	Much faster peak write speed. +75%
4K Read Peak 4K Random Read Speed	36.7 MB/s	+1%	36.3 MB/s
4K Write Peak 4K Random Write Speed	111 MB/s		113 MB/s	+2%
Mixed Peak Sequential Mixed IO Speed	301 MB/s		331 MB/s	Slightly faster peak mixed IO speed. +10%
4K Mixed Peak 4K Random Mixed IO Speed	47.3 MB/s	Slightly faster peak random mixed IO. +7%	44.1 MB/s
SusWrite Peak Sequential Sustained Write 60s Average	230 MB/s		440 MB/s	Hugely faster peak sustained write speed. +91%

Market Share

Based on 75,792,492 SSDs tested

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Market Share Market Share (trailing 30 days)	0 %		0.02 %	Insanely higher market share. +∞%
Value Value For Money	5.91 %	Better value. +14%	5.17 %
User Rating UBM User Rating	53 %		54 %	+2%
Price Price (score)	$200		$150	Cheaper. +25%


Age Newest	109 Months	More recent. +22%	139 Months
DQ Read Peak 4K-64Thread Read Speed	296 MB/s		376 MB/s	Faster peak deep queue read. +27%
DQ Write Peak 4K-64Thread Write Speed	245 MB/s		330 MB/s	Much faster peak deep queue write. +35%
AS-SSD Total AS-SSD Total Score	957 Pts		1,196 Pts	Stronger server IO. +25%
DQ Mixed Peak 4K-64Thread Mixed IO Speed	176 MB/s	Faster peak deep queue mixed IO. +14%	155 MB/s
ADQ Read Avg. 4K-64Thread Read Speed	273 MB/s		332 MB/s	Faster deep queue read. +22%
ADQ Write Avg. 4K-64Thread Write Speed	212 MB/s		245 MB/s	Faster deep queue write. +16%
ADQ Mixed Avg. 4K-64Thread Mixed IO Speed	158 MB/s	Faster deep queue mixed IO. +25%	126 MB/s


Capacity Capacity			240GB			128GB

The Intel 535 SSD was quietly released in April 2015, very few review samples were distributed and the release went largely unnoticed. The 535 sports the same basic specs as its predecessor, the 530. The 20nm NAND in the 530 has been replaced with marginally slower 16nm NAND and both drives use the same five year old SandForce 2281 controller. Comparing performance between 240GB 530 and 535 shows that the two drives share the same performance profile which is severely hampered by a particularly weak incompressible write speed, something the SandForce controller is notorious for. Overall the 240GB 535 scores an effective speed of 71.5% which puts it amongst the slowest handful of new SSDs on the market. There are other drives on the market that use newer technology and represent far value for money. ^{[Aug '15 SSDrivePro]}

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The 128GB 840 Pro is a rock solid performer. On release, nearly a year and a half ago, the Pro smashed several speed records. Today, with sequential read/write speeds of 519/438 MBps, the Pro is still one of the fastest SSDs available. One of the Pro's top competitors is Samsungs own, newer 840 Evo. Looking at a raw synthetic speed comparison of the 128GB Pro and Evo is a little misleading. On the face of it the Pro only has a marginal lead over the Evo. This due to the fact that the Evo can only maintain its burst write speed for transfers of up to 3GB, the size of its SLC cache. The Pro on the other hand can sustain higher throughputs indefinitely. The Pro also utilizes MLC which is rated for far more erase cycles than the TLC used in the Evo. Server IO is often continuous and would quickly exhaust the 3GB cache on the Evo but for typical consumer use the Evo will remain within the SLC cache most of the time. ^{[Feb '14 SSDrivePro]}

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Solid State Drive Rankings (Price vs Performance) May 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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Welcome to our PC speed test tool. UserBenchmark will test your PC and compare the results to other users with the same components. You can quickly size up your PC, identify hardware problems and explore the best value for money upgrades.

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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?

What’s the difference between NAND and V-NAND?

What is sequential write speed?

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What is 4K 64 thread write speed?

Can CPU power saving states (C1,C2,C3) impact SSD speed?

What is the effective SSD speed index?

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CPU	GPU	SSD
Intel Core i5-13600K $254	Nvidia RTX 4060 $300	Crucial MX500 250GB $39
Intel Core i5-12400F $133	Nvidia RTX 4060-Ti $385	Samsung 850 Evo 120GB $80
Intel Core i5-12600K $163	Nvidia RTX 4070 $539	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) $31	Corsair Vengeance LPX DDR4 3000 C15 2x8GB $37	SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $64	G.SKILL Trident Z DDR4 3200 C14 4x16GB $351	SanDisk Ultra Fit 32GB $16

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