UserBenchmark: OCZ Agility 4 vs Samsung 840 Pro

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OCZAGT4-25SAT3-256G

BUY • $90

SamsungMZ-7PD128BW

BUY • $150

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Real World Speed

Performance profile from 36,258 user samples

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1,416 User Benchmarks

Best Bench: 87% 238GB free
Worst Bench: 57% 185GB free (System drive)

Poor: 57% Great: 87%

SPEED RANK: 625^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		72.3 %			89.5 %	Faster effective speed. +24%


Read Avg. Sequential Read Speed	276 MB/s		444 MB/s	Much faster read speed. +61%
Write Avg. Sequential Write Speed	304 MB/s		336 MB/s	Faster write speed. +11%
4K Read Avg. 4K Random Read Speed	18.4 MB/s		30.5 MB/s	Much faster random read. +66%
4K Write Avg. 4K Random Write Speed	94.5 MB/s	Faster random write. +16%	81.6 MB/s
Mixed Avg. Sequential Mixed IO Speed	193 MB/s		268 MB/s	Much faster mixed IO speed. +39%
4K Mixed Avg. 4K Random Mixed IO Speed	27 MB/s		35.9 MB/s	Much faster random mixed IO. +33%
SusWrite Avg. Sustained Write Speed	275 MB/s		286 MB/s	+4%


Read Peak Sequential Read Speed	336 MB/s		497 MB/s	Much faster peak read speed. +48%
Write Peak Sequential Write Speed	391 MB/s		445 MB/s	Faster peak write speed. +14%
4K Read Peak 4K Random Read Speed	21.3 MB/s		36.3 MB/s	Much faster peak random read. +70%
4K Write Peak 4K Random Write Speed	131 MB/s	Faster peak random write. +16%	113 MB/s
Mixed Peak Sequential Mixed IO Speed	236 MB/s		331 MB/s	Much faster peak mixed IO speed. +40%
4K Mixed Peak 4K Random Mixed IO Speed	31.8 MB/s		44.1 MB/s	Much faster peak random mixed IO. +39%
SusWrite Peak Sequential Sustained Write 60s Average	382 MB/s		440 MB/s	Faster peak sustained write speed. +15%

Market Share

Based on 75,742,123 SSDs tested

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Market Share Market Share (trailing 30 days)	0 %		0.02 %	Insanely higher market share. +∞%
Value Value For Money	10.3 %	Hugely better value. +99%	5.17 %
User Rating UBM User Rating	51 %		54 %	Slightly more popular. +6%
Price Price (score)	$90	Much cheaper. +40%	$150


Age Newest	143 Months		138 Months	+3%
DQ Read Peak 4K-64Thread Read Speed	255 MB/s		376 MB/s	Much faster peak deep queue read. +47%
DQ Write Peak 4K-64Thread Write Speed	316 MB/s		330 MB/s	+4%
AS-SSD Total AS-SSD Total Score	964 Pts		1,196 Pts	Stronger server IO. +24%
DQ Mixed Peak 4K-64Thread Mixed IO Speed	208 MB/s	Much faster peak deep queue mixed IO. +34%	155 MB/s
ADQ Read Avg. 4K-64Thread Read Speed	231 MB/s		332 MB/s	Much faster deep queue read. +44%
ADQ Write Avg. 4K-64Thread Write Speed	235 MB/s		245 MB/s	+4%
ADQ Mixed Avg. 4K-64Thread Mixed IO Speed	194 MB/s	Much faster deep queue mixed IO. +54%	126 MB/s


Capacity Capacity			256GB			128GB

The OCZ Agility 4 is a relatively old SSD and has been included in the group test as a reference. In terms of overall speed the Agility 4 lags the current ten market leaders by an average of around 30%, considering that the Agility 4 is only 16 months old this highlights just how quickly the SSD market has evolved over the last two years. It's probably not worth upgrading for the sake of more speed unless you have a specific use case that demands it but if you are looking for a speed upgrade, you will gain up to around 50% by going for the Samsung 840 Pro or the OCZ Vector. ^{[Sep '13 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) 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 $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 $177	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) $51	G.SKILL Trident Z DDR4 3200 C14 4x16GB $351	SanDisk Ultra Fit 32GB $16

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