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OCZRADEON-R7SSD-480G
SamsungMZ-7PD128BW
▲ 51166 ▼

Controller: Indilinx Barefoot 3 IDX500M00. Flash: Toshiba A19nm MLC. Release date: Q3 2014.

VS
▲ 542,764 ▼

Controller: Samsung 3-core MDX. Flash Memory: Samsung 21nm Toggle Mode MLC. Release date: Q4 2012.

Effective Speed 
+1%
Real World Speed
Performance profile from 35,549 user samples
Benchmark your SSD here
707 User Benchmarks
Best Bench: 108% 82GB free
Worst Bench: 67% 446GB free
Poor: 67% Great: 108%
SPEED RANK: 332nd / 1080
34,842 User Benchmarks
Best Bench: 110% 62GB free
Worst Bench: 62% 119GB free
Poor: 62% Great: 110%
SPEED RANK: 344th / 1080
Effective Speed
Effective SSD Speed 		90.3 % +1% 89.5 %
Average Score 
+3%
Read
Avg. Sequential Read Speed 		412 MB/s 444 MB/s Slightly faster read speed.
+8%
Write
Avg. Sequential Write Speed 		417 MB/s Faster write speed.
+24% 		336 MB/s
4K Read
Avg. 4K Random Read Speed 		24.5 MB/s 30.5 MB/s Faster random read.
+24%
4K Write
Avg. 4K Random Write Speed 		81.9 MB/s +0% 81.6 MB/s
Mixed
Avg. Sequential Mixed IO Speed 		293 MB/s Slightly faster mixed IO speed.
+9% 		268 MB/s
4K Mixed
Avg. 4K Random Mixed IO Speed 		32.4 MB/s 35.9 MB/s Faster random mixed IO.
+11%
SusWrite
Avg. Sustained Write Speed 		379 MB/s Much faster sustained write speed.
+33% 		286 MB/s
Peak Score 
+2%
Read
Peak Sequential Read Speed 		468 MB/s 497 MB/s Slightly faster peak read speed.
+6%
Write
Peak Sequential Write Speed 		480 MB/s Slightly faster peak write speed.
+8% 		445 MB/s
4K Read
Peak 4K Random Read Speed 		29.3 MB/s 36.3 MB/s Faster peak random read.
+24%
4K Write
Peak 4K Random Write Speed 		134 MB/s Faster peak random write.
+19% 		113 MB/s
Mixed
Peak Sequential Mixed IO Speed 		330 MB/s 331 MB/s +0%
4K Mixed
Peak 4K Random Mixed IO Speed 		38.9 MB/s 44.1 MB/s Faster peak random mixed IO.
+13%
SusWrite
Peak Sequential Sustained Write 60s Average 		447 MB/s +2% 440 MB/s
Value & Sentiment 
+15%
Market Share
Based on 77,608,729 SSDs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.01 % 0.04 % Hugely higher market share.
+300%
Value
Value For Money 		21.8 % Hugely better value.
+321% 		5.17 %
User Rating
UBM User Rating 		51 % 54 % Slightly more popular.
+6%
Price
Price (score) 		$84 Much cheaper.
+44% 		$150
Nice To Haves 
+22%
Age
Newest 		123 Months More recent.
+15% 		145 Months
DQ Read
Peak 4K-64Thread Read Speed 		380 MB/s +1% 376 MB/s
DQ Write
Peak 4K-64Thread Write Speed 		368 MB/s Faster peak deep queue write.
+12% 		330 MB/s
AS-SSD Total
AS-SSD Total Score 		1,249 Pts +4% 1,196 Pts
DQ Mixed
Peak 4K-64Thread Mixed IO Speed 		249 MB/s Much faster peak deep queue mixed IO.
+61% 		155 MB/s
ADQ Read
Avg. 4K-64Thread Read Speed 		328 MB/s 332 MB/s +1%
ADQ Write
Avg. 4K-64Thread Write Speed 		267 MB/s Slightly faster deep queue write.
+9% 		245 MB/s
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed 		217 MB/s Much faster deep queue mixed IO.
+72% 		126 MB/s
Specifications 
Capacity
Capacity 		480GB 128GB
Conclusion 
Average Bench 90.3%
Average Bench 89.5%

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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34,842
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Welcome to our 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
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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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Solid State Drives
What is the SSD value for money rating?
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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The Best
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Intel Core i5-13600K $210Nvidia RTX 4060 $285WD Black SN850X M.2 2TB $125
Intel Core i5-12600K $155Nvidia RTX 4060-Ti $389WD Black SN850X M.2 1TB $80
Intel Core i5-12400F $111Nvidia RTX 4070 $500Crucial T700 M.2 4TB $330
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