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SamsungMZ-7KE256BW
CrucialCT4000T705SSD(3|5)
▲ 5441,223 ▼

Controller: Samsung Triple Core MEX. Memory: Samsung 40nm MLC V-NAND. Release date: Q3 2014.

VS
▲ 60118 ▼

Release date: Q1 2024.

Effective Speed 
+632%
Real World Speed
Performance profile from 142,071 user samples
Benchmark your SSD here
141,929 User Benchmarks
Best Bench: 124% 238GB free
Worst Bench: 71% 71GB free (System drive)
Poor: 71% Great: 124%
SPEED RANK: 256th / 1080
142 User Benchmarks
Great bench: 981% 3TB free (System drive)
Poor bench: 463% 2TB free (System drive)
Poor: 463% Great: 981%
SPEED RANK: 2nd / 1080
Effective Speed
Effective SSD Speed 		102 % 746 % Hugely faster effective speed.
+632%
Average Score 
+800%
Read
Avg. Sequential Read Speed 		469 MB/s 6243 MB/s Insanely faster read speed.
+1,231%
Write
Avg. Sequential Write Speed 		396 MB/s 6298 MB/s Insanely faster write speed.
+1,490%
4K Read
Avg. 4K Random Read Speed 		33.9 MB/s 98.4 MB/s Hugely faster random read.
+190%
4K Write
Avg. 4K Random Write Speed 		89.6 MB/s 217 MB/s Hugely faster random write.
+142%
Mixed
Avg. Sequential Mixed IO Speed 		334 MB/s 3806 MB/s Insanely faster mixed IO speed.
+1,040%
4K Mixed
Avg. 4K Random Mixed IO Speed 		44.1 MB/s 119 MB/s Hugely faster random mixed IO.
+170%
SusWrite
Avg. Sustained Write Speed 		346 MB/s 4964 MB/s Insanely faster sustained write speed.
+1,335%
Peak Score 
+853%
Read
Peak Sequential Read Speed 		515 MB/s 7702 MB/s Insanely faster peak read speed.
+1,396%
Write
Peak Sequential Write Speed 		488 MB/s 8576 MB/s Insanely faster peak write speed.
+1,657%
4K Read
Peak 4K Random Read Speed 		43.6 MB/s 96 MB/s Hugely faster peak random read.
+120%
4K Write
Peak 4K Random Write Speed 		125 MB/s 358 MB/s Hugely faster peak random write.
+186%
Mixed
Peak Sequential Mixed IO Speed 		383 MB/s 4335 MB/s Insanely faster peak mixed IO speed.
+1,032%
4K Mixed
Peak 4K Random Mixed IO Speed 		56.7 MB/s 151 MB/s Hugely faster peak random mixed IO.
+166%
SusWrite
Peak Sequential Sustained Write 60s Average 		484 MB/s 7320 MB/s Insanely faster peak sustained write speed.
+1,412%
Value & Sentiment 
+378%
Market Share
Based on 77,468,255 SSDs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.07 % Hugely higher market share.
+250% 		0.02 %
Value
Value For Money 		12.3 % 236 % Insanely better value.
+1,826%
User Rating
UBM User Rating 		54 % 60 % More popular.
+11%
Price
Price (score) 		$112 Much cheaper.
+77% 		$484
Nice To Haves 
+394%
Age
Newest 		124 Months 7 Months Hugely more recent.
+94%
DQ Read
Peak 4K-64Thread Read Speed 		388 MB/s 2373 MB/s Hugely faster peak deep queue read.
+512%
DQ Write
Peak 4K-64Thread Write Speed 		361 MB/s 1836 MB/s Hugely faster peak deep queue write.
+409%
AS-SSD Total
AS-SSD Total Score 		1,280 Pts 8,002 Pts Hugely stronger server IO.
+525%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed 		356 MB/s 2086 MB/s Hugely faster peak deep queue mixed IO.
+486%
ADQ Read
Avg. 4K-64Thread Read Speed 		344 MB/s 1778 MB/s Hugely faster deep queue read.
+417%
ADQ Write
Avg. 4K-64Thread Write Speed 		282 MB/s 1163 MB/s Hugely faster deep queue write.
+312%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed 		295 MB/s 1471 MB/s Hugely faster deep queue mixed IO.
+399%
Specifications 
Capacity
Capacity 		256GB 4TB
Conclusion 
Average Bench 102%
Average Bench 746%

The 256GB Samsung 850 Pro is the fastest consumer SSD we have seen to date. Thanks to Samsung's new 3D V-NAND the 850 Pro has lower power consumption and better performance, albeit marginally, than both the 840 Evo and 840 Pro. Looking at the benchmark figures for the 840 and 850 Pros shows that the effective performance improvement is 10% whereas the 850 Pro beats the 840 Evo by 16%. These drives effectively saturate SATA 3.0 making it difficult to distinguish between them in day-to-day use. At current prices the 850 Pro is prohibitively expensive, prices need to drop by 15% before it approaches the 840 Pro from a value perspective. Samsung may release a value orientated 850 Evo soon, but for now "most" users are better off with the 840 Pro. [Oct '14 SSDrivePro]

MORE DETAILS

The Crucial T705 is a slightly improved version of the T700. Both are among the first PCIe 5.0 SSDs, offering peak data rates double those of PCIe 4.0. The T705 can reach staggering burst sequential read and write speeds of 15 and 12 GB/s. However, out of cache performance still lies within PCIe 4.0 limits so the T705 doesn’t have a PCIe 5.0 advantage during sustained workloads. The T705 offers around a 5% effective speed advantage over the T700 which is not justifiable at current prices (1TB = $180, 2TB = $300, 4TB = $500). While it may appeal to users looking for almost unparalleled burst performance, most users won’t notice much improvement compared to the WD Black SN850X because of other bottlenecks in a typical system. [Jun '24 SSDrivePro]

MORE DETAILS

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Solid State Drive Rankings (Price vs Performance) November 2024 SSD Rankings

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]

Group Test Results

  • Best user rated - User sentiment trumps benchmarks for this comparison.
  • Best value for money - Value for money is based on real world performance.
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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?
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What is sequential write speed?
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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?
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Brands make boatloads on flagships like the 4090 and 14900KS. We help users get similar real-world performance for less money.
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The Best
CPUGPUSSD
Intel Core i5-12600K $169Nvidia RTX 4060 $296WD Black SN850X M.2 2TB $135
Intel Core i5-12400F $111Nvidia RTX 4060-Ti $345WD Black SN850X M.2 1TB $80
Intel Core i5-13600K $225Nvidia RTX 4070 $500Crucial T700 M.2 4TB $350
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