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SanDiskSD6SF1M-256G-1022
CrucialCT4000T700SSD(3|5)
▲ 501 ▼

Controller: Marvell 9175. Flash Memory: SanDisk 19nm Toggle Mode MLC. Release date ≈ Q2 2014.

VS
Effective Speed 
+909%
Real World Speed
Performance profile from 1,048 user samples
Benchmark your SSD here
304 User Benchmarks
Best Bench: 91% 238GB free
Worst Bench: 53% 15GB free (System drive)
Poor: 53% Great: 91%
SPEED RANK: 624th / 1080
744 User Benchmarks
Great bench: 994% 1.5TB free
Poor bench: 415% 2.5TB free (System drive)
Poor: 415% Great: 994%
SPEED RANK: 3rd / 1080
Effective Speed
Effective SSD Speed 		72.9 % 735 % Hugely faster effective speed.
+909%
Average Score 
+1,004%
Read
Avg. Sequential Read Speed 		411 MB/s 6,026 MB/s Insanely faster read speed.
+1,366%
Write
Avg. Sequential Write Speed 		329 MB/s 6,092 MB/s Insanely faster write speed.
+1,752%
4K Read
Avg. 4K Random Read Speed 		23.2 MB/s 94.5 MB/s Hugely faster random read.
+307%
4K Write
Avg. 4K Random Write Speed 		59.4 MB/s 235 MB/s Hugely faster random write.
+296%
Mixed
Avg. Sequential Mixed IO Speed 		242 MB/s 3,358 MB/s Insanely faster mixed IO speed.
+1,288%
4K Mixed
Avg. 4K Random Mixed IO Speed 		22 MB/s 123 MB/s Hugely faster random mixed IO.
+459%
SusWrite
Avg. Sustained Write Speed 		292 MB/s 4,851 MB/s Insanely faster sustained write speed.
+1,561%
Peak Score 
+985%
Read
Peak Sequential Read Speed 		466 MB/s 7,655 MB/s Insanely faster peak read speed.
+1,543%
Write
Peak Sequential Write Speed 		421 MB/s 8,214 MB/s Insanely faster peak write speed.
+1,851%
4K Read
Peak 4K Random Read Speed 		31.4 MB/s 94.6 MB/s Hugely faster peak random read.
+201%
4K Write
Peak 4K Random Write Speed 		97 MB/s 363 MB/s Hugely faster peak random write.
+274%
Mixed
Peak Sequential Mixed IO Speed 		375 MB/s 3,955 MB/s Hugely faster peak mixed IO speed.
+955%
4K Mixed
Peak 4K Random Mixed IO Speed 		33.4 MB/s 149 MB/s Hugely faster peak random mixed IO.
+346%
SusWrite
Peak Sequential Sustained Write 60s Average 		404 MB/s 7,376 MB/s Insanely faster peak sustained write speed.
+1,726%
Value & Sentiment 
+∞%
Market Share
Based on 77,612,491 SSDs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0 % 0.05 % Insanely higher market share.
+∞%
Value
Value For Money 		7.07 % 318 % Insanely better value.
+4,393%
User Rating
UBM User Rating 		50 % 73 % Much more popular.
+46%
Price
Price (score) 		$150 Much cheaper.
+53% 		$320
Nice To Haves 
+846%
Age
Newest 		125+ Months 17 Months Hugely more recent.
+86%
DQ Read
Peak 4K-64Thread Read Speed 		322 MB/s 2,321 MB/s Hugely faster peak deep queue read.
+621%
DQ Write
Peak 4K-64Thread Write Speed 		211 MB/s 1,901 MB/s Hugely faster peak deep queue write.
+801%
AS-SSD Total
AS-SSD Total Score 		964 Pts 7,932 Pts Hugely stronger server IO.
+723%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed 		125 MB/s 2,067 MB/s Insanely faster peak deep queue mixed IO.
+1,554%
ADQ Read
Avg. 4K-64Thread Read Speed 		237 MB/s 1,767 MB/s Hugely faster deep queue read.
+646%
ADQ Write
Avg. 4K-64Thread Write Speed 		178 MB/s 1,235 MB/s Hugely faster deep queue write.
+594%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed 		82.6 MB/s 1,522 MB/s Insanely faster deep queue mixed IO.
+1,743%
Specifications 
Capacity
Capacity 		256GB 4TB
Conclusion 
Average Bench 72.9%
Average Bench 735%

The Crucial T700 is one of the first PCIe 5.0 SSDs, offering peak data rates double those of PCIe 4.0. The T700 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 T700 doesn’t have a PCIe 5.0 advantage during sustained workloads. At current prices (1TB = $140, 2TB = $270, 4TB = $370) the T700 may be of interest to users looking for almost unparalleled burst performance, though most users won’t notice much improvement compared to the WD Black SN850X because of other bottlenecks in in a typical system. [Jun '24 SSDrivePro]

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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]

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 Frequently Asked Questions

Storage Devices FAQ
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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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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 i5-13600K $210Nvidia RTX 4060 $285WD Black SN850X M.2 2TB $125
Intel Core i5-12600K $154Nvidia RTX 4060-Ti $389WD Black SN850X M.2 1TB $80
Intel Core i5-12400F $111Nvidia RTX 4070 $500Crucial T700 M.2 4TB $320
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