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KingstonSA400S37/480G
CrucialCT250MX500SSD1
▲ 51253 ▼

Controller: Phison PS3111-S11. Flash Memory: Toshiba 15nm TLC. Release date ≈ Q1 2017.

VS
▲ 56654 ▼

Controller: Silicon Motion SM2258. Flash Memory: Micron 3D TLC. Release date: Q4 2017.

Effective Speed 
+36%
Real World Speed
Performance profile from 314,664 user samples
Benchmark your SSD here
237,487 User Benchmarks
Best Bench: 102% 343GB free (System drive)
Worst Bench: 39% 105GB free (System drive)
Poor: 39% Great: 102%
SPEED RANK: 597th / 1080
77,177 User Benchmarks
Best Bench: 123% 74GB free
Worst Bench: 73% 64GB free (System drive)
Poor: 73% Great: 123%
SPEED RANK: 260th / 1080
Effective Speed
Effective SSD Speed 		74.3 % 101 % Much faster effective speed.
+36%
Average Score 
+34%
Read
Avg. Sequential Read Speed 		399 MB/s 451 MB/s Faster read speed.
+13%
Write
Avg. Sequential Write Speed 		302 MB/s 394 MB/s Much faster write speed.
+30%
4K Read
Avg. 4K Random Read Speed 		26.8 MB/s 33.7 MB/s Faster random read.
+26%
4K Write
Avg. 4K Random Write Speed 		64.1 MB/s 83.4 MB/s Much faster random write.
+30%
Mixed
Avg. Sequential Mixed IO Speed 		287 MB/s 386 MB/s Much faster mixed IO speed.
+34%
4K Mixed
Avg. 4K Random Mixed IO Speed 		26.9 MB/s 45.4 MB/s Much faster random mixed IO.
+69%
SusWrite
Avg. Sustained Write Speed 		266 MB/s 352 MB/s Much faster sustained write speed.
+32%
Peak Score 
+11%
Read
Peak Sequential Read Speed 		503 MB/s 514 MB/s +2%
Write
Peak Sequential Write Speed 		451 MB/s 466 MB/s +3%
4K Read
Peak 4K Random Read Speed 		36 MB/s 42.6 MB/s Faster peak random read.
+18%
4K Write
Peak 4K Random Write Speed 		109 MB/s 116 MB/s Slightly faster peak random write.
+6%
Mixed
Peak Sequential Mixed IO Speed 		410 MB/s 450 MB/s Slightly faster peak mixed IO speed.
+10%
4K Mixed
Peak 4K Random Mixed IO Speed 		41.8 MB/s 58.3 MB/s Much faster peak random mixed IO.
+39%
SusWrite
Peak Sequential Sustained Write 60s Average 		460 MB/s +0% 458 MB/s
Value & Sentiment 
+378%
Market Share
Based on 77,530,474 SSDs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.63 % Insanely higher market share.
+1,475% 		0.04 %
Value
Value For Money 		34.4 % Much better value.
+32% 		26 %
User Rating
UBM User Rating 		51 % 56 % Slightly more popular.
+10%
Price
Price (score) 		$35 Cheaper.
+13% 		$40
Nice To Haves 
+37%
Age
Newest 		92+ Months 82 Months More recent.
+11%
DQ Read
Peak 4K-64Thread Read Speed 		282 MB/s 384 MB/s Much faster peak deep queue read.
+36%
DQ Write
Peak 4K-64Thread Write Speed 		355 MB/s 359 MB/s +1%
AS-SSD Total
AS-SSD Total Score 		1,077 Pts 1,258 Pts Stronger server IO.
+17%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed 		216 MB/s 278 MB/s Faster peak deep queue mixed IO.
+29%
ADQ Read
Avg. 4K-64Thread Read Speed 		180 MB/s 329 MB/s Hugely faster deep queue read.
+83%
ADQ Write
Avg. 4K-64Thread Write Speed 		234 MB/s 294 MB/s Faster deep queue write.
+26%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed 		113 MB/s 219 MB/s Hugely faster deep queue mixed IO.
+94%
Specifications 
Capacity
Capacity 		480GB 250GB
Conclusion 
Average Bench 74.3%
Average Bench 101%

needs DRAM as booting causes stutters on this one  [Dec '19 ExecutableFiles]

MORE DETAILS

The MX500 is Crucial’s current flagship consumer SATA SSD featuring their latest second generation 64-layer 3D TLC NAND. It’s available in 250 GB, 500 GB, 1 TB and 2 TB capacities in a 2.5-inch form factor. All but the 2 TB version will also be available in M.2 (2280) form in the future. The MX500 features a Silicon Motion SM2258 controller which is a change from the Marvell 88SS1074 controller featured in the MX300 (it’s nearly two year old predecessor). Performance is around 30% better than on the MX300 which currently retails at the same price. The MX500 has an SLC cache which increases with drive capacity. Consequently, the larger capacities are better able to sustain high sequential write speeds. The 250 GB version has 250MB of SLC cache, the 500 GB has 512 MB, the 1 TB has 1 GB and the 2 TB has 2 GB. Extended sustained write performance tests show that even though speed does drop off after the cache has been exhausted, it is still maintained at very respectable levels. The MX500’s five year warranty is in line with Samsung’s 850 Evo and exceeds it in terms of endurance (just 75 TBW for the 250 GB 850 Evo versus 100 TBW for the 250 GB MX500). It doesn’t quite match up to the Samsung’s 850 Evo’s performance (effective speed 8% slower), however at current prices it is about 20% cheaper, and on balance offers better value for money. [Mar '18 SSDrivePro]

MORE DETAILS

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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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 Frequently Asked Questions

Storage Devices FAQ
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Solid State Drives
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The Best
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Intel Core i5-12600K $159Nvidia RTX 4060 $280WD Black SN850X M.2 2TB $135
Intel Core i5-13600K $210Nvidia RTX 4060-Ti $389WD Black SN850X M.2 1TB $84
Intel Core i5-12400F $111Nvidia RTX 4070 $500Crucial T700 M.2 4TB $370
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