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CrucialCT250MX500SSD1
SanDiskSDSSDXPS-240G
▲ 56654 ▼

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

VS
▲ 544,013 ▼

Controller: Marvell 88SS9187-BLD2. Flash Memory: SanDisk 19nm eX2 ABL MLC. Release date: Q2 2014.

Effective Speed 
+10%
Real World Speed
Performance profile from 88,039 user samples
Benchmark your SSD here
77,177 User Benchmarks
Best Bench: 123% 74GB free
Worst Bench: 73% 64GB free (System drive)
Poor: 73% Great: 123%
SPEED RANK: 260th / 1080
10,862 User Benchmarks
Best Bench: 114% 83GB free (System drive)
Worst Bench: 65% 20GB free (System drive)
Poor: 65% Great: 114%
SPEED RANK: 316th / 1080
Effective Speed
Effective SSD Speed 		101 % Faster effective speed.
+10% 		91.7 %
Average Score 
+15%
Read
Avg. Sequential Read Speed 		451 MB/s 455 MB/s +1%
Write
Avg. Sequential Write Speed 		394 MB/s 406 MB/s +3%
4K Read
Avg. 4K Random Read Speed 		33.7 MB/s Faster random read.
+17% 		28.9 MB/s
4K Write
Avg. 4K Random Write Speed 		83.4 MB/s Slightly faster random write.
+9% 		76.5 MB/s
Mixed
Avg. Sequential Mixed IO Speed 		386 MB/s Much faster mixed IO speed.
+50% 		258 MB/s
4K Mixed
Avg. 4K Random Mixed IO Speed 		45.4 MB/s Much faster random mixed IO.
+36% 		33.4 MB/s
SusWrite
Avg. Sustained Write Speed 		352 MB/s +1% 350 MB/s
Peak Score 
+14%
Read
Peak Sequential Read Speed 		514 MB/s +1% 509 MB/s
Write
Peak Sequential Write Speed 		466 MB/s 479 MB/s +3%
4K Read
Peak 4K Random Read Speed 		42.6 MB/s Faster peak random read.
+20% 		35.6 MB/s
4K Write
Peak 4K Random Write Speed 		116 MB/s +3% 113 MB/s
Mixed
Peak Sequential Mixed IO Speed 		450 MB/s Much faster peak mixed IO speed.
+42% 		316 MB/s
4K Mixed
Peak 4K Random Mixed IO Speed 		58.3 MB/s Much faster peak random mixed IO.
+37% 		42.4 MB/s
SusWrite
Peak Sequential Sustained Write 60s Average 		458 MB/s 480 MB/s +5%
Value & Sentiment 
+∞%
Market Share
Based on 76,510,530 SSDs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.13 % Insanely higher market share.
+∞% 		0 %
Value
Value For Money 		26 % Hugely better value.
+89% 		13.7 %
User Rating
UBM User Rating 		56 % +4% 54 %
Price
Price (score) 		$40 Much cheaper.
+49% 		$79
Nice To Haves 
+22%
Age
Newest 		79 Months Much more recent.
+35% 		121 Months
DQ Read
Peak 4K-64Thread Read Speed 		384 MB/s +2% 376 MB/s
DQ Write
Peak 4K-64Thread Write Speed 		359 MB/s +5% 343 MB/s
AS-SSD Total
AS-SSD Total Score 		1,258 Pts +4% 1,214 Pts
DQ Mixed
Peak 4K-64Thread Mixed IO Speed 		278 MB/s Much faster peak deep queue mixed IO.
+70% 		164 MB/s
ADQ Read
Avg. 4K-64Thread Read Speed 		329 MB/s +1% 325 MB/s
ADQ Write
Avg. 4K-64Thread Write Speed 		294 MB/s Faster deep queue write.
+10% 		267 MB/s
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed 		219 MB/s Much faster deep queue mixed IO.
+48% 		148 MB/s
Specifications 
Capacity
Capacity 		250GB 240GB
Conclusion 
Average Bench 101%
Average Bench 91.7%
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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

The 240GB Sandisk Extreme Pro uses the same controller and NAND as its 13 months younger predecessor, the Extreme II. Comparing the Extreme II and Extreme Pro shows that average performance has increased by 10% but peak performance remains broadly unchanged. The Pro features an improved nCache which uses an SLC buffer to cache writes prior to writing them to the slower MLC NAND. In order to benefit from this improved caching, huge amounts of data need to be written for extended periods, an unlikely consumer scenario. Comparing core performance between the Samsung 840 Evo and Extreme Pro shows that the Extreme Pro averages around 12% faster than the Evo. The Extreme Pro also has a 10 year warranty but I wonder if SATA 3 will even be around at that time. Although the Extreme Pro has a superb performance profile it's not a game changer. [Jun '14 SSDrivePro]

MORE DETAILS

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