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SamsungMZ-75E250B
CrucialCT250MX500SSD1
▲ 5640,704 ▼

Controller: Samsung Dual Core MGX. Memory: Samsung 40nm TLC V-NAND. Release date: Q4 2014.

VS
▲ 56654 ▼

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

Effective Speed 
+2%
Real World Speed
Performance profile from 1,028,768 user samples
Benchmark your SSD here
951,591 User Benchmarks
Best Bench: 124% 140GB free
Worst Bench: 72% 233GB free
Poor: 72% Great: 124%
SPEED RANK: 251st / 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 		103 % +2% 101 %
Average Score 
+2%
Read
Avg. Sequential Read Speed 		466 MB/s +3% 451 MB/s
Write
Avg. Sequential Write Speed 		434 MB/s Faster write speed.
+10% 		394 MB/s
4K Read
Avg. 4K Random Read Speed 		39.4 MB/s Faster random read.
+17% 		33.7 MB/s
4K Write
Avg. 4K Random Write Speed 		94.6 MB/s Faster random write.
+13% 		83.4 MB/s
Mixed
Avg. Sequential Mixed IO Speed 		370 MB/s 386 MB/s +4%
4K Mixed
Avg. 4K Random Mixed IO Speed 		52.2 MB/s Faster random mixed IO.
+15% 		45.4 MB/s
SusWrite
Avg. Sustained Write Speed 		247 MB/s 352 MB/s Much faster sustained write speed.
+43%
Peak Score 
+1%
Read
Peak Sequential Read Speed 		507 MB/s 514 MB/s +1%
Write
Peak Sequential Write Speed 		492 MB/s Slightly faster peak write speed.
+6% 		466 MB/s
4K Read
Peak 4K Random Read Speed 		47.6 MB/s Faster peak random read.
+12% 		42.6 MB/s
4K Write
Peak 4K Random Write Speed 		129 MB/s Faster peak random write.
+11% 		116 MB/s
Mixed
Peak Sequential Mixed IO Speed 		416 MB/s 450 MB/s Slightly faster peak mixed IO speed.
+8%
4K Mixed
Peak 4K Random Mixed IO Speed 		64.6 MB/s Faster peak random mixed IO.
+11% 		58.3 MB/s
SusWrite
Peak Sequential Sustained Write 60s Average 		328 MB/s 458 MB/s Much faster peak sustained write speed.
+40%
Value & Sentiment 
+69%
Market Share
Based on 77,603,586 SSDs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.69 % Hugely higher market share.
+431% 		0.13 %
Value
Value For Money 		13.4 % 26 % Hugely better value.
+94%
User Rating
UBM User Rating 		56 % 56 %
Price
Price (score) 		$100 $40 Much cheaper.
+60%
Nice To Haves 
+8%
Age
Newest 		119 Months 83 Months Much more recent.
+30%
DQ Read
Peak 4K-64Thread Read Speed 		386 MB/s +1% 384 MB/s
DQ Write
Peak 4K-64Thread Write Speed 		362 MB/s +1% 359 MB/s
AS-SSD Total
AS-SSD Total Score 		1,290 Pts +3% 1,258 Pts
DQ Mixed
Peak 4K-64Thread Mixed IO Speed 		370 MB/s Much faster peak deep queue mixed IO.
+33% 		278 MB/s
ADQ Read
Avg. 4K-64Thread Read Speed 		354 MB/s Slightly faster deep queue read.
+8% 		329 MB/s
ADQ Write
Avg. 4K-64Thread Write Speed 		308 MB/s +5% 294 MB/s
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed 		320 MB/s Much faster deep queue mixed IO.
+46% 		219 MB/s
Specifications 
Capacity
Capacity 		250GB 250GB
Conclusion 
Average Bench 103%
Average Bench 101%

The 250GB Samsung 850 Evo has a similar architecture to its hugely successful predecessor, the 840 Evo. Both drives are TLC based but the 850 uses 3D V-NAND as opposed to regular NAND. Both drives also feature a Turbowrite cache (TWC) which buffers up to 3GB of writes. The TWC enables high burst write speeds but when the cache exhausts write speeds drop to 300 MB/s. Comparing the 850 and 840 Evos shows that effective speed, has improved by 11% and the warranty has been extended from three to five years but prices are also up by 11%. The 850 Evo does put in superb benchmarks (second only to the 850 Pro) but these are only valid within the TWC. At current price levels the 850 Evo struggles to compete with the value leaders. [Dec '14 SSDrivePro]

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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