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SamsungMZ-77E250B
PlextorPX-AG512M6e
▲ 57223 ▼

Controller: Samsung MKX. Memory: Samsung 128 layer TLC V-NAND. Release date: Q1 2021.

VS
▲ 500 ▼

Release date ≈ Q3 2014.

Effective Speed 
+18%
Real World Speed
Performance profile from 14,232 user samples
Benchmark your SSD here
14,082 User Benchmarks
Best Bench: 128% 0GB free
Worst Bench: 67% 59GB free (System drive)
Poor: 67% Great: 128%
SPEED RANK: 259th / 1080
150 User Benchmarks
Best Bench: 142% 212GB free (System drive)
Worst Bench: 80% 59GB free (System drive)
Poor: 80% Great: 142%
SPEED RANK: 199th / 1080
Effective Speed
Effective SSD Speed 		101 % 120 % Faster effective speed.
+18%
Average Score 
+23%
Read
Avg. Sequential Read Speed 		461 MB/s 770 MB/s Much faster read speed.
+67%
Write
Avg. Sequential Write Speed 		395 MB/s 555 MB/s Much faster write speed.
+41%
4K Read
Avg. 4K Random Read Speed 		36.4 MB/s 41 MB/s Faster random read.
+13%
4K Write
Avg. 4K Random Write Speed 		81.9 MB/s Faster random write.
+14% 		71.9 MB/s
Mixed
Avg. Sequential Mixed IO Speed 		365 MB/s 485 MB/s Much faster mixed IO speed.
+33%
4K Mixed
Avg. 4K Random Mixed IO Speed 		45.9 MB/s Much faster random mixed IO.
+41% 		32.6 MB/s
SusWrite
Avg. Sustained Write Speed 		322 MB/s 535 MB/s Much faster sustained write speed.
+66%
Peak Score 
+48%
Read
Peak Sequential Read Speed 		514 MB/s 1,368 MB/s Hugely faster peak read speed.
+166%
Write
Peak Sequential Write Speed 		486 MB/s 630 MB/s Faster peak write speed.
+30%
4K Read
Peak 4K Random Read Speed 		49.1 MB/s 93.1 MB/s Hugely faster peak random read.
+90%
4K Write
Peak 4K Random Write Speed 		123 MB/s Slightly faster peak random write.
+10% 		112 MB/s
Mixed
Peak Sequential Mixed IO Speed 		457 MB/s 650 MB/s Much faster peak mixed IO speed.
+42%
4K Mixed
Peak 4K Random Mixed IO Speed 		66.1 MB/s Much faster peak random mixed IO.
+42% 		46.7 MB/s
SusWrite
Peak Sequential Sustained Write 60s Average 		396 MB/s 624 MB/s Much faster peak sustained write speed.
+58%
Value & Sentiment 
+∞%
Market Share
Based on 77,545,113 SSDs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.09 % Insanely higher market share.
+∞% 		0 %
Value
Value For Money 		19.9 % 38.9 % Hugely better value.
+96%
User Rating
UBM User Rating 		57 % More popular.
+14% 		50 %
Price
Price (score) 		$57 +4% $60
Nice To Haves 
+16%
Age
Newest 		45 Months Much more recent.
+63% 		121+ Months
DQ Read
Peak 4K-64Thread Read Speed 		389 MB/s 423 MB/s Slightly faster peak deep queue read.
+9%
DQ Write
Peak 4K-64Thread Write Speed 		362 MB/s 428 MB/s Faster peak deep queue write.
+18%
AS-SSD Total
AS-SSD Total Score 		1,291 Pts 1,592 Pts Stronger server IO.
+23%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed 		372 MB/s Faster peak deep queue mixed IO.
+24% 		301 MB/s
ADQ Read
Avg. 4K-64Thread Read Speed 		349 MB/s Faster deep queue read.
+18% 		297 MB/s
ADQ Write
Avg. 4K-64Thread Write Speed 		299 MB/s Slightly faster deep queue write.
+8% 		276 MB/s
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed 		280 MB/s Much faster deep queue mixed IO.
+67% 		168 MB/s
Specifications 
Capacity
Capacity 		250GB 512GB
User Builds 
14,082
150
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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.
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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?
What’s the difference between NAND and V-NAND?
What is sequential write speed?
What is sequential read speed?
What is incompressible data?
What is queue depth?
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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We don't pay youtubers, so they don't praise us. Moreover, our data obstructs youtubers who promote overpriced or inferior products.
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The Best
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Intel Core i5-12400F $111Nvidia RTX 4070 $500Crucial T700 M.2 4TB $370
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