SamsungMZ-77E250B
CrucialCT512M550SSD1

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

Controller: Marvell 88SS9189. Flash Memory: Micron Synchronous 20nm MLC. Release date ≤ Q2 2014.

Real World Speed
Performance profile from 19,765 user samples
14,082 User Benchmarks
Best Bench: 128% 0GB free
Worst Bench: 67% 59GB free (System drive)
Poor: 67% Great: 128%
SPEED RANK: 259th / 1080
5,683 User Benchmarks
Best Bench: 111% 167GB free
Worst Bench: 65% 6GB free (System drive)
Poor: 65% Great: 111%
SPEED RANK: 310th / 1080
Effective Speed
Effective SSD Speed
101 % Slightly faster effective speed.
+10%
92.5 %
Read
Avg. Sequential Read Speed
461 MB/s Slightly faster read speed.
+10%
421 MB/s
Write
Avg. Sequential Write Speed
395 MB/s 422 MB/s Slightly faster write speed.
+7%
4K Read
Avg. 4K Random Read Speed
36.4 MB/s Much faster random read.
+38%
26.3 MB/s
4K Write
Avg. 4K Random Write Speed
81.9 MB/s 86.6 MB/s Slightly faster random write.
+6%
Mixed
Avg. Sequential Mixed IO Speed
365 MB/s Faster mixed IO speed.
+24%
295 MB/s
4K Mixed
Avg. 4K Random Mixed IO Speed
45.9 MB/s Faster random mixed IO.
+24%
36.9 MB/s
SusWrite
Avg. Sustained Write Speed
322 MB/s 343 MB/s Slightly faster sustained write speed.
+7%
Read
Peak Sequential Read Speed
514 MB/s Faster peak read speed.
+11%
464 MB/s
Write
Peak Sequential Write Speed
486 MB/s +3% 470 MB/s
4K Read
Peak 4K Random Read Speed
49.1 MB/s Much faster peak random read.
+62%
30.3 MB/s
4K Write
Peak 4K Random Write Speed
123 MB/s +2% 120 MB/s
Mixed
Peak Sequential Mixed IO Speed
457 MB/s Much faster peak mixed IO speed.
+42%
322 MB/s
4K Mixed
Peak 4K Random Mixed IO Speed
66.1 MB/s Much faster peak random mixed IO.
+49%
44.4 MB/s
SusWrite
Peak Sequential Sustained Write 60s Average
396 MB/s 463 MB/s Faster peak sustained write speed.
+17%
Market Share
Based on 76,154,544 SSDs tested
Market Share
Market Share (trailing 30 days)
0.11 % Insanely higher market share.
+∞%
0 %
Value
Value For Money
22.7 % Hugely better value.
+143%
9.36 %
User Rating
UBM User Rating
57 % More popular.
+14%
50 %
Price
Price (score)
$48 Hugely cheaper.
+83%
$283
Age
Newest
40 Months Much more recent.
+67%
122+ Months
DQ Read
Peak 4K-64Thread Read Speed
389 MB/s +1% 384 MB/s
DQ Write
Peak 4K-64Thread Write Speed
362 MB/s 362 MB/s
AS-SSD Total
AS-SSD Total Score
1291 Pts +4% 1,236 Pts
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
372 MB/s Much faster peak deep queue mixed IO.
+60%
232 MB/s
ADQ Read
Avg. 4K-64Thread Read Speed
349 MB/s Slightly faster deep queue read.
+9%
320 MB/s
ADQ Write
Avg. 4K-64Thread Write Speed
299 MB/s +1% 295 MB/s
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
280 MB/s Much faster deep queue mixed IO.
+38%
203 MB/s
Capacity
Capacity
250GB 512GB
Solid State Drive Rankings (Price vs Performance) June 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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Group Test Results

  • Best user rated - User sentiment trumps benchmarks for this comparison.
  • Best value for money - Value for money is based on real world performance.
  • Fastest real world speed - Real World Speed measures performance for typical consumers.
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The Best
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Intel Core i5-13600K $260Nvidia RTX 4070 $549Crucial T700 M.2 4TB $369
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