SamsungMZ-77E250B
CrucialCT128M4SSD2
$116

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

 $116 

Controller: Marvell 88SS9174-BLD2. Flash Memory: Micron Synchronous 25nm MLC. Release date: Q2 2011.

Real World Speed
Performance profile from 48,598 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
34,516 User Benchmarks
Best Bench: 72% 34GB free
Worst Bench: 44% 119GB free
Poor: 44% Great: 72%
SPEED RANK: 811th / 1080
Effective Speed
Effective SSD Speed
101 % Much faster effective speed.
+70%
59.8 %
Read
Avg. Sequential Read Speed
461 MB/s Slightly faster read speed.
+6%
433 MB/s
Write
Avg. Sequential Write Speed
395 MB/s Hugely faster write speed.
+116%
183 MB/s
4K Read
Avg. 4K Random Read Speed
36.4 MB/s Much faster random read.
+50%
24.2 MB/s
4K Write
Avg. 4K Random Write Speed
81.9 MB/s Faster random write.
+12%
73.1 MB/s
Mixed
Avg. Sequential Mixed IO Speed
365 MB/s Much faster mixed IO speed.
+66%
220 MB/s
4K Mixed
Avg. 4K Random Mixed IO Speed
45.9 MB/s Hugely faster random mixed IO.
+208%
14.9 MB/s
SusWrite
Avg. Sustained Write Speed
322 MB/s Hugely faster sustained write speed.
+119%
147 MB/s
Read
Peak Sequential Read Speed
514 MB/s Slightly faster peak read speed.
+7%
479 MB/s
Write
Peak Sequential Write Speed
486 MB/s Hugely faster peak write speed.
+149%
195 MB/s
4K Read
Peak 4K Random Read Speed
49.1 MB/s Much faster peak random read.
+72%
28.5 MB/s
4K Write
Peak 4K Random Write Speed
123 MB/s Faster peak random write.
+21%
102 MB/s
Mixed
Peak Sequential Mixed IO Speed
457 MB/s Hugely faster peak mixed IO speed.
+94%
236 MB/s
4K Mixed
Peak 4K Random Mixed IO Speed
66.1 MB/s Hugely faster peak random mixed IO.
+257%
18.5 MB/s
SusWrite
Peak Sequential Sustained Write 60s Average
396 MB/s Hugely faster peak sustained write speed.
+103%
195 MB/s
Market Share
Based on 76,491,656 SSDs tested
Market Share
Market Share (trailing 30 days)
0.05 % Hugely higher market share.
+400%
0.01 %
Value
Value For Money
21.1 % Hugely better value.
+403%
4.19 %
User Rating
UBM User Rating
57 % Slightly more popular.
+10%
52 %
Price
Price (score)
$53 Much cheaper.
+54%
$116
Age
Newest
42 Months Much more recent.
+74%
159 Months
DQ Read
Peak 4K-64Thread Read Speed
389 MB/s Much faster peak deep queue read.
+31%
296 MB/s
DQ Write
Peak 4K-64Thread Write Speed
362 MB/s Hugely faster peak deep queue write.
+107%
175 MB/s
AS-SSD Total
AS-SSD Total Score
1291 Pts Much stronger server IO.
+51%
855 Pts
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
372 MB/s Hugely faster peak deep queue mixed IO.
+537%
58.4 MB/s
ADQ Read
Avg. 4K-64Thread Read Speed
349 MB/s Hugely faster deep queue read.
+122%
157 MB/s
ADQ Write
Avg. 4K-64Thread Write Speed
299 MB/s Hugely faster deep queue write.
+143%
123 MB/s
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
280 MB/s Hugely faster deep queue mixed IO.
+724%
34 MB/s
Capacity
Capacity
250GB 128GB
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The 128GB Crucial M4 is almost three years old, an extremely long time in SSD land. With peak and average sequential read/write speeds of 500/194 and 429/185 the 128GB M4 matches the group leaders at reading but lags by 60% at writing. Comparing the 128GB and 256GB versions of the M4 shows that the two drives have a very similar performance profile. This suggests that both drives have the same number of NAND channels which bodes well for the smaller capacity drive as a lot of other drives exhibit slower writes speeds in the smaller capacity varieties. Small file 4k peak and average read/write speeds measured at 27/87 and 21/52 MB/s which is only 13% below the average of the nine user voted group leaders. Considering its age the M4 is a very impressive drive but there is far better value for money available in today's market[Feb '14 SSDrivePro]

MORE DETAILS

Solid State Drive Rankings (Price vs Performance) July 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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