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AdataASP900S3-128GM-C
OCZRADEON-R7SSD-240G
▲ 511,619 ▼

Controller: LSI SandForce SF2281. NAND Flash: Intel Micron Synchronous 25nm MLC. Release date: Q1 2012.

VS
▲ 53677 ▼

Controller: Indilinx Barefoot 3 IDX500M00. Flash: Toshiba A19nm MLC. Release date: Q3 2014.

Effective Speed 
+29%
Real World Speed
Performance profile from 5,176 user samples
Benchmark your SSD here
2,820 User Benchmarks
Best Bench: 80% 50GB free
Worst Bench: 57% 13GB free (System drive)
Poor: 57% Great: 80%
SPEED RANK: 697th / 1080
2,356 User Benchmarks
Best Bench: 108% 146GB free (System drive)
Worst Bench: 58% 80GB free (System drive)
Poor: 58% Great: 108%
SPEED RANK: 360th / 1080
Effective Speed
Effective SSD Speed 		68.6 % 88.6 % Faster effective speed.
+29%
Average Score 
+64%
Read
Avg. Sequential Read Speed 		380 MB/s 400 MB/s Slightly faster read speed.
+5%
Write
Avg. Sequential Write Speed 		146 MB/s 426 MB/s Hugely faster write speed.
+192%
4K Read
Avg. 4K Random Read Speed 		27.5 MB/s Faster random read.
+18% 		23.3 MB/s
4K Write
Avg. 4K Random Write Speed 		81.6 MB/s +1% 80.7 MB/s
Mixed
Avg. Sequential Mixed IO Speed 		190 MB/s 318 MB/s Much faster mixed IO speed.
+67%
4K Mixed
Avg. 4K Random Mixed IO Speed 		33.6 MB/s +5% 32 MB/s
SusWrite
Avg. Sustained Write Speed 		121 MB/s 374 MB/s Hugely faster sustained write speed.
+209%
Peak Score 
+65%
Read
Peak Sequential Read Speed 		428 MB/s 448 MB/s +5%
Write
Peak Sequential Write Speed 		168 MB/s 487 MB/s Hugely faster peak write speed.
+190%
4K Read
Peak 4K Random Read Speed 		32 MB/s Faster peak random read.
+16% 		27.7 MB/s
4K Write
Peak 4K Random Write Speed 		116 MB/s 123 MB/s Slightly faster peak random write.
+6%
Mixed
Peak Sequential Mixed IO Speed 		216 MB/s 352 MB/s Much faster peak mixed IO speed.
+63%
4K Mixed
Peak 4K Random Mixed IO Speed 		41.1 MB/s +4% 39.6 MB/s
SusWrite
Peak Sequential Sustained Write 60s Average 		148 MB/s 464 MB/s Hugely faster peak sustained write speed.
+214%
Value & Sentiment 
+∞%
Market Share
Based on 77,578,169 SSDs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.01 % Insanely higher market share.
+∞% 		0 %
Value
Value For Money 		10.7 % +3% 10.3 %
User Rating
UBM User Rating 		51 % 53 % +4%
Price
Price (score) 		$40 Much cheaper.
+64% 		$110
Nice To Haves 
+82%
Age
Newest 		152 Months 123 Months More recent.
+19%
DQ Read
Peak 4K-64Thread Read Speed 		199 MB/s 365 MB/s Hugely faster peak deep queue read.
+83%
DQ Write
Peak 4K-64Thread Write Speed 		166 MB/s 372 MB/s Hugely faster peak deep queue write.
+124%
AS-SSD Total
AS-SSD Total Score 		712 Pts 1,216 Pts Much stronger server IO.
+71%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed 		171 MB/s 296 MB/s Much faster peak deep queue mixed IO.
+73%
ADQ Read
Avg. 4K-64Thread Read Speed 		160 MB/s 311 MB/s Hugely faster deep queue read.
+94%
ADQ Write
Avg. 4K-64Thread Write Speed 		143 MB/s 283 MB/s Hugely faster deep queue write.
+98%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed 		125 MB/s 244 MB/s Hugely faster deep queue mixed IO.
+95%
Specifications 
Capacity
Capacity 		128GB 240GB
Conclusion 
Average Bench 68.6%
Average Bench 88.6%

The 128GB Adata Premier Pro SP900 has peak and average sequential read/write speeds of 496/166 and 175/106 MB/s. The average speeds are significantly worse than peak which indicates that the SP900 has an unstable performance profile. Additionally, the peak write speed of 166 MB/s is 90% below the group leaders. In terms of small file 4K read/write speeds things are a little better where the SP900 achieved peak and average scores of 23/83 and 17/29 MB/s. These 4K figures still lag the group leaders by around 40%. The Overall effective speed for the SP900 measures 340 MB/s, the worst I have seen to date on a 128GB SSD. The SP900 is not particularly well priced, and therefore represents poor value for money. There are both faster and cheaper 128GB alternatives available amongst the group leaders. [Feb '14 SSDrivePro]

MORE DETAILS

The AMD Radeon R7 SSD is manufactured by OCZ (Toshiba). The release of the R7 is in line with OCZ's approximate six-monthly release cycle. Apart from newer NAND memory, the R7 has the same components as the OCZ Vector 150. Comparing the AMD R7 and Vector 150 shows that peak performance is broadly unchanged. We don't have any user samples for the new R7 yet but based on components, it's reasonable to assume that real-world effective speeds will also be comparable to the Vector 150. Although the 240GB R7 SSD is a strong performer, disappointingly, it brings nothing new to the table in terms of hardware. Unless OCZ/Toshiba can pull something out of the bag they will continue to loose market share to Samsung who are still managing to innovate with each of their releases; most recently the 850 pro series.  [Aug '14 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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Solid State Drives
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