UserBenchmark: Adata Premier Pro SP900 vs XPG SX900

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AdataASX900S3-256GM-C

BUY • $164

AdataASP900S3-128GM-C

BUY • $40

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Real World Speed

Performance profile from 9,546 user samples

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6,726 User Benchmarks

Best Bench: 90% 238GB free
Worst Bench: 58% 1GB free

Poor: 58% Great: 90%

SPEED RANK: 542^nd / 1072

2,820 User Benchmarks

Best Bench: 80% 50GB free
Worst Bench: 57% 13GB free (System drive)

Poor: 57% Great: 80%

SPEED RANK: 689^th / 1072


Effective Speed Effective SSD Speed		76.6 %	Faster effective speed. +12%		68.6 %


Read Avg. Sequential Read Speed	368 MB/s		380 MB/s	+3%
Write Avg. Sequential Write Speed	256 MB/s	Much faster write speed. +75%	146 MB/s
4K Read Avg. 4K Random Read Speed	28.3 MB/s	+3%	27.5 MB/s
4K Write Avg. 4K Random Write Speed	79.7 MB/s		81.6 MB/s	+2%
Mixed Avg. Sequential Mixed IO Speed	270 MB/s	Much faster mixed IO speed. +42%	190 MB/s
4K Mixed Avg. 4K Random Mixed IO Speed	35.2 MB/s	+5%	33.6 MB/s
SusWrite Avg. Sustained Write Speed	190 MB/s	Much faster sustained write speed. +57%	121 MB/s


Read Peak Sequential Read Speed	423 MB/s		428 MB/s	+1%
Write Peak Sequential Write Speed	298 MB/s	Much faster peak write speed. +77%	168 MB/s
4K Read Peak 4K Random Read Speed	34.7 MB/s	Slightly faster peak random read. +8%	32 MB/s
4K Write Peak 4K Random Write Speed	111 MB/s		116 MB/s	+5%
Mixed Peak Sequential Mixed IO Speed	302 MB/s	Much faster peak mixed IO speed. +40%	216 MB/s
4K Mixed Peak 4K Random Mixed IO Speed	43.3 MB/s	Slightly faster peak random mixed IO. +5%	41.1 MB/s
SusWrite Peak Sequential Sustained Write 60s Average	236 MB/s	Much faster peak sustained write speed. +59%	148 MB/s

Market Share

Based on 75,665,398 SSDs tested

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Market Share Market Share (trailing 30 days)	0.01 %		0.01 %
Value Value For Money	6.96 %		10.7 %	Much better value. +53%
User Rating UBM User Rating	53 %	+4%	51 %
Price Price (score)	$164		$40	Much cheaper. +76%


Age Newest	145 Months		145 Months
DQ Read Peak 4K-64Thread Read Speed	298 MB/s	Much faster peak deep queue read. +50%	199 MB/s
DQ Write Peak 4K-64Thread Write Speed	264 MB/s	Much faster peak deep queue write. +59%	166 MB/s
AS-SSD Total AS-SSD Total Score	978 Pts	Much stronger server IO. +37%	712 Pts
DQ Mixed Peak 4K-64Thread Mixed IO Speed	256 MB/s	Much faster peak deep queue mixed IO. +50%	171 MB/s
ADQ Read Avg. 4K-64Thread Read Speed	245 MB/s	Much faster deep queue read. +53%	160 MB/s
ADQ Write Avg. 4K-64Thread Write Speed	219 MB/s	Much faster deep queue write. +53%	143 MB/s
ADQ Mixed Avg. 4K-64Thread Mixed IO Speed	194 MB/s	Much faster deep queue mixed IO. +55%	125 MB/s


Capacity Capacity			256GB			128GB

The SX900 and SX910 are both Sandforce 2881 based SSDs from Adata. The only difference between them is their warranty period: 5 years for the SX910 vs 3 years for the SX900. Both drives utilize Intel-Micron 25Nm MLC so the differences must be at a "sub-atomic" level, or at least beyond the scope of the specs. Once again as with all Sandforce 2881 based drives performance is skewed in favour of reads over writes. With a peak sequential read of 510 MB/s and corresponding sequential write of 309 MB/s the SX series does not break any records but, like all SSDs, they do offer speeds way in excess of mechanical hard drives. Overall performance lags the SSD group leaders by around 40% and there are far faster, cheaper and newer (non-Sandforce) alternatives such as the Samsung 840 Evo or the Sandisk Ultra Plus available. ^{[Jan '14 SSDrivePro]}

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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]}

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Welcome to our 2.5" and M.2 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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CPU	GPU	SSD
Intel Core i5-13600K $279	Nvidia RTX 4060 $300	Crucial MX500 250GB $40
Intel Core i5-12400F $133	Nvidia RTX 4060-Ti $385	Samsung 850 Evo 120GB $80
Intel Core i5-12600K $182	Nvidia RTX 4070 $409	Samsung 860 Evo 250GB $52

HDD	RAM	USB
Seagate Barracuda 1TB (2016) $39	Corsair Vengeance LPX DDR4 3200 C16 2x8GB $40	SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $30	Corsair Vengeance LPX DDR4 3000 C15 2x8GB $43	SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $51	G.SKILL Trident Z DDR4 3200 C14 4x16GB $351	SanDisk Ultra Fit 32GB $16

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