UserBenchmark: Adata XPG SX900 vs Transcend SSD370

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TranscendTS256GSSD370

BUY • $110

AdataASX900S3-256GM-C

BUY • $164

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Real World Speed

Performance profile from 11,975 user samples

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5,249 User Benchmarks

Best Bench: 96% 139GB free
Worst Bench: 54% 14GB free (System drive)

Poor: 54% Great: 96%

SPEED RANK: 487^th / 1072

6,726 User Benchmarks

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

Poor: 58% Great: 90%

SPEED RANK: 542^nd / 1072


Effective Speed Effective SSD Speed		80 %	+4%		76.6 %


Read Avg. Sequential Read Speed	465 MB/s	Faster read speed. +26%	368 MB/s
Write Avg. Sequential Write Speed	283 MB/s	Faster write speed. +11%	256 MB/s
4K Read Avg. 4K Random Read Speed	24.5 MB/s		28.3 MB/s	Faster random read. +16%
4K Write Avg. 4K Random Write Speed	73.3 MB/s		79.7 MB/s	Slightly faster random write. +9%
Mixed Avg. Sequential Mixed IO Speed	251 MB/s		270 MB/s	Slightly faster mixed IO speed. +8%
4K Mixed Avg. 4K Random Mixed IO Speed	33.2 MB/s		35.2 MB/s	Slightly faster random mixed IO. +6%
SusWrite Avg. Sustained Write Speed	231 MB/s	Faster sustained write speed. +22%	190 MB/s


Read Peak Sequential Read Speed	513 MB/s	Faster peak read speed. +21%	423 MB/s
Write Peak Sequential Write Speed	301 MB/s	+1%	298 MB/s
4K Read Peak 4K Random Read Speed	29 MB/s		34.7 MB/s	Faster peak random read. +20%
4K Write Peak 4K Random Write Speed	108 MB/s		111 MB/s	+3%
Mixed Peak Sequential Mixed IO Speed	296 MB/s		302 MB/s	+2%
4K Mixed Peak 4K Random Mixed IO Speed	41.3 MB/s		43.3 MB/s	+5%
SusWrite Peak Sequential Sustained Write 60s Average	295 MB/s	Faster peak sustained write speed. +25%	236 MB/s

Market Share

Based on 75,653,391 SSDs tested

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Market Share Market Share (trailing 30 days)	0 %		0.01 %	Insanely higher market share. +∞%
Value Value For Money	9.8 %	Much better value. +41%	6.96 %
User Rating UBM User Rating	53 %		53 %
Price Price (score)	$110	Much cheaper. +33%	$164


Age Newest	116 Months	More recent. +20%	145 Months
DQ Read Peak 4K-64Thread Read Speed	291 MB/s		298 MB/s	+2%
DQ Write Peak 4K-64Thread Write Speed	288 MB/s	Slightly faster peak deep queue write. +9%	264 MB/s
AS-SSD Total AS-SSD Total Score	987 Pts	+1%	978 Pts
DQ Mixed Peak 4K-64Thread Mixed IO Speed	193 MB/s		256 MB/s	Much faster peak deep queue mixed IO. +33%
ADQ Read Avg. 4K-64Thread Read Speed	255 MB/s	+4%	245 MB/s
ADQ Write Avg. 4K-64Thread Write Speed	246 MB/s	Faster deep queue write. +12%	219 MB/s
ADQ Mixed Avg. 4K-64Thread Mixed IO Speed	161 MB/s		194 MB/s	Faster deep queue mixed IO. +20%


Capacity Capacity			256GB			256GB

The 256GB Transcend SSD370 sports a Silicon Motion (SM2246EN) controller coupled with Micron 20nm synchronous MLC NAND. With peak sequential read/write speeds of 520/290 MBps and peak 4k read/write speeds of 29/116 the SSD370 has an effective speed which is amongst the bottom 25% of ~250GB drives. The effective speed is weighed down by a relatively weak sequential write speed of just 290 MBps. The performance highlight for the SSD370 is its ability to deal with mixed 4k IO which is arguably one of the best real world indicators. At current prices the SSD370 can't compete as there are both cheaper and faster alternatives on the market but prices are almost certain to drop at which time the SSD370 will fare far better in terms of value. ^{[Oct '14 SSDrivePro]}

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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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Solid State Drive Rankings (Price vs Performance) April 2024 SSD Rankings

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 $134	Nvidia RTX 4060-Ti $385	Samsung 850 Evo 120GB $80
Intel Core i5-12600K $184	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) $35	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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