Average Bench: 67.5% (376th of 860)

Based on 2,344 user benchmarks.  Models: ADATA SP900, ADATA SSD SP900 256GB-DL2, ADATA SP 900

Above average average bench

The Adata SP900 256GB averaged 32.4% lower than the peak scores attained by the group leaders. This isn't a great result which indicates that there are much faster alternatives on the comparison list.


Avg. 4K Random Write Speed 78.2MB/s
Avg. 4K Random Read Speed 22.6MB/s

Above average consistency

The range of scores (95th - 5th percentile) for the Adata SP900 256GB is 32.8%. This is a relatively narrow range which indicates that the Adata SP900 256GB performs reasonably consistently under varying real world conditions.


Avg. 4K-64Thread Read Speed 142MB/s
Avg. Sequential Write Speed 231MB/s

Average Bench

(Based on 2,344 samples)
Min Avg Max
368 Read 474 513
179 Write 231 286
204 Mixed 287 349
72.7% 331 MB/s
Min Avg Max
9.76 4K Read 22.6 32
35.3 4K Write 78.2 116
7.53 4K Mixed 14.5 21.4
94.2% 38.4 MB/s
Min Avg Max
20.5 DQ Read 142 271
59.7 DQ Write 179 259
8.09 DQ Mixed 43.3 79.7
65.3% 122 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
7GB free
Firmware: 5.8. Max speed: SATA 3.0 600 MB/s
Read 499
Write 255
Mixed 268
75% 340 MB/s
4K Read 30.3
4K Write 86.3
4K Mixed 18.5
115% 45 MB/s
DQ Read 257
DQ Write 233
DQ Mixed 78.6
105% 190 MB/s
100GB free
Firmware: 5.0.
Read 487
Write 240
Mixed 285
74% 337 MB/s
4K Read 22
4K Write 96.9
4K Mixed 20.9
111% 46.6 MB/s
DQ Read 232
DQ Write 186
DQ Mixed 43.4
78% 154 MB/s
83GB free
Firmware: 5.8.2 Max speed: SATA 3.0 600 MB/s
Read 484
Write 257
Mixed 345
80% 362 MB/s
4K Read 25.2
4K Write 73
4K Mixed 10.8
91% 36.4 MB/s
DQ Read 19.7
DQ Write 71.6
DQ Mixed 75.4
49% 55.6 MB/s
2,344 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 4,120,634 SSDs tested.


AmazonUS $118.7419 mins ago.
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Typical SP900 256GB Builds (Compare 13,148 builds) See popular component choices, score breakdowns and rankings.
Gaming 94%
Nuclear submarine
Desktop 80%
Aircraft carrier
Workstation 63%

Motherboard: Asus Z170 PRO GAMING - $157

EDIT WITH CUSTOM PC BUILDER Value: 80% - Very good Total price: $1,147

Popular SP900 256GB compatible motherboards:

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Solid State Drive Rankings (Price vs Performance) October 2017 SSD Rankings.

Welcome to our consumer SSD comparison. We calculate effective speed based on real world performance then adjust by cost per GB to yield a value for money rating. Calculated values don't always tell the whole picture so we check them against thousands of individual user ratings. The customizable table below combines these factors and more to bring you the definitive list of top SSDs. Share your opinion by voting. [SSDrivePro]


Controller: LSI SandForce SF2281. NAND Flash: Intel Micron Synchronous 25nm MLC.

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860 Drives (Compared) Thousands of user benchmarks compiled into one comparison list.

See how consistently different SSDs perform with varying real world conditions. The charts also illustrate overall performance, popularity and rank.

 Frequently Asked Questions

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The Best.
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AMD Ryzen 7 1700 $280AMD RX 480 $491Samsung 850 Pro 256GB $126
Intel Core i5-7600K $230Nvidia GTX 1060-6GB $260Samsung 850 Evo 500GB $150
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $163SanDisk Extreme 64GB $33
Seagate Barracuda 3TB (2016) $75G.SKILL Trident Z DDR4 3200 C14 4x16GB $842SanDisk Extreme 32GB $22
Seagate Barracuda 2TB (2016) $60Corsair Vengeance LPX DDR4 3200 C16 2x8GB $180SanDisk Ultra Fit 32GB $13
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