Nvme

SanDisk A400 SD9 256GB

SanDisk A400 SD9 256GB
BENCHMARKS (438)
MKT (0%)
BUILDS
(0)

Effective Speed +13% Effective Speed 13%Average Score +0%Read 104%, Write 7%, 4K Read -11%, 4K Write 1%, Mixed 9%, 4K Mixed -39%, SusWrite -70%Peak Score +31% Read 195%, Write 39%, 4K Read -1%, 4K Write 1%, Mixed 68%, 4K Mixed -9%, SusWrite -78%Value & Sentiment User Rating -14%, Market Share -∞%Nice To Haves +38% DQ Read 80%, DQ Write 49%, DQ Mixed 17%, ADQ Read 46%, ADQ Write 25%, ADQ Mixed 1%, Age 25%, AS-SSD Total 60%

Average Bench: 111% (211^th of 1072)

Based on 438 user benchmarks. Model: NVMe SanDisk A400 SD9

Poor: 74%Average: 111% Great: 140%

Popular builds with this SSD

Outstanding average bench

The Nvme SanDisk A400 SD9 256GB averaged 10.9% higher than the peak scores attained by the group leaders. This is an excellent result which ranks the Nvme SanDisk A400 SD9 256GB near the top of the comparison list.

Strengths

Avg. 4K-64Thread Mixed IO Speed 263MB/s

Avg. Sequential Read Speed 935MB/s

See where your SSD ranks →

Poor consistency

The range of scores (95th - 5th percentile) for the Nvme SanDisk A400 SD9 256GB is 65.5%. This is a particularly wide range which indicates that the Nvme SanDisk A400 SD9 256GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. Sustained Write Speed 174MB/s

Avg. Sequential Mixed IO Speed 390MB/s

Average Bench

(Based on 438 samples)

Rank 211111%

Min	Avg	Max
490	Read 935	1,497
211	Write 432	672
212	Mixed 390	713
89.6	SusWrite 174	218
106% 483 MB/s

Min	Avg	Max
14.1	4K Read 30.8	42.5
42.3	4K Write 88.4	123
13.7	4K Mixed 32.5	53.6
135% 50.6 MB/s

Min	Avg	Max
39.1	DQ Read 475	662
113	DQ Write 362	534
15.6	DQ Mixed 263	387
239% 367 MB/s

User Benchmarks

Bench

Sequential

Random 4k

Deep queue 4k

The fastest SSD (mainstream) averages a speed of 100%

BGR-User, 4 months ago.

182GB free (System drive)

Firmware: 0001 Max speed: PCIe 16,000 MB/s

SusWrite @10s intervals: 220 213 208 204 195 201 MB/s

128% Outstanding

Write 406

Mixed 256

SusWrite 207

103% 470 MB/s

4K Read 36.4

4K Write 136

4K Mixed 36.8

174% 69.7 MB/s

DQ Read 549

DQ Write 471

DQ Mixed 228

248% 416 MB/s

ESP-User, 4 days ago.

98GB free (System drive)

Firmware: 0001 Max speed: PCIe 16,000 MB/s

SusWrite @10s intervals: 139 134 107 120 71 89 MB/s

67.3% Good

Write 278

Mixed 238

SusWrite 110

68% 308 MB/s

4K Read 22.6

4K Write 32.5

4K Mixed 26.1

85% 27.1 MB/s

DQ Read 271

DQ Write 172

DQ Mixed 238

173% 227 MB/s

COL-User, 21 days ago.

81GB free (System drive)

Firmware: A3590001 Max speed: PCIe 16,000 MB/s

SusWrite @10s intervals: 165 131 56 88 95 53 MB/s

65.4% Good

Write 241

Mixed 290

SusWrite 98.1

58% 261 MB/s

4K Read 24.8

4K Write 41.8

4K Mixed 30.1

98% 32.2 MB/s

DQ Read 300

DQ Write 242

DQ Mixed 247

191% 263 MB/s

438 MORE »

Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 75,727,222 SSDs tested

Custom PC Builder (Start a new build) Build your perfect PC: compare component prices, popularity, speed and value for money

CHOOSE A COMPONENT:

CPU

GPU

SSD

HDD

RAM

MBD

Typical SanDisk A400 SD9 256GB Builds (Compare 161 builds) See popular component choices, score breakdowns and rankings

Gaming 9%

Tree trunk

Desktop 54%

Yacht

Workstation 8%

Tree trunk

System: Lenovo 81C3

CPU
Core i5-8250UIntelBench 53%, 234,942 samples	116x
Core i7-8550UIntelBench 53%, 184,356 samples	45x

GPU
UHD Graphics 620 (Mobile Kaby Lake R)IntelBench 5%, 420,154 samples	157x
GTX 1070-TiNvidia $299Bench 94%, 412,133 samples	1x
GTX 1070Nvidia $132Bench 80%, 1,459,281 samples	1x

SSD
SanDisk A400 SD9 256GBNvmeBench 111%, 438 samples	46x

RAM
M471A5244CB0-CRC 2x4GBSamsungBench 57%, 36,396 samples	108x
HMAA51S6AMR6N-UH 2x8GBHynixBench 69%, 1,344 samples	19x
4ATF51264HZ-2G3B2 2x4GBMicronBench 59%, 626 samples	16x

EDIT WITH CUSTOM PC BUILDER

Popular SanDisk A400 SD9 256GB systems:

How Fast Is Your SSD? (Bench your build) Size up your PC in less than a minute

Welcome to our PC speed test tool. UserBenchmark will test your PC and compare the results to other users with the same components. You can quickly size up your PC, identify hardware problems and explore the best value for money upgrades.

UserBenchmark of the month

Gaming

Desktop

ProGaming

CPU

GPU

SSD

HDD

RAM

USB

How it works

- Download and run UserBenchmark
- CPU tests include: integer, floating and string
- GPU tests include: six 3D game simulations
- Drive tests include: read, write, sustained write and mixed IO
- RAM tests include: single/multi core bandwidth and latency
- SkillBench (space shooter) tests user input accuracy
- Reports are generated and presented on userbenchmark.com
- Identify the strongest components in your PC
- See speed test results from other users
- Compare your components to the current market leaders
- Explore your best upgrade options with a virtual PC build
- Compare your in-game FPS to other users with your hardware

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]

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.

1072 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

Storage Devices FAQ

What is sustained sequential write speed?

What’s the difference between SLC, MLC and TLC?

What is 3D XPoint and how fast is it?

What’s the difference between SATA, PCIe and NVMe?

What’s the difference between NAND and V-NAND?

What is sequential write speed?

What is sequential read speed?

What is incompressible data?

What is queue depth?

Solid State Drives

What is the SSD value for money rating?

What is 4K 64 thread write speed?

Can CPU power saving states (C1,C2,C3) impact SSD speed?

What is the effective SSD speed index?

How is the AS SSD write score calculated?

How is the AS SSD read score calculated?

How is the AS SSD total score calculated?

ALL FAQs »

CPU	GPU	SSD
Intel Core i5-13600K $273	Nvidia RTX 4060 $295	Crucial MX500 250GB $40
Intel Core i5-12400F $133	Nvidia RTX 4060-Ti $385	Samsung 850 Evo 120GB $80
Intel Core i5-12600K $184	Nvidia RTX 4070 $539	Samsung 860 Evo 250GB $52

HDD	RAM	USB
Seagate Barracuda 1TB (2016) $39	Corsair Vengeance LPX DDR4 3200 C16 2x8GB $45	SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $37	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

Nvme

SanDisk A400 SD9 256GB

Average Bench: 111% (211^th of 1072)

Popular builds with this SSD

Outstanding average bench

Strengths

Poor consistency

Weaknesses

Average Bench

Market Share (See Leaders)

CHOOSE A COMPONENT:

System: Lenovo 81C3

Popular SanDisk A400 SD9 256GB systems:

UserBenchmark of the month

How it works

Group Test Results

Comments

Speed Comparisons

Frequently Asked Questions

Best User Rated

Nvme

SanDisk A400 SD9 256GB

Average Bench: 111% (211th of 1072)

Popular builds with this SSD

Outstanding average bench

Strengths

Poor consistency

Weaknesses

Average Bench

Market Share (See Leaders)

CHOOSE A COMPONENT:

System: Lenovo 81C3

Popular SanDisk A400 SD9 256GB systems:

UserBenchmark of the month

How it works

Group Test Results

Share a related link

Comments

Speed Comparisons

Frequently Asked Questions

Best User Rated

Feedback

Average Bench: 111% (211^th of 1072)