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Micron

C400 Real 256GB

▲ 500 ▼

Release date ≈ Q2 2015.

Average Bench: 53.5% (875th of 1080)

Based on 50 user benchmarks.  Model: Micron C400 Real
Poor: 42%Average: 53.5% Great: 63%

Popular builds with this SSD

Average average bench

The Micron C400 Real 256GB averaged 46.5% 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.

Strengths

Avg. Sequential Read Speed 450MB/s
Avg. 4K Random Write Speed 49.9MB/s

Good consistency

The range of scores (95th - 5th percentile) for the Micron C400 Real 256GB is 20.7%. This is a relatively narrow range which indicates that the Micron C400 Real 256GB performs reasonably consistently under varying real world conditions.

Weaknesses

Avg. 4K-64Thread Mixed IO Speed 13.5MB/s
Avg. Sustained Write Speed 147MB/s
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Average Bench

(Based on 50 samples)
Rank 87553.5%
Min Avg Max
317 Read 450 508
129 Write 234 270
59.8 Mixed 288 349
39.1 SusWrite 147 253
62% 280 MB/s
Min Avg Max
10.9 4K Read 17.3 23.8
2.67 4K Write 49.9 97.9
2.25 4K Mixed 8.84 16.3
63.9% 25.3 MB/s
Min Avg Max
14 DQ Read 108 183
10.1 DQ Write 122 225
4.69 DQ Mixed 13.5 23.8
38.3% 81.2 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
135GB free (System drive)
Firmware: 070H
SusWrite @10s intervals: 241 247 247 244 255 247 MB/s
55.4% Above average
Read 419
Write 232
Mixed 216
SusWrite 247
62% 279 MB/s
4K Read 16.5
4K Write 38.1
4K Mixed 13.2
62% 22.6 MB/s
DQ Read 118
DQ Write 110
DQ Mixed 23.3
42% 83.7 MB/s
208GB free (System drive)
Firmware: 010G
SusWrite @10s intervals: 231 236 234 235 237 251 MB/s
53.8% Above average
Read 407
Write 256
Mixed 258
SusWrite 238
65% 290 MB/s
4K Read 16.4
4K Write 32.9
4K Mixed 13.3
59% 20.9 MB/s
DQ Read 124
DQ Write 112
DQ Mixed 23.2
43% 86.5 MB/s
33GB free (System drive)
Firmware: 040H
SusWrite @10s intervals: 202 205 67 88 78 65 MB/s
50.7% Above average
Read 423
Write 224
Mixed 254
SusWrite 118
56% 255 MB/s
4K Read 18.9
4K Write 48.7
4K Mixed 14.2
73% 27.3 MB/s
DQ Read 118
DQ Write 111
DQ Mixed 23.1
42% 84.2 MB/s
30GB free (System drive)
Firmware: 07MH
SusWrite @10s intervals: 173 135 128 115 123 117 MB/s
48.5% Average
Read 406
Write 217
Mixed 217
SusWrite 132
54% 243 MB/s
4K Read 14.3
4K Write 49.3
4K Mixed 13.4
65% 25.7 MB/s
DQ Read 116
DQ Write 104
DQ Mixed 22.5
41% 80.8 MB/s
50 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 76,226,646 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 C400 Real 256GB Builds (Compare 2,889 builds) See popular component choices, score breakdowns and rankings
Gaming
Gaming 13%
Tree trunk
Desktop
Desktop 67%
Battle cruiser
Workstation
Workstation 12%
Tree trunk

Motherboard: Dell Precision T3600

CPU
Xeon E5-1620 0Intel  $345Bench 70%, 17,464 samples1,078x
Xeon E5-1650 0Intel  $230Bench 73%, 10,189 samples452x
Xeon E5-1603 0IntelBench 60%, 3,589 samples239x
GPU
Quadro 2000NvidiaBench 6%, 15,855 samples167x
GTX 1070Nvidia  $278Bench 80%, 1,459,281 samples139x
Quadro 4000NvidiaBench 7%, 8,609 samples117x
SSD
C400 Real 256GBMicronBench 53%, 50 samples1x
RAM
M393B5273DH0-CK0 4x4GBSamsung-00CEBench 85%, 1,049 samples147x
HMT351R7CFR8C-PB 4x4GBHynix-00ADBench 83%, 808 samples131x
HMT31GR7CFR4C-PB 4x8GBHynix-00ADBench 78%, 761 samples76x
EDIT WITH CUSTOM PC BUILDER Value: 66% - Good Total price: $345

Popular C400 Real 256GB compatible motherboards:

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1080 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?
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The Best
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Intel Core i5-13600K $249Nvidia RTX 4060-Ti $385WD Black SN850X M.2 1TB $79
Intel Core i5-12400F $110Nvidia RTX 4070 $520Crucial T700 M.2 4TB $383
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