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Corsair

CMFSSD-256GBG2D 256GB

▲ 500 ▼

Release date ≤ Q1 2014.

Average Bench: 25.3% (1039th of 1072)

Based on 180 user benchmarks.  Models: CORSAIR CMFSSD-256GBG2D, CORSAIR CMFSSD-256GBG2
Poor: 16%Average: 25.3% Great: 34%

Popular builds with this SSD

Very poor average bench

The Corsair CMFSSD-256GBG2D 256GB averaged 74.7% 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. 4K Random Read Speed 19.1MB/s
Avg. Sequential Read Speed 195MB/s

Very good consistency

The range of scores (95th - 5th percentile) for the Corsair CMFSSD-256GBG2D 256GB is just 17.4%. This is a relatively narrow range which indicates that the Corsair CMFSSD-256GBG2D 256GB performs reasonably consistently under varying real world conditions.

Weaknesses

Avg. 4K-64Thread Write Speed 7.14MB/s
Avg. 4K-64Thread Read Speed 16.4MB/s
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Average Bench

(Based on 180 samples)
Rank 103925.3%
Min Avg Max
147 Read 195 218
12.6 Write 84.1 177
48.8 Mixed 111 190
30 SusWrite 85.8 170
26.4% 119 MB/s
Min Avg Max
10.1 4K Read 19.1 25.3
3.11 4K Write 7.54 9.28
3.31 4K Mixed 6.51 9
41.2% 11 MB/s
Min Avg Max
4.88 DQ Read 16.4 28
5.87 DQ Write 7.14 8.2
4.48 DQ Mixed 7.32 9.34
6.6% 10.3 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
85GB free
Firmware: VBM18C1Q
SusWrite @10s intervals: 102 77 124 150 168 162 MB/s
34.9% Below average
Read 325
Write 28.6
Mixed 94.6
SusWrite 130
32% 145 MB/s
4K Read 20.4
4K Write 8.8
4K Mixed 8.2
46% 12.5 MB/s
DQ Read 15.9
DQ Write 6.5
DQ Mixed 9.3
7% 10.6 MB/s
136GB free
Firmware: VBM18C1Q
SusWrite @10s intervals: 154 151 151 160 160 150 MB/s
32.9% Below average
Read 217
Write 146
Mixed 160
SusWrite 154
38% 169 MB/s
4K Read 22.3
4K Write 8.8
4K Mixed 8.3
49% 13.1 MB/s
DQ Read 15.7
DQ Write 6.6
DQ Mixed 9
7% 10.4 MB/s
123GB free
Firmware: VBM18C1Q
SusWrite @10s intervals: 136 158 154 136 103 88 MB/s
30.8% Below average
Read 205
Write 172
Mixed 158
SusWrite 129
37% 166 MB/s
4K Read 22.3
4K Write 9
4K Mixed 8.2
49% 13.2 MB/s
DQ Read 15.9
DQ Write 6.5
DQ Mixed 9.1
7% 10.5 MB/s
37GB free
Firmware: VBM19C1Q
SusWrite @10s intervals: 75 77 74 70 76 137 MB/s
27% Poor
Read 199
Write 53.5
Mixed 103
SusWrite 84.9
24% 110 MB/s
4K Read 19.7
4K Write 8.9
4K Mixed 8.5
45% 12.4 MB/s
DQ Read 15
DQ Write 6.5
DQ Mixed 9
7% 10.2 MB/s
199GB free (System drive)
Firmware: VBM18C1Q
SusWrite @10s intervals: 132 113 142 144 145 146 MB/s
25.5% Poor
Read 182
Write 140
Mixed 144
SusWrite 137
34% 151 MB/s
4K Read 14.7
4K Write 4.7
4K Mixed 6.7
33% 8.7 MB/s
15GB free (System drive)
Firmware: VBM19C1Q
SusWrite @10s intervals: 31 41 33 32 29 37 MB/s
24.8% Poor
Read 201
Write 75.5
Mixed 81.6
SusWrite 33.7
22% 97.9 MB/s
4K Read 21.6
4K Write 9.1
4K Mixed 8.6
49% 13.1 MB/s
DQ Read 15.4
DQ Write 6.3
DQ Mixed 9.3
7% 10.3 MB/s
16GB free
Firmware: VBM19C1Q
SusWrite @10s intervals: 124 108 90 75 48 48 MB/s
23.1% Poor
Read 188
Write 150
Mixed 147
SusWrite 82.2
32% 142 MB/s
4K Read 16.2
4K Write 6.7
4K Mixed 6.3
36% 9.73 MB/s
90GB free (System drive)
Firmware: VBM18C1Q
SusWrite @10s intervals: 32 32 44 26 45 46 MB/s
21.4% Poor
Read 171
Write 28.7
Mixed 28.7
SusWrite 37.6
14% 66.4 MB/s
4K Read 22.5
4K Write 4.3
4K Mixed 5.5
43% 10.8 MB/s
180 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 75,702,489 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 CMFSSD-256GBG2D 256GB Builds (Compare 527 builds) See popular component choices, score breakdowns and rankings
Gaming
Gaming 37%
Jet ski
Desktop
Desktop 68%
Battle cruiser
Workstation
Workstation 29%
Raft

Motherboard: Asus Rampage II Extreme

CPU
Core i7-920Intel  $90Bench 62%, 69,074 samples176x
Core i7-950Intel  $100Bench 66%, 36,389 samples46x
Core i7 975Intel  $550Bench 72%, 3,143 samples46x
GPU
GTX 1060-6GBNvidia  $117Bench 56%, 1,368,019 samples30x
GTX 1070Nvidia  $132Bench 80%, 1,459,281 samples30x
GTX 970Nvidia  $200Bench 49%, 834,238 samples30x
SSD
CMFSSD-256GBG2D 256GBCorsairBench 25%, 180 samples1x
RAM
6x2GBUnknownBench 46%, 38,297 samples109x
6x4GBUnknownBench 47%, 28,320 samples83x
3x4GBUnknownBench 42%, 39,448 samples46x
EDIT WITH CUSTOM PC BUILDER Value: 101% - Outstanding Total price: $207

Popular CMFSSD-256GBG2D 256GB compatible motherboards:

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

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]

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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.

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Speed Comparisons

vs Crucial MX500 250GB
vs Samsung 850 Evo 120GB
vs Samsung 860 Evo 250GB
vs Samsung 870 Evo 250GB
vs Samsung 850 Pro 512GB
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vs Samsung 850 Evo 1TB

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 »

 Best User Rated
The Best.
CPUGPUSSD
Intel Core i5-13600K $273Nvidia RTX 4060 $295Crucial MX500 250GB $40
Intel Core i5-12400F $133Nvidia RTX 4060-Ti $385Samsung 850 Evo 120GB $80
Intel Core i5-12600K $178Nvidia RTX 4070 $539Samsung 860 Evo 250GB $52
HDDRAMUSB
Seagate Barracuda 1TB (2016) $39Corsair Vengeance LPX DDR4 3200 C16 2x8GB $40SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $37Corsair Vengeance LPX DDR4 3000 C15 2x8GB $43SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $51G.SKILL Trident Z DDR4 3200 C14 4x16GB $351SanDisk Ultra Fit 32GB $16
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