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Jamesdon

KEY JD240 240GB

▲ 500 ▼

Release date ≈ Q2 2020.

Average Bench: 57.4% (829th of 1074)

Based on 15 user benchmarks.  Model: JAMESDON KEY JD240 240GB
Poor: 32%Average: 57.4% Great: 85%

Popular builds with this SSD

Average average bench

The Jamesdon KEY JD240 240GB averaged 42.6% 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 23.1MB/s
Avg. Sequential Read Speed 456MB/s

Below average consistency

The range of scores (95th - 5th percentile) for the Jamesdon KEY JD240 240GB is 52.6%. This is a relatively wide range which indicates that the Jamesdon KEY JD240 240GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. 4K-64Thread Mixed IO Speed 18.8MB/s
Avg. Sustained Write Speed 177MB/s
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Average Bench

(Based on 15 samples)
Rank 82957.4%
Min Avg Max
342 Read 456 517
8.5 Write 373 437
16.5 Mixed 252 412
49.6 SusWrite 177 427
70.1% 314 MB/s
Min Avg Max
13.3 4K Read 23.1 30.6
3.7 4K Write 51.4 102
0.3 4K Mixed 13.6 28.3
79.6% 29.4 MB/s
Min Avg Max
45.5 DQ Read 132 214
9 DQ Write 154 295
0.7 DQ Mixed 18.8 42.3
48.6% 101 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
186GB free
Firmware: JD20
SusWrite @10s intervals: 437 425 433 438 416 415 MB/s
90.4% Outstanding
Read 483
Write 428
Mixed 402
SusWrite 427
98% 435 MB/s
4K Read 30.6
4K Write 99.7
4K Mixed 18.7
123% 49.7 MB/s
DQ Read 128
DQ Write 295
DQ Mixed 27.8
74% 150 MB/s
173GB free (System drive)
Firmware: JD20
SusWrite @10s intervals: 415 230 110 54 60 65 MB/s
74.8% Very good
Read 508
Write 411
Mixed 412
SusWrite 156
83% 372 MB/s
4K Read 28.2
4K Write 98.8
4K Mixed 21
122% 49.3 MB/s
DQ Read 138
DQ Write 279
DQ Mixed 28
72% 148 MB/s
71GB free
Firmware: JD20
SusWrite @10s intervals: 307 333 302 369 328 90 MB/s
72% Very good
Read 435
Write 370
Mixed 316
SusWrite 288
79% 352 MB/s
4K Read 26.1
4K Write 67.6
4K Mixed 20.3
101% 38 MB/s
DQ Read 135
DQ Write 176
DQ Mixed 37.4
61% 116 MB/s
164GB free (System drive)
Firmware: JD20
SusWrite @10s intervals: 260 155 65 44 103 9.7 MB/s
44.6% Average
Read 400
Write 398
Mixed 273
SusWrite 106
66% 294 MB/s
4K Read 22.7
4K Write 80.2
4K Mixed 0.7
78% 34.5 MB/s
DQ Read 47.4
DQ Write 9
DQ Mixed 0.7
8% 19 MB/s
102GB free
Firmware: 0
SusWrite @10s intervals: 310 179 43 5 38 40 MB/s
42% Average
Read 355
Write 340
Mixed 300
SusWrite 102
62% 275 MB/s
4K Read 14.1
4K Write 35
4K Mixed 14.3
58% 21.1 MB/s
DQ Read 45.5
DQ Write 127
DQ Mixed 21.2
35% 64.4 MB/s
63GB free (System drive)
Firmware: JD20
SusWrite @10s intervals: 185 11 12 46 40 4 MB/s
36.7% Below average
Read 512
Write 437
Mixed 19.1
SusWrite 49.6
56% 254 MB/s
4K Read 23.7
4K Write 10.1
4K Mixed 0.7
42% 11.5 MB/s
DQ Read 78.4
DQ Write 11.2
DQ Mixed 0.7
12% 30.1 MB/s
72GB free (System drive)
Firmware: JD20
SusWrite @10s intervals: 134 204 59 11 29 60 MB/s
33.5% Below average
Read 478
Write 398
Mixed 20
SusWrite 82.7
54% 245 MB/s
4K Read 20
4K Write 7.6
4K Mixed 0.5
35% 9.37 MB/s
15 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 75,937,320 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 KEY JD240 240GB Builds (Compare 11,115 builds) See popular component choices, score breakdowns and rankings
Gaming
Gaming 78%
Battleship
Desktop
Desktop 86%
Aircraft carrier
Workstation
Workstation 73%
Battleship

Motherboard: Gigabyte GA-B450 AORUS ELITE

CPU
Ryzen 5 3600AMD  $90Bench 83%, 1,072,639 samples2,670x
Ryzen 5 2600AMD  $145Bench 73%, 179,588 samples1,469x
Ryzen 7 2700XAMD  $199Bench 76%, 159,077 samples1,030x
GPU
RTX 2060Nvidia  $290Bench 90%, 645,160 samples769x
RTX 3060Nvidia  $283Bench 100%, 447,556 samples561x
RX 580AMD  $130Bench 52%, 360,351 samples549x
SSD
KEY JD240 240GBJamesdonBench 57%, 15 samples1x
RAM
Vengeance LPX DDR4 3200 C16 2x8GBCorsair  $39Bench 85%, 653,654 samples640x
HyperX DDR4 3200 C16 2x8GBKingstonBench 86%, 239,203 samples559x
Vengeance RGB PRO DDR4 3200 C16 2x8GBCorsair  $60Bench 85%, 346,786 samples440x
EDIT WITH CUSTOM PC BUILDER Value: 92% - Outstanding Total price: $419

Popular KEY JD240 240GB 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) May 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

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1074 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 $293Crucial MX500 250GB $39
Intel Core i5-12600K $171Nvidia RTX 4060-Ti $385Samsung 850 Evo 120GB $80
Intel Core i3-12100F $80Nvidia RTX 4070 $500Samsung 870 Evo 250GB $45
HDDRAMUSB
Seagate Barracuda 1TB (2016) $39Corsair Vengeance LPX DDR4 3200 C16 2x8GB $39SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $32Corsair Vengeance LPX DDR4 3000 C15 2x8GB $48SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $62G.SKILL Trident Z DDR4 3200 C14 4x16GB $351SanDisk Ultra Fit 32GB $16
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