System Light Dark

xentr_theme_editor

xentr_page_setup xentr_appearance xentr_sidebar

  • xentr_page_width

    xentr_toggle_page_width

    xentr_page_width_description

    xentr_color_pickers

    xentr_toggle_color_picker

    xentr_toggle_color_picker_description

    xentr_typography

    xentr_select_the_font_you_want_to_use

    xentr_node_layout

    xentr_grid_layout

    xentr_grid_layout_description

  • Style variation

    xentr_select_the_style_variation_you_want_to_use
    System Light Dark

  • xentr_sidebar

    xentr_toggles_sidebar

    xentr_sidebar_description

    xentr_sticky_sidebar

    xentr_sticky_sidebar_description
    xentr_sidebar_position
    Left
    Right
  • Please do not post any links until you have 3 posts as they will automatically be rejected to prevent SPAM. Many words are also blocked due to being used in SPAM Messages. Thanks!

how much bandwidth is taken up when moving data to a USB key?

Marzipan

Marzipan

Well-known member
Joined
Nov 21, 2007
Messages
15,675
Reaction score
6,470
Age
46
Location
Prince Rupert, British Columbia, Canuckistan
xentr_thread_starter
I'm curious because transferring some 2 - 4 GB files to a couple different flash drives using a USB 3.2 Gen 1 USB A (5Gb/s aka 500MB/s) and a USB 2.0 USB A (480Mb/s, aka 40 - 60MB/s, but since half-duplex, 20 - 30MB/s) port on my Dell G15 5515 gave significantly different results.

128GB Kingston Exodia (non-M) , USB A
1TB Kingston MAX, USB A

SSD-Tester's benchmarking show the Exodia top write speed is 26MB/s while the MAX is about 1GB/s.

Exodia on the USB 3.2 G1 transferred between 11 - 14MB/s while on the USB 2.0 port, transferred between 6 - 8MB/s.
MAX was getting 600MB/s on the USB 3.2 G1 port and 40MB/s on the USB 2.0 port.

What's causing the Exodia drive to have such terrible performance while the MAX got exactly what was expected? I'm curious...
 
xentr_thread_starter
Shadowmeph said:
For me it all takes a while its about time for me not what the supposed speeds say on paper hehe
Click to expand...
I'm just curious to know what's going on...why a flash drive isn't performing at speeds it's been benchmarked for. the size of the files I'm transferring are big, so I'm surprised it doesn't hit peak transfer speeds.
 
Sometimes the formatting (ntfs, exfat, GPT etc) and the allocation sizing can effect read/write performance. Also check if you have drive compression enabled or not. I'm sure there is lots more but that is what is immediately coming to mind.
 
xentr_thread_starter
Izerous said:
Sometimes the formatting (ntfs, exfat, GPT etc) and the allocation sizing can affect read/write performance. Also check if you have drive compression enabled or not. I'm sure there is lots more but that is what is immediately coming to mind.
Click to expand...
I'll check that out. whats the best format to have? FAT? exFAT? eNTFS? other?
 
NTFS + larger allocation sizing I "believe" is the correct approach with the size of files your talking about
 
There's also the fact that regardless of the interface speed, you may be limited to the speed of the Actual flash storage inside the media.

If you want a true comparison test between just the interfaces, maybe stick the same nvme drive in a 3.0 enclosure, then the same nvme in a 3.1 enclosure, then 3.2g2, USB4, etc.
 
You must log in or register to reply here.

Latest posts

xentr_legal_notice_title

xentr_legal_notice_description

Back
Top