Solved what's my microSD card reader's speed?


Bob1212

Bob1212

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Windows 11 Pro 22H2

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    Will never again by a laptop without a backlit keyboard.
@Bob1212

CrystalDiskMark

About CrystalDiskMark CrystalDiskMark is a simple disk benchmark software. Download Standard Edition Aoi Edition Shizuku Edition System Requirements OS Windows XP/Vista/7/8/8.1/10/11Windows Server 2003/2008/2012/2016/2019/2022 Architecture x86/x64/ARM64 Key Features Important Notice -> FAQ Unit M...
crystalmark.info



It won't tell you the "reader's" speed. That would be in the reader's specs.
But it will compare various SD cards plugged into the reader, or compare the reader with SD card, to say a USB port with USB stick.

I compared a USB stick to an SSD.
The SSD was hooked to a SATA III port on the motherboard, and the USB stick was hooked to a USB 3.2 port.

0000 CrystalDiskMark.png
 

My Computers

System One System Two

  • OS
    Win 11 Home ♦♦♦22631.3447 ♦♦♦♦♦♦♦23H2
    Computer type
    PC/Desktop
    Manufacturer/Model
    Built by Ghot® [May 2020]
    CPU
    AMD Ryzen 7 3700X
    Motherboard
    Asus Pro WS X570-ACE (BIOS 4702)
    Memory
    G.Skill (F4-3200C14D-16GTZKW)
    Graphics Card(s)
    EVGA RTX 2070 (08G-P4-2171-KR)
    Sound Card
    Realtek ALC1220P / ALC S1220A
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    Dell U3011 30"
    Screen Resolution
    2560 x 1600
    Hard Drives
    2x Samsung 860 EVO 500GB,
    WD 4TB Black FZBX - SATA III,
    WD 8TB Black FZBX - SATA III,
    DRW-24B1ST CD/DVD Burner
    PSU
    PC Power & Cooling 750W Quad EPS12V
    Case
    Cooler Master ATCS 840 Tower
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    CM Hyper 212 EVO (push/pull)
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    300/300
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    Bitdefender Internet Security
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    Speakers: Klipsch Pro Media 2.1
  • Operating System
    Windows XP Pro 32bit w/SP3
    Computer type
    PC/Desktop
    Manufacturer/Model
    Built by Ghot® (not in use)
    CPU
    AMD Athlon 64 X2 5000+ (OC'd @ 3.2Ghz)
    Motherboard
    ASUS M2N32-SLI Deluxe Wireless Edition
    Memory
    TWIN2X2048-6400C4DHX (2 x 1GB, DDR2 800)
    Graphics card(s)
    EVGA 256-P2-N758-TR GeForce 8600GT SSC
    Sound Card
    Onboard
    Monitor(s) Displays
    ViewSonic G90FB Black 19" Professional (CRT)
    Screen Resolution
    up to 2048 x 1536
    Hard Drives
    WD 36GB 10,000rpm Raptor SATA
    Seagate 80GB 7200rpm SATA
    Lite-On LTR-52246S CD/RW
    Lite-On LH-18A1P CD/DVD Burner
    PSU
    PC Power & Cooling Silencer 750 Quad EPS12V
    Case
    Generic Beige case, 80mm fans
    Cooling
    ZALMAN 9500A 92mm CPU Cooler
    Mouse
    Logitech Optical M-BT96a
    Keyboard
    Logitech Classic Keybooard 200
    Internet Speed
    300/300
    Browser
    Firefox 3.x ??
    Antivirus
    Symantec (Norton)
    Other Info
    Still assembled, still runs. Haven't turned it on for 13 years?
Ghot said:
@Bob1212

CrystalDiskMark

About CrystalDiskMark CrystalDiskMark is a simple disk benchmark software. Download Standard Edition Aoi Edition Shizuku Edition System Requirements OS Windows XP/Vista/7/8/8.1/10/11Windows Server 2003/2008/2012/2016/2019/2022 Architecture x86/x64/ARM64 Key Features Important Notice -> FAQ Unit M...
crystalmark.info



It won't tell you the "reader's" speed. That would be in the reader's specs.
But it will compare various SD cards plugged into the reader, or compare the reader with SD card, to say a USB port with USB stick.

Like I compared a USB stick to an SSD. The SSD was hooked to a SATA III port on the motherboard, and the USB stick was hooked to a USB 3.2 port.

View attachment 43615
Click to expand...
Thanks. So then your USB 3.2 is unexpectedly (to me) darn fast.

But can't I get a general idea without running tests? My aim is to know roughly which microSD card to buy, so that I'm fairly well matching the card to the reader.
 

My Computer

System One

  • OS
    Windows 11 Pro 22H2
    Computer type
    Laptop
    Manufacturer/Model
    Dell Inspiron 6525 16"
    CPU
    AMD Ryzen 7 5825U apparently made in 2022
    Memory
    16GB
    Screen Resolution
    1920 x 1200
    Hard Drives
    512GB SSD
    Internet Speed
    up to 160Mbps
    Browser
    FF
    Antivirus
    Win11
    Other Info
    Will never again by a laptop without a backlit keyboard.
Bob1212 said:
Thanks. So then your USB 3.2 is unexpectedly (to me) darn fast.

But can't I get a general idea without running tests? My aim is to know roughly which microSD card to buy, so that I'm fairly well matching the card to the reader.
Click to expand...



That information will be in the specs.
That USB stick I bought said: 440MB/s

And it's easy to look up the USB 3.2 speed, USB port speeds are standardized.


en.wikipedia.org

SD card - Wikipedia

en.wikipedia.org en.wikipedia.org



Read mechanism
  • Standard: 12.5 MB/s
  • High-speed: 25 MB/s
  • UHS-I: 50 MB/s or 104 MB/s
  • UHS-II: 156 MB/s full-duplex, or 312 MB/s half-duplex
  • UHS-III: 312 MB/s full-duplex, or 624 MB/s half-duplex
  • Express: ≥ 985 MB/s full-duplex
Write mechanismSame as Read
 

My Computers

System One System Two

  • OS
    Win 11 Home ♦♦♦22631.3447 ♦♦♦♦♦♦♦23H2
    Computer type
    PC/Desktop
    Manufacturer/Model
    Built by Ghot® [May 2020]
    CPU
    AMD Ryzen 7 3700X
    Motherboard
    Asus Pro WS X570-ACE (BIOS 4702)
    Memory
    G.Skill (F4-3200C14D-16GTZKW)
    Graphics Card(s)
    EVGA RTX 2070 (08G-P4-2171-KR)
    Sound Card
    Realtek ALC1220P / ALC S1220A
    Monitor(s) Displays
    Dell U3011 30"
    Screen Resolution
    2560 x 1600
    Hard Drives
    2x Samsung 860 EVO 500GB,
    WD 4TB Black FZBX - SATA III,
    WD 8TB Black FZBX - SATA III,
    DRW-24B1ST CD/DVD Burner
    PSU
    PC Power & Cooling 750W Quad EPS12V
    Case
    Cooler Master ATCS 840 Tower
    Cooling
    CM Hyper 212 EVO (push/pull)
    Keyboard
    Ducky DK9008 Shine II Blue LED
    Mouse
    Logitech Optical M-100
    Internet Speed
    300/300
    Browser
    Firefox (latest)
    Antivirus
    Bitdefender Internet Security
    Other Info
    Speakers: Klipsch Pro Media 2.1
  • Operating System
    Windows XP Pro 32bit w/SP3
    Computer type
    PC/Desktop
    Manufacturer/Model
    Built by Ghot® (not in use)
    CPU
    AMD Athlon 64 X2 5000+ (OC'd @ 3.2Ghz)
    Motherboard
    ASUS M2N32-SLI Deluxe Wireless Edition
    Memory
    TWIN2X2048-6400C4DHX (2 x 1GB, DDR2 800)
    Graphics card(s)
    EVGA 256-P2-N758-TR GeForce 8600GT SSC
    Sound Card
    Onboard
    Monitor(s) Displays
    ViewSonic G90FB Black 19" Professional (CRT)
    Screen Resolution
    up to 2048 x 1536
    Hard Drives
    WD 36GB 10,000rpm Raptor SATA
    Seagate 80GB 7200rpm SATA
    Lite-On LTR-52246S CD/RW
    Lite-On LH-18A1P CD/DVD Burner
    PSU
    PC Power & Cooling Silencer 750 Quad EPS12V
    Case
    Generic Beige case, 80mm fans
    Cooling
    ZALMAN 9500A 92mm CPU Cooler
    Mouse
    Logitech Optical M-BT96a
    Keyboard
    Logitech Classic Keybooard 200
    Internet Speed
    300/300
    Browser
    Firefox 3.x ??
    Antivirus
    Symantec (Norton)
    Other Info
    Still assembled, still runs. Haven't turned it on for 13 years?
Ghot said:
That information will be in the specs.

Click to expand...


Well, my first move was to look in Device Manager, but I don't see the card reader there.
The only reason I'd mentioned USB was because I was guessing that USB would be slower than a card reader, if the card reader is directly tied into the main Bus. [I can't seem to reply without it coming out in bold. Sorry. I'll wrestle with it tomorrow.]

 

My Computer

System One

  • OS
    Windows 11 Pro 22H2
    Computer type
    Laptop
    Manufacturer/Model
    Dell Inspiron 6525 16"
    CPU
    AMD Ryzen 7 5825U apparently made in 2022
    Memory
    16GB
    Screen Resolution
    1920 x 1200
    Hard Drives
    512GB SSD
    Internet Speed
    up to 160Mbps
    Browser
    FF
    Antivirus
    Win11
    Other Info
    Will never again by a laptop without a backlit keyboard.
Those speeds in post #4 are maximum expected speeds for various SD card types.
There will be slight variations due to manufacturing.

As for which type of SD card you have... it's usually written on the SD card.


If you look up your SD card on Amazon, it will generally list a speed.

As for the reader, find it's specs at Amazon or the manufacturer... it should also list which SD card speeds it can make use of.
 

My Computers

System One System Two

  • OS
    Win 11 Home ♦♦♦22631.3447 ♦♦♦♦♦♦♦23H2
    Computer type
    PC/Desktop
    Manufacturer/Model
    Built by Ghot® [May 2020]
    CPU
    AMD Ryzen 7 3700X
    Motherboard
    Asus Pro WS X570-ACE (BIOS 4702)
    Memory
    G.Skill (F4-3200C14D-16GTZKW)
    Graphics Card(s)
    EVGA RTX 2070 (08G-P4-2171-KR)
    Sound Card
    Realtek ALC1220P / ALC S1220A
    Monitor(s) Displays
    Dell U3011 30"
    Screen Resolution
    2560 x 1600
    Hard Drives
    2x Samsung 860 EVO 500GB,
    WD 4TB Black FZBX - SATA III,
    WD 8TB Black FZBX - SATA III,
    DRW-24B1ST CD/DVD Burner
    PSU
    PC Power & Cooling 750W Quad EPS12V
    Case
    Cooler Master ATCS 840 Tower
    Cooling
    CM Hyper 212 EVO (push/pull)
    Keyboard
    Ducky DK9008 Shine II Blue LED
    Mouse
    Logitech Optical M-100
    Internet Speed
    300/300
    Browser
    Firefox (latest)
    Antivirus
    Bitdefender Internet Security
    Other Info
    Speakers: Klipsch Pro Media 2.1
  • Operating System
    Windows XP Pro 32bit w/SP3
    Computer type
    PC/Desktop
    Manufacturer/Model
    Built by Ghot® (not in use)
    CPU
    AMD Athlon 64 X2 5000+ (OC'd @ 3.2Ghz)
    Motherboard
    ASUS M2N32-SLI Deluxe Wireless Edition
    Memory
    TWIN2X2048-6400C4DHX (2 x 1GB, DDR2 800)
    Graphics card(s)
    EVGA 256-P2-N758-TR GeForce 8600GT SSC
    Sound Card
    Onboard
    Monitor(s) Displays
    ViewSonic G90FB Black 19" Professional (CRT)
    Screen Resolution
    up to 2048 x 1536
    Hard Drives
    WD 36GB 10,000rpm Raptor SATA
    Seagate 80GB 7200rpm SATA
    Lite-On LTR-52246S CD/RW
    Lite-On LH-18A1P CD/DVD Burner
    PSU
    PC Power & Cooling Silencer 750 Quad EPS12V
    Case
    Generic Beige case, 80mm fans
    Cooling
    ZALMAN 9500A 92mm CPU Cooler
    Mouse
    Logitech Optical M-BT96a
    Keyboard
    Logitech Classic Keybooard 200
    Internet Speed
    300/300
    Browser
    Firefox 3.x ??
    Antivirus
    Symantec (Norton)
    Other Info
    Still assembled, still runs. Haven't turned it on for 13 years?
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