Overclock.net › Forums › Components › Hard Drives & Storage › Micro SD, SD-HC, SD-XC differences explained.
New Posts  All Forums:Forum Nav:

Micro SD, SD-HC, SD-XC differences explained.

post #1 of 12
Thread Starter 

I’ve been looking at Micro SD memory cards and had no idea what the difference was between them. I thought I’d post up some details for anyone looking at purchasing their first, or next Micro SD card, hope it helps.

HC - high capacity
XC - eXtended capacity

Micro SD is 2 GB and below.
Micro SD - HC is between 4 and 32 GB.
Micro SD - XC is 32 GB to 2 TB


Here’s an article on the Micro SD - XC, these are out of reach for most humans at the moment.
http://www.micro-sdxc.com/


The micro SD – HC also has classifications relating to its data transfer rate

Class 2 - 2MB/sec. minimum data transfer rate

Class 4 - 4MB/sec. minimum data transfer rate

Class 6 - 6MB/sec. minimum data transfer rate

Class 10 – 10MB/sec. minimum data transfer rate



What are the applications for Speed Class?

Class 2 : H.264 video recording, MPEG-4, MPEG-2 video recording
Class 4: MEPG-2 (HDTV) video recording, DSC consecutive shooting
Class 6: Mega-pixel DSC consecutive shooting, professional video camera

From The SD Association

http://www.sdcard.org/home/

Micro SD Cards are also backward compatible with SD card devices. by using an appropriate adapter.


Edited by mr soft - 3/4/13 at 1:05am
SoulStorm Brew
(11 items)
 
El Niño
(11 items)
 
 
CPUMotherboardGraphicsRAM
A8-6500T GA-F2A88XN-WIFI Sapphire 7750  2 x 2g Crucial balistix 1866 
Hard DriveCoolingOSMonitor
Sammy 830 128g + Toshiba 1T , F3-1T, ext Heavily modded Skythe Kozuti + gentle typhoon &... LG Flatron E2250V  
PowerCaseMouse
420w Tacens radix IV  CM elite 360 Loves to be touched  
CPUMotherboardGraphicsRAM
Athlon 5350 ASUS AM1I-A itx HD 8400 2 x 2gig Crucial ballistix tactical 1600 
Hard DriveCoolingOSMonitor
Sammy 830 64g + Toshiba 750g 2.5  stock + 120mm Skythe slipstream 32" LG 
KeyboardPowerCase
Logitec 250 60w brick Akasa Crypto mini ITX 
  hide details  
Reply
SoulStorm Brew
(11 items)
 
El Niño
(11 items)
 
 
CPUMotherboardGraphicsRAM
A8-6500T GA-F2A88XN-WIFI Sapphire 7750  2 x 2g Crucial balistix 1866 
Hard DriveCoolingOSMonitor
Sammy 830 128g + Toshiba 1T , F3-1T, ext Heavily modded Skythe Kozuti + gentle typhoon &... LG Flatron E2250V  
PowerCaseMouse
420w Tacens radix IV  CM elite 360 Loves to be touched  
CPUMotherboardGraphicsRAM
Athlon 5350 ASUS AM1I-A itx HD 8400 2 x 2gig Crucial ballistix tactical 1600 
Hard DriveCoolingOSMonitor
Sammy 830 64g + Toshiba 750g 2.5  stock + 120mm Skythe slipstream 32" LG 
KeyboardPowerCase
Logitec 250 60w brick Akasa Crypto mini ITX 
  hide details  
Reply
post #2 of 12
Great stuff. Now how does this apply to when someone takes a picture or is this just transfering files from the SD card?
The Cleaner
(14 items)
 
  
CPUMotherboardGraphicsRAM
I7 980X UD-9 GTX 480 SLI EK BLOCKS Corsair Dom GT 2000MHZ TR3X 
Hard DriveOSMonitorKeyboard
Lots of UBER PR0N GIGS W7 H223BHMID Main Screen U2410x3 (storage for now) Filco Majestice Linear R 
PowerCaseMouseAudio
Corsair 1000HX HA a JOKE RATz9 Titanium HD 
  hide details  
Reply
The Cleaner
(14 items)
 
  
CPUMotherboardGraphicsRAM
I7 980X UD-9 GTX 480 SLI EK BLOCKS Corsair Dom GT 2000MHZ TR3X 
Hard DriveOSMonitorKeyboard
Lots of UBER PR0N GIGS W7 H223BHMID Main Screen U2410x3 (storage for now) Filco Majestice Linear R 
PowerCaseMouseAudio
Corsair 1000HX HA a JOKE RATz9 Titanium HD 
  hide details  
Reply
post #3 of 12
Depending on the camera, a faster card means less time before you can snap a second picture.
..a
Galadium
(13 items)
 
Raptor
(13 items)
 
 
CPUMotherboardGraphicsRAM
i7 965 Gigabyte X58A-UD3R EAH-4350 Silent 6x4GB GSkill Ripjaw 
Hard DriveOptical DriveOSMonitor
X25M 80GB + 2x7200.11 500GB + WD 1TB Green Samsung OEM Win7 professional 64-bit Dell 3008WFP 
PowerCase
Antec TP-750 Antec 300 
CPUMotherboardGraphicsRAM
i7 920 Asus P6T Deluxe GTX 260 6x2GB Patriot PC3-12800 
Hard DriveOptical DriveOSMonitor
X25M 80GB, Samsung 1TB EcoGreen, others Pioneer DVR-213LS Vista x64 Dell W3008WFP 
PowerCase
Antec TPC-850 Antec 1200 
CPUMotherboardGraphicsRAM
Q6600 333x9 ga-ep45-ud3p FX5500 4 x 2GB DDR2 800MHz 
Hard DriveOptical DriveOSMonitor
Many and varied Samsung OEM SH-S223 Win7 Enterprise 64-bit kvm to Acer X241W 
PowerCase
Antec Basic 500 Antec 300 mod'd 
  hide details  
Reply
Galadium
(13 items)
 
Raptor
(13 items)
 
 
CPUMotherboardGraphicsRAM
i7 965 Gigabyte X58A-UD3R EAH-4350 Silent 6x4GB GSkill Ripjaw 
Hard DriveOptical DriveOSMonitor
X25M 80GB + 2x7200.11 500GB + WD 1TB Green Samsung OEM Win7 professional 64-bit Dell 3008WFP 
PowerCase
Antec TP-750 Antec 300 
CPUMotherboardGraphicsRAM
i7 920 Asus P6T Deluxe GTX 260 6x2GB Patriot PC3-12800 
Hard DriveOptical DriveOSMonitor
X25M 80GB, Samsung 1TB EcoGreen, others Pioneer DVR-213LS Vista x64 Dell W3008WFP 
PowerCase
Antec TPC-850 Antec 1200 
CPUMotherboardGraphicsRAM
Q6600 333x9 ga-ep45-ud3p FX5500 4 x 2GB DDR2 800MHz 
Hard DriveOptical DriveOSMonitor
Many and varied Samsung OEM SH-S223 Win7 Enterprise 64-bit kvm to Acer X241W 
PowerCase
Antec Basic 500 Antec 300 mod'd 
  hide details  
Reply
post #4 of 12
ah so you can do a frame my frame picture taken without i guess losing clarity of the file because of it being stored fast.

yeah its always depends on the end-user but great explanation.
The Cleaner
(14 items)
 
  
CPUMotherboardGraphicsRAM
I7 980X UD-9 GTX 480 SLI EK BLOCKS Corsair Dom GT 2000MHZ TR3X 
Hard DriveOSMonitorKeyboard
Lots of UBER PR0N GIGS W7 H223BHMID Main Screen U2410x3 (storage for now) Filco Majestice Linear R 
PowerCaseMouseAudio
Corsair 1000HX HA a JOKE RATz9 Titanium HD 
  hide details  
Reply
The Cleaner
(14 items)
 
  
CPUMotherboardGraphicsRAM
I7 980X UD-9 GTX 480 SLI EK BLOCKS Corsair Dom GT 2000MHZ TR3X 
Hard DriveOSMonitorKeyboard
Lots of UBER PR0N GIGS W7 H223BHMID Main Screen U2410x3 (storage for now) Filco Majestice Linear R 
PowerCaseMouseAudio
Corsair 1000HX HA a JOKE RATz9 Titanium HD 
  hide details  
Reply
post #5 of 12
Thread Starter 
Good points + rep
Original post updated with applications for Speed Class.
Also added class 6
SoulStorm Brew
(11 items)
 
El Niño
(11 items)
 
 
CPUMotherboardGraphicsRAM
A8-6500T GA-F2A88XN-WIFI Sapphire 7750  2 x 2g Crucial balistix 1866 
Hard DriveCoolingOSMonitor
Sammy 830 128g + Toshiba 1T , F3-1T, ext Heavily modded Skythe Kozuti + gentle typhoon &... LG Flatron E2250V  
PowerCaseMouse
420w Tacens radix IV  CM elite 360 Loves to be touched  
CPUMotherboardGraphicsRAM
Athlon 5350 ASUS AM1I-A itx HD 8400 2 x 2gig Crucial ballistix tactical 1600 
Hard DriveCoolingOSMonitor
Sammy 830 64g + Toshiba 750g 2.5  stock + 120mm Skythe slipstream 32" LG 
KeyboardPowerCase
Logitec 250 60w brick Akasa Crypto mini ITX 
  hide details  
Reply
SoulStorm Brew
(11 items)
 
El Niño
(11 items)
 
 
CPUMotherboardGraphicsRAM
A8-6500T GA-F2A88XN-WIFI Sapphire 7750  2 x 2g Crucial balistix 1866 
Hard DriveCoolingOSMonitor
Sammy 830 128g + Toshiba 1T , F3-1T, ext Heavily modded Skythe Kozuti + gentle typhoon &... LG Flatron E2250V  
PowerCaseMouse
420w Tacens radix IV  CM elite 360 Loves to be touched  
CPUMotherboardGraphicsRAM
Athlon 5350 ASUS AM1I-A itx HD 8400 2 x 2gig Crucial ballistix tactical 1600 
Hard DriveCoolingOSMonitor
Sammy 830 64g + Toshiba 750g 2.5  stock + 120mm Skythe slipstream 32" LG 
KeyboardPowerCase
Logitec 250 60w brick Akasa Crypto mini ITX 
  hide details  
Reply
post #6 of 12
Never heard of SD-XC before... awesome.
Deep Blood
(16 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core i7 920 D0 (Batch # 3901A240) Foxconn X58 Blood Rage (non-GTI) eVGA GeForce GTX670 2GB 6GB Corsair Dominator 1.6GHz TR3X6G1600C8D Rev 3.2 
Hard DriveOptical DriveCoolingOS
Samsung SSD830 128GB / Seagate 640GB+1TB+2TB Samsung SH-S223Q 22X XTTH | OCZ Freeze | 9G1212H1011 Windows 7 Ultimate x64 SP1 
MonitorKeyboardPowerCase
Dell U2410f (rev. A02) OCN-Ducky DK-9008 + Ideazon FANG gamepad Antec HCPP-850 CaseLabs SM8 
MouseMouse PadAudioOther
Logitech G500 Sharkoon 1337 Asus Xonar DX Lifecam Cinema/Precision analog headset 
  hide details  
Reply
Deep Blood
(16 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core i7 920 D0 (Batch # 3901A240) Foxconn X58 Blood Rage (non-GTI) eVGA GeForce GTX670 2GB 6GB Corsair Dominator 1.6GHz TR3X6G1600C8D Rev 3.2 
Hard DriveOptical DriveCoolingOS
Samsung SSD830 128GB / Seagate 640GB+1TB+2TB Samsung SH-S223Q 22X XTTH | OCZ Freeze | 9G1212H1011 Windows 7 Ultimate x64 SP1 
MonitorKeyboardPowerCase
Dell U2410f (rev. A02) OCN-Ducky DK-9008 + Ideazon FANG gamepad Antec HCPP-850 CaseLabs SM8 
MouseMouse PadAudioOther
Logitech G500 Sharkoon 1337 Asus Xonar DX Lifecam Cinema/Precision analog headset 
  hide details  
Reply
post #7 of 12
Quote:
Originally Posted by eflyguy View Post
Depending on the camera, a faster card means less time before you can snap a second picture.
..a
Don't most cameras have an internal memory buffer?
Once again...
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7 920 [4.28GHz, HT] Asus P6T + Broadcom NetXtreme II VisionTek HD5850 [900/1200] + Galaxy GT240 2x4GB G.Skill Ripjaw X [1632 MHz] 
Hard DriveOSMonitorKeyboard
Intel X25-M 160GB + 3xRAID0 500GB 7200.12 Window 7 Pro 64 Acer H243H + Samsung 226BW XARMOR-U9BL  
PowerCaseMouseMouse Pad
Antec Truepower New 750W Li Lian PC-V2100 [10x120mm fans] Logitech G9 X-Trac Pro 
  hide details  
Reply
Once again...
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7 920 [4.28GHz, HT] Asus P6T + Broadcom NetXtreme II VisionTek HD5850 [900/1200] + Galaxy GT240 2x4GB G.Skill Ripjaw X [1632 MHz] 
Hard DriveOSMonitorKeyboard
Intel X25-M 160GB + 3xRAID0 500GB 7200.12 Window 7 Pro 64 Acer H243H + Samsung 226BW XARMOR-U9BL  
PowerCaseMouseMouse Pad
Antec Truepower New 750W Li Lian PC-V2100 [10x120mm fans] Logitech G9 X-Trac Pro 
  hide details  
Reply
post #8 of 12
Quote:
Originally Posted by DuckieHo View Post
Don't most cameras have an internal memory buffer?
yes, but if shooting in continuous it will fill up faster if the images are being written out to a slower card. You might be able to shoot 20 frames continuous with a fast card as the buffer becomes available again quicker, but if your card is slow you might only make it to 15 frames before the buffer is filled and you have to drop some frames.

(hope this makes sense...)
post #9 of 12
Quote:
Originally Posted by DuckieHo View Post
Don't most cameras have an internal memory buffer?
Yup, but unless you're in continuous mode, it won't allow another pic to be taken unless it's finished writing from that buffer out to storage - at least with the 2 Sony's, 1 Fuji, 1 Pentax, and finally 4 different Canon's I've owned.
..a
Galadium
(13 items)
 
Raptor
(13 items)
 
 
CPUMotherboardGraphicsRAM
i7 965 Gigabyte X58A-UD3R EAH-4350 Silent 6x4GB GSkill Ripjaw 
Hard DriveOptical DriveOSMonitor
X25M 80GB + 2x7200.11 500GB + WD 1TB Green Samsung OEM Win7 professional 64-bit Dell 3008WFP 
PowerCase
Antec TP-750 Antec 300 
CPUMotherboardGraphicsRAM
i7 920 Asus P6T Deluxe GTX 260 6x2GB Patriot PC3-12800 
Hard DriveOptical DriveOSMonitor
X25M 80GB, Samsung 1TB EcoGreen, others Pioneer DVR-213LS Vista x64 Dell W3008WFP 
PowerCase
Antec TPC-850 Antec 1200 
CPUMotherboardGraphicsRAM
Q6600 333x9 ga-ep45-ud3p FX5500 4 x 2GB DDR2 800MHz 
Hard DriveOptical DriveOSMonitor
Many and varied Samsung OEM SH-S223 Win7 Enterprise 64-bit kvm to Acer X241W 
PowerCase
Antec Basic 500 Antec 300 mod'd 
  hide details  
Reply
Galadium
(13 items)
 
Raptor
(13 items)
 
 
CPUMotherboardGraphicsRAM
i7 965 Gigabyte X58A-UD3R EAH-4350 Silent 6x4GB GSkill Ripjaw 
Hard DriveOptical DriveOSMonitor
X25M 80GB + 2x7200.11 500GB + WD 1TB Green Samsung OEM Win7 professional 64-bit Dell 3008WFP 
PowerCase
Antec TP-750 Antec 300 
CPUMotherboardGraphicsRAM
i7 920 Asus P6T Deluxe GTX 260 6x2GB Patriot PC3-12800 
Hard DriveOptical DriveOSMonitor
X25M 80GB, Samsung 1TB EcoGreen, others Pioneer DVR-213LS Vista x64 Dell W3008WFP 
PowerCase
Antec TPC-850 Antec 1200 
CPUMotherboardGraphicsRAM
Q6600 333x9 ga-ep45-ud3p FX5500 4 x 2GB DDR2 800MHz 
Hard DriveOptical DriveOSMonitor
Many and varied Samsung OEM SH-S223 Win7 Enterprise 64-bit kvm to Acer X241W 
PowerCase
Antec Basic 500 Antec 300 mod'd 
  hide details  
Reply
post #10 of 12
Great Post!! helpful, clear, concise, and organized. Reason why I am looking because I am purchasing a new card at 32GB and HC is limited to 32GB and will be eventually replaced by XC.
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Hard Drives & Storage
Overclock.net › Forums › Components › Hard Drives & Storage › Micro SD, SD-HC, SD-XC differences explained.