10 Important Difference Between MMC and SD Card (Tabular Form)


Before buying a memory card for your devices, it is extremely important to have an understanding about the difference between MMC and SD card.

SD and MMC cards are utilized for storage in a portable device such as digital cameras, video game consoles, cellular phones, set-top boxes etc.). They come in a variety of sizes, capacities, and applications.

MMC is a compact memory card standard created by Siemens in collaboration with SanDisk, whereas SD was created by SanDisk, Panasonic, and Toshiba.

SD stands for secure digital, while MMC stands for multimedia card.

What Is SD Card?

Secure Digital (SD) is a storage format that uses flash (non-volatile) memory cards. An improved version of MMC was used to create SD cards. Standard SD cards come in a variety of storage capacities (ranging from 152 MB to 2 GB).

SD cards with high capacity (SDHC) can contain massive amounts of data, ranging from 4 GB to 32 GB.

The latest iteration of the SD card, the eXtended Capacity SD card (SDXC), can store up to 2 TB (terabytes) of data as of 2009.

Micro SD cards are the tiniest type of SD card.

What is MMC card?

MMC stands for Multi Media Card and is a flash memory card standard. The capacity of most MMC cards ranges from 152 MB to 32 GB.

There are four different varieties of MMC on the market. They are MMC, RS-MMC, MMC PLUS, and metal extender.

MMC originally had a 1-bit serial interface, but newer variants of the specification support 4 or 8-bit transfers.

Many devices that accept Secure Digital (SD) cards can use MMC.

Although embedded MMC cards (eMMC) are still frequently utilized in consumer electronics products as the primary form of integrated storage in portable devices as of 2018, few businesses have built-in MMC slots (more typically SD cards).

Difference Between MMC And SD Card: MMC VS SD Card

MMCBasis Of ComparisonSD Card
Multimedia CardStands forSecure Digital Card
Up to 128 GBCapacity2GB
Siemens AG and SanDisk, introduced in 1997.Built ByMatsushita, SanDisk and Toshiba in 1999.
MMC, MMC Plus, SecureMMC – 24 mm x 32 mm x 1.4 mm, RS-MMC – 24 mm x 18 mm x 1.4 mm, MMC Micro – 14 mm × 12 mm × 1.1 mmDimensions32 mm x 24 mm x 2.1 mm
Reduced-Size MultiMediaCard (RS-MMC), Dual Voltage MMC Card (DV-MMC), MMC plus, MMC mobile, MMC Micro and MMC Secure TypesStandard SD, Mini SD and Micro SD
Car navigation systems, Cellular phones, eBooks, PDAs, Smartphones, and Digital Cameras, Music Players, and Video Camcorders, and Personal Computers. ApplicationDigital cameras and Mobile phones
Compatible with MMC as well as SD Card slotsCompatibilityCompatible with SD Card slots.
FAT16File systemFAT16


The key difference between MMC and SD card is that the SD card can only be used if the device has an SD slot and is compatible with it, but MMC must have its own slot in order to be used.

SD card can hold a data of about 2GB whereas mmc holds 128GB. SD cards transfer data at a rate of 20 megabytes per second, while MMC cards transfer data at 8 megabytes per second. SD cards are found in mobile phones and digital cameras.

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