eMMC vs SSD – Which Is Most Preferred


eMMC vs SSD -Which One Is Best!!!

eMMC vs SSD : eMMC cards have a medium price and a medium performance level between HDD and SSD. The small size and lower price of eMMCs make them well suited for mid-range laptops, smaller consumer devices, and of course small sensors and control devices.

Unlike other types of flash memory, both eMMC and SSDs can be started. This feature enables laptop manufacturers to create laptops with internal flash memory. Although hard drives still make up the majority of the internal storage in notebooks, manufacturers with SSDs and eMMCs can offer more powerful notebooks that are also lighter and thinner.

Most SSDs have the highest performance and cost, although eMMC speeds are the same as SATA SSDs.

Flash and SSD are closely related, but neither are they. Although SSDs mostly use flash storage, especially NAND, they are not limited to flash. Before 2009, most SSDs used volatile DRAM memory. It has largely replaced NAND with its ICs and persistent storage.

However, SSD and flash are so closely related that SSD can be referred to as flash storage and compared to other types of flash devices. USB sticks and SD cards are inexpensive and easy to manufacture. Memory chips for USB sticks are located on a circuit board. The flash drive also has a USB interface and a basic controller. SD cards are also simple and contain a flash memory chip on a circuit board and an SD controller.


SSDs are much more advanced than these types of flash storage devices, which is why they are popular in corporate data centers. Rather than directing reads and writes to a single chip, parallel read / write operations distribute operations across multiple NAND flash chips for much higher performance.

Another advanced feature is wear leveling. The firmware selectively compensates for data writes through flash memory chips to prevent individual chips from wearing out. SSDs also support new features like TRIM, which protect the SSD from overcapacity by physically erasing the file data from the chip when the user deletes the file, which increases the performance of the disk. Unlike hard drives, which are simply overwritten, the SSD must erase a block for writing. By automatically erasing data from a chip, the sector is empty and immediately ready for a new write process.

In addition, the SSD interface is generally faster than the interfaces available for flash storage devices. eMMC can keep up with the speed of SATA interfaces, but SSD interfaces are generally faster. The popularity of SSDs is also driving the development of fast interfaces, form factors such as M.2, file systems, and protocols such as NVM Express (NVMe).

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eMMC Speed Performance

Embedded MultiMediaCard (eMMC) is an internal data storage card, built with flash storage. Its small size and low price make it a popular choice for storing data on portable devices such as smartphones, tablets, cameras, and laptops. Users can generally increase their storage capacity by adding removable Secure Digital (SD) cards.

However, despite its wearable device credentials, eMMC is not limited to consumer devices. The same features that make it popular for phones and cameras also make it popular for the small sensors and monitoring devices that are at the heart of the Internet of Things.


The 5.1 eMMC storage standard offers transfer speeds of up to 400MB / s. This is roughly equivalent to the higher transfer speeds of the SATA SSD, and clearly fast enough for commercial applications. Each new generation has seen an eMMC upgrade in terms of performance.

However, performance is not measured simply by transfer speeds, but also by the number of memory gates. The more doors, the faster the storage device can process data. EMMC storage generally has fewer memory sockets than standard SSDs. This more limited transfer performance reduces the performance of the eMMC workload, making it a limited replacement for main memory. However, it can create additional virtual memory when it acts as a page store.

What is SSD Good For?

An SSD is a storage device with no moving mechanical parts that houses a controller and flash memory. SSDs use the same external form factors as HDDs because they are marketed as hard drive replacements. Using the same form factors does not require massive reengineering of storage arrays at the factory or data center level.

Since SSDs have no moving parts, they run significantly quieter, have faster access times and lower power consumption than hard drives. And the best reliability developments have made SSDs as durable as hard drives.

Given these pros and cons, SSDs are great options for heavy business workloads such as highly transactional databases, web streaming, and dense environments like VDI.


The fast read and write speeds of SSDs also allow them to process data at the lightning-fast speeds modern businesses need today. In fact, companies can hardly rely on the slowest hard drive for their best data usage.

While the above use cases are major SSD points in business, it will increase the prices of storage media purchase and require more SSD swaps than hard drive media. Are SSDs worth the extra time and cost?

In high-performance environments, yes. Since the SSD form factors are the same as the hard drives, replacing the hard drive with an SSD isn’t a major technological upgrade. Due to their higher performance and falling prices, SSDs continue to be a competitive storage medium in the data center.

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