eMMC storage

[Rocket3]

I've seen some budget laptops with eMMC 32 GB as storage instead of SSD or HDD.

I know eMMC is slower than SSD, and uses less power than HDD.

Can ppl who have used laptop with eMMC storage before share their experience? How fast is eMMC compared to a laptop 2.5" HDD?

 

[Intrinion]

Hi stay tuned.
Have some interesting results on hand

Here's the first batch of results - did a 1 run quick cold boot and shut down.

Sent from Samsung SM-G920I using GAGT

 

[Intrinion]

Crystal Disk Mark 5.1.0
Samsung MCG8GC 64GB EMMC

Tested on my Asus T100CHI: Atom Z3775, 2GB of Ram, Windows 10 Home - 32bit

 

[Intrinion]

Crystal Disk Mark 5.1.0
Hitachi 5K1000 1TB, 5400RPM

Tested on my HP Envy 15: i7 4700MQ, 8GB of Ram, Windows 10 Home - 64bit

 

[Intrinion]

Crystal Disk Mark 5.1.0
Hitachi Z5K500 500TB, 5400RPM HDD

Crystal Disk Mark 5.1.0
Sandisk U100 24GB SSD


Tested on my Asus S46CB: i5 3337U, 4GB of Ram, Windows 10 Home - 64bit

 

[Intrinion]

Quick Analysis on the 4 impromptu readings:

Overall it can be seen that the SSD - even a "sub standard one" blows the competition away with extremely good read speeds - approx >4 times as compared to an OEM 5400RPM HDDS of various storage capacities and close to equal write speeds with conventional hard disks.

As for the eMMC, it's no doubt slower than the SSD in terms of read speeds, but is still a reasonable 2 times faster than a conventional HDD.
Of course the gap would be lowered if a higher RPM HDD is tested against the SSD but it is still a reasonable performance for devices that are meant for portability and long battery life.

Having said that, those are bench mark performances and benchmark performances do not exactly reflect 1:1 in real life - but it is safe to say that eMMC storage will perform as well or better than a HDD.

 

[Rocket3]

Thanks for the replies.
So, speed:
2.5" laptop HDD < eMMC < SSD

From what I remember reading, eMMC lacks some features present in SSD. Can't remember exactly, but wear levelling may be one feature.

 

[Rock-kun]

eMMC = embedded SD card, non-replaceable and non-upgradable.

I'll stay with proper SATA / M.2 STATA / M.2 PCIe SSDs. At least these are upgradable.