What Is Virtual RAM - GoTechTalk

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Saturday, October 30, 2021

What Is Virtual RAM

What Is Virtual RAM

Nowadays Virtual RAM is available on all recent phones. It comes with different names by different brands Eg VIVO - Extended RAM, realme - DRE & Samsung - RAM+

You can extend the RAM by 2GB, 4GB, 5GB & 7GB. Yes, realme’s latest GT Neo 2 has a 7GB RAM extension and today, I’m going to tell you about Virtual RAM. It’s basically virtual RAM but what exactly is it?

You already know that it uses a part of storage as RAM but there’s more than just using storage. I’ll give you an example & tell you in a simple language. You have 10 apps running in the memory of a 6GB RAM phone & you’re getting 2GB of extra virtual RAM. Then that 6GB RAM has been consumed by 10 apps so your 6GB RAM has been completely loaded. So this 2GB Virtual RAM is created in your storage/ROM through your phone’s software, which is kind of a partition where you can put your running apps in it. Many times, people think that when 6GB RAM has been fully loaded & if they open a new app then its RAM requirement will be shifted to virtual RAM. No! It doesn’t happen that way.
The already running apps in the RAM will be decided by Android OS, on which apps are to be shifted through software. Eg) If your Facebook/YouTube that are continuously refreshed in background won’t be shifted to virtual RAM. But your apps like Calculator, if it’s running in the background or any other static apps that don’t get refreshed continuously, they’ll be shifted to virtual RAM & due to that the actual RAM’s place will be replaced by a
There are many advantages & disadvantages to it. Like I said, the biggest disadvantage is the normal apps that you use like Facebook that continuously refreshes or YouTube that gets refreshed these will never move to virtual RAM. There are some specific apps that can go that are static. So not all apps will be helped by virtual RAM.

There’s another thing, firstly, this isn’t a new concept. It’s an old concept in computers & is also called as "swap file handling memory" that’s now coming to smartphones. Secondly, it’s software based, meaning you can get virtual RAM through updates as well. So, if you don’t have it on your phone, you’ll get that feature via software update.
Interesting thing, the virtual RAMs available on 6GB/8GB/12GB RAM phones. The actual requirement should be in 3GB/4GB RAM phones, because their RAM are exhausted quickly.

And the biggest disadvantage, which is why many people call it gimmicky, is because RAM’s read/write speed cannot be compared with storage. For a RAM the read/write speeds are upto 4GBps & if I talk about UFS2.1 storage type’s read/write speeds, they’re upto 2GBps. Meaning, even if your storage is the latest, it’ll give half the speed compared to RAM. So that thing can never be matched. But there are many mid-range phones with UFS 2.1/eMMC storage that come with virtual RAM, & their speeds are less than 1GBps. It’s sometimes 500-600Mbps & the RAM speeds are more than 4GBps, so imagine! Is there any use? I mean storage speeds can never match RAM speeds so it’s not going to be equivalent.
There’s a marginal benefit of virtual RAM but not more than that. That’s for sure. So in a line, if you’ve bought a 12GB RAM phone & an 8GB RAM phone with 4GB virtual RAM, it’ll never match. The 12GB RAM phone speeds in app opening & read/write speeds will never be the same with the 8GB+4GB RAM phone.

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