[SOLVED] dual vs single memory question

[jason2234]

I have a HP Envy x369 laptop that has 4gb soldered memory and 4gb removable memory to give 8gb ram. It has a dedicated MX150 GFX that has 4gb ram.

I was thinking of replacing the removable module with a 16gb module to give 20gb memory.

My question is does this then drop the machine down to single channel or would I get 8gb dual channel and 12gb single channel?
I am making an assumption also that the MX150 GFX has its own 4gb cache of memory to use and doesn't borrow from the system ram.
I want to improve performance memory wise but most of all i'm just curious how it works

 

[Traditore]

It will be single channel. BTW, are you sure your memory works 2channel now? Doubt that. No real-world benefit of dual channel anyway. So just get as much RAm as you want and you'll be fine.

 

[jason2234]

my thinking was that 20gb would be better than 8gb dual channel regardless as its two and a half times more.
Whats the best way to find out if its currently running dual channel?

 

[Traditore]

my thinking was that 20gb would be better than 8gb dual channel regardless as its two and a half times more.
Whats the best way to find out if its currently running dual channel?

download CPU-Z utility, it will show info about memory. Like this: