Question Shared GPU/CPU memory

[gn842a]

I was looking at the memory allocation on my gpu and noticed that pretty much exactly 50% of the mobo's on board RAM is reserved for the gpu (shared gpu memory usage).

I was wondering whether this is straight formula--for example, if I put in just 8 gb RAM 4 gigs would be shared gpu memory usage--or whether there is some other allocation process. That the system reads the installed RAM and then follows some kind of rule for how much to give to shared usage.

Well I guess 50% is a rule. Was wondering if it's a more complicated rule than that. This is an AMD build.

thanks
Greg N

 

[popatim]

Win10 it's Shared Memory and it's always 50% afaik. Shared in the sense that either the gpu can use or or the cpu. It's not anything that is preventing the system from using it, it's just saving it until it's actually needed is all.

 

[gn842a]

Really? Win 10 gets to make the decision? I was sort of rooting for the processors in the gpu or the cpu. --Greg N