Windows 10: Windows 10 Pro RAM under-utilization and Shared GPU Memory Setting

I have a Razer Blade Pro 4k 2017 with 32 GB of RAM and a GTX 1080 8 GB Graphics Card running Windows 10 Pro.


I use this computer to do 3D CAD work. My CAD software Sketchup Pro 2020 is more more CPU and RAM intensive than GPU intensive.


When working with large files, my CAD software begins to lag heavily as I approach 16 GB of used RAM with 16 GB free. If I close down other programs to free up some of the used RAM, it starts behaving faster.


At first I thought my second set of 16 GB of RAM must not be working, but I ran a memory test and it showed no errors. I also ran a severe load test, and as I opened many programs with large files, the 1st 16 GB of RAM would be quickly utilized, while the second seemed extremely hesitant to be utilized. It almost felt like a logarithmic scale was being applied, where If I opened one large file in a program it would use X amount of RAM, but then opening a 2nd large file would use only X/2, when opening a 3rd large file it would be like X/3 and so on. Of course as I'm doing this the computer begins to lag, but with still plenty of free RAM available. Eventually after opening up an insane number of programs the 2nd set of 16 GB allows itself to be used up.


The overall behavior feels as though Windows is trying to leave the 2nd set of RAM as free as possible even at the cost of slowing the overall system down. In this computer which has hardwired RAM and on another desktop computer where I can change how much RAM is installed, I noticed that Windows sets the "Shared GPU Memory" to half the available memory and it does this whether or not a discrete graphics card is installed. And although I've read that this should not effect performance with Windows giving priority to the CPU for the available RAM, it seems the exact opposite is true.


It seems Windows prioritizes keeping the second half of your RAM as free as possible so that it is available for the GPU if needed. So in the end if you want X GB of usable RAM, it seems you need to install 2X GB.


Can anyone that has a lot of RAM and runs apps that use a good portion of that RAM let me know if you are experiencing something similar?


As far as I can tell there does not seem to be a user-accessible way to change the Shared GPU Memory Setting. If anyone can enlighten me please do. Otherwise, I'd like to request Microsoft add the ability to turn that off when a discrete graphics card is installed and let users get the most out of their RAM.


Thanks

:)

 

to increase shared gpu memory

I really want your help in this question rapidly laptop : dell inspiron 15 3576 win 10 pro cpu : i7-8550u ram : 8 gb 2nd gpu : amd radeon 520 my problem is that I am playing a
gme requiring high hardware performance i shot task manager during play and i found that vram of radeon gpu is 2 gb can increase up to nearly 6 gb so there is about 4 gb shared gpu memory . i want to know how I can use this shared gpu . please answer me rapidly
and if you say i cannot allocate part of physical memory to vram on my dell inspiron (as i am gonna buy another extra 8 gb ram ) so tell me how i can get benefit of this shared memory because it is not put here for joke and dell company installed an external
gpu in their laptops which can get shared memory they didnt do that for joke also so for sure this shared memory can be used .please understand me and anwer me . thanks

 

Decrease the amount of RAM used as Shared GPU Memory in Windows 10

System: AsRock X99M Extreme4

OS: Windows 10 Pro 64 bit

CPU: Intel(R) Core(TM) i7-5930K CPU @ 3.50GHz

RAM: 64GB

Graphics: NVidia GeForce GTX 1080

Dedicated Video Memory: 8GB

System Video Memory: 0

Shared Video Memory: 31GB

Is there a way to change how much RAM windows 10 allocates as shared video memory? Specifically, I'd like to change it from 31GB to 8GB or 0GB.

Any help would be much appreciated.

 

Change the amount of RAM used as Shared GPU Memory in Windows 10

System: Gigabyte Z97-D3H-CF (Custom Desktop PC)

OS: Windows 10 Pro 64bits (Fall Creators Update)

CPU: Intel Core i7 4790 @ 3.60GHz (4 cores - 8 threads)

RAM: 32GB Dual Channel

Graphics: NVidia GeForce GTX 1080 (Founder's Edition)

Dedicated Video Memory: 8GB

System Video Memory: 0

Shared Video Memory: 16GB

allocating half my RAM for shared video memory when the card has 8GB of dedicated video memory seems like overkill to me. Is there a way to change how much RAM windows 10 allocates as shared video memory? Specifically, I'd like to change it from 16GB to
8GB.

Any help would be much appreciated.