[plug] Large RAM Onboard video VS video card & Chipset choice effects on desktop Linux virtualisation speeds?

[vegancaffeineaddict at gmail.com]

Hi Plug
Looking into a new pc got me wondering if my Idea of the perfect fast desktop Linux pc Virtualisation hardware setup was out of date. 

I see AMD specs showing 4K video from onboard video with some specs cautioning shared memory was limited to a max of 16gb(!).  Intel have a Core i9 CPU with onboard video 4K capable now but I can’t see the maximum RAM able to be allocated. 
(I don’t want the 4K just faster VMs)

I wonder about Chipset choices: 
- how the speed of virtual machines varies with different hardware setups
- if money otherwise put into a video card might be better on a cpu with shared video and extra ram (though they may even be cheaper to start with) and give faster VM throughput 
- if different software makes better use of architecture / chipset / memory / video ram (Virtualbox, KVM ... )

Eg 
*** New Intel cpu & integrated onboard 4K shared  graphics (new i9 models I think)
(with extra ram purchased and allocated to shared graphics)
- Intel cpu, nVidia 4gb GPU (was leaning here)
- Intel cpu, AMD Radeon video card
- AMD cpu, AMD Radeon video card
*** AMD cpu & integrated onboard 4K shared graphics (with extra ram purchased and allocated to shared graphics) ?
...speed, value, stability 

Thank you 

Daniel 

... and thanks for the pointers to known good local sources