Some people have trouble gaming inside of VMWare. It tends to throttle their CPU. However, in the newest version of VMWare Fusion one of the toggles have been removed. You can change quite a bit of settings to optimize your virtual machine explicitly for gaming purposes.
It’s going to hit your CPU no matter what. You’re running software. Make sure that you’ve allocated the most RAM that you can to the VM. Maxing out your CPU won’t kill anything, no. I run my live stream on the Mac Mini every day. It’s run for the past three years, even though the Mac Mini’s CPU is throttled almost constantly.
Yes, the games are going to throttle your CPU. It could happen with XP outright, let alone when it’s running inside of the virtual machine. That will have more overhead.
In terms of mitigating that, it’s not really possible honestly. The latest version of VMWare will take care of most of it for you. Play around in your settings. Check your hard-disk buffering status. Optimize what you can – wherever you can.
It’s not going to kill your computer, no. You’re safe to keep on gaming.
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