I foregot to tell why.
It is because of the users with system reboot problems while playing 7D2D and
"complaining"/thinking that is a 7D2D problem instead of faulty/dirty/overheating hardware.
And justify that because other games do not reboot the system.
In that chart you can see that switching to 7d2d 32bit version will help you save a little
power and therefor produces less heat and should lower the risk of system rebooting.
On the other side you can try for example Subnautica - wich you get for free till Dec. 27 2018 if you
register an Epicgames account - that stresses the GPU more than 7d2d and should reboot your system
as well.
This was thought as an proof of concept thing to test your hardware.