I am running a I7 580020k cpu
32 megs of ram
Geforce 970
Windows 10 Home

Do not apply any downsampling. It results in crashes after a few minutes.

In The Nvida Control panel wear do I the find Down Sampling option? thank you for the help.

It's in the 3D Settings>Manage 3D Settings>DSR Factors. However the poster above is only referring to the in-game DSR resolutions. In other words just make sure the in-game resolution matches your monitor and isn't higher than it, eg: if your monitor is 1920x1080 then select that resolution in-game or lower.

Edit: I checked how Crysis handles DSR and it's fine, at least for me (W8 64-bit). Playing for an hour at 2x the native resolution didn't cause any issues.

Also verify your installation by going to the More>Manage installation menu of Crysis in GOG Galaxy. I performed a verification check and it updated 3 files, fixing previous launch crashes I had experienced.

The problem is that 32 megabytes of RAM isn't anywhere near enough.

Lol, good point. x'D