I'm running 32 cameras (26 x 3 meg cams & 6 x 8 meg cams) and have BI running on a Dell Poweredge R720 with windows server 2019
The Dell Poweredge has dual E5-2690 processors (16 cores total), 128G of memory, OS running on a 1 TB SSD, and 24TB of mechanical storage for video.
My CPU...