A:AnswerOcta Core means it has 8 cores.
Coffee Lake is Intel's codename for the second 14 nm process node refinement following Broadwell, Skylake, and Kaby Lake. The integrated graphics on Coffee Lake chips allow support for DP 1.2 to HDMI 2.0 and HDCP 2.2 connectivity.
A:Answer5ghz is the all core boost clock speed. 4ghz is the based clock speed setting of the CPU. So the CPU is 4 GHz and only gets to 5GHz when is in turbo boost.