This dual-core chip has four threads, lacks Boost and features UHD 630 integrated graphics. It has a 65W TDP and is based on the 14nm Coffee Lake architecture.
The Pentium G5620 should be available within a couple of weeks, the pricing is still unknown.
As a fun bit of trivia, AnandTech points out that 4GHz Pentium processors were originally expected to be available sometime around 2005. That didn't play out as expected because Intel's NetBurst architecture didn't scale as well as the chip giant thought:
Intel originally planned to release its Pentium 4 processors based on the NetBurst microarchitecture and clocked at 4 GHz sometime in the middle of the previous decade. At some point, Intel stopped development of its Tejas generation of NetBurst processors cancelling all the products in the lineup, then the company cancelled release of Pentium 4 4.0 GHz CPUs featuring the Prescott, and the Prescott 2M designs due in 2005 – 2006. Later on the company released numerous Core-branded processors clocked at 4.0 GHz and higher, but frequencies of Pentiums topped at 3.8 GHz.