HP has introduced several new workstations - in addition to the Z4, Z6, the Z8 G4, the replacement for the previous top-of-the-range Z840 and thus the most powerful model (depending on the equipment selected) and predestined for tasks such as 8K or VR editing and compositing.
The HP Z8 G4 can be equipped with two Xeon CPUs (with a maximum of 56 cores per Intel Xeon Platinum 8180M), two M2. SSDs, a maximum of 48 TB hard disk space, up to three Nvidia Quadro P6000 graphics cards (with 24 GB VRAM each) and with up to 3 TB of memory using the 24 RAM slots. It also offers 10 USB 3.1 Gen 2 USB-C frontal ports and two Gigabit Ethernet ports as well as seven PCIe Gen3 slots with full height and length, four of which are x 16 when using two CPUs. Thunderbolt 3 per PCIe card is optional and should be available from Q2 2018.
Here the exact specifications of the Z8 G4.

HP Z8 G4 Workstation
The Z6 G4 and Z4 G4 models are much more streamlined: the Z6 workstation can be equipped with a maximum of 384 GB of RAM, but still has two CPU slots, the Z4 with a maximum of 256 GB and an Intel Xeon W processor. Particular attention has been paid to security, so the workstations have a self-healing BIOS with intrusion detection. The HP Z8 and Z6 (starting at about ,000) workstations will be released in October, the Z4 (starting at 1,200) in November.
Depending on the equipment chosen, the price of the Z8 G4 ranges from around ,500 to over ,000 - two Xeon Platinum 8180M processors alone cost around €26,000 and three P6000 GPUs together and cost €10,000, plus ECC RAM for around €750 per 64 GB.

HP Z8 G4 Workstation Interior view