Apple is planning a supped-up iMac for December that will be its most powerful PC to date.

The iMac Pro, which was previewed at the company’s developer’s conference, will feature a 27-inch Retina 5K display that supports 1 billion colors, up to 18-core Xeon processors and up to 22 Teraflops of graphics computation.

With an all-flash architecture and all-new thermal design, the iMac Pro will deliver up to 80 percent more cooling capacity than earlier versions.

It will ship with a new Radeon Pro Vega GPU with up to 16GB of on-package high-bandwidth memory (HBM2) to deliver 11 Teraflops of single-precision compute power for real-time 3D rendering and high frame rate VR. Given the processing strain that VR puts on GPUs, the iMac Pro looks like it will be able to easily handle simpler 4K and full HD video editing duties.

You can pack the iMac Pro with up to 4TB of SSD and up to 128GB of ECC memory. It will have four Thunderbolt 3 ports that can connect to up to two high-performance RAID arrays and two 5K displays at the same time. Another Mac first: there will be a 10Gb Ethernet connection on the new iMac Pro.

Prices will start at $4,999.