Apple has detailed new iMac hardware at WWDC 2017. Apple previously promised new iMac hardware for later this year, although a WWDC reveal was not totally expected.

The new hardware includes improved Retina displays, Kaby Lake processors, and upgraded memory and storage options.

The new machines include both USB-A and USB-C/Thunderbolt 3 ports on the back I/O. Updates are available for the 21.5-inch non-Retina machine as well as the 4K iMac and 5K iMac.

Apple has specifically described the new 27-inch iMac as designed for VR development thanks in part to new GPU upgrades. Included in the presentation is a demonstration of virtual reality gameplay driven by a new iMac paired with a VR headset.

The new iMac lineup now starts at $1299 for the 4K model (and $1099 for the updated 21.5-inch model).