As part of a range of iMac upgrades on Tuesday, Apple has entirely dropped its original 8-core Xeon option for the iMac Pro in favor of a 10-core configuration at the same price.
Alongside its release of an updated 27-inch iMac, Apple has made a minor but significant chance to the iMac Pro. By changing the entry-level model to a 10-core Xeon processor configuration, it has made that more powerful option less expensive.
The original 8-core Xeon base configuration is no longer available even as a build-to-order option. Instead, while iMac Pro prices still start at $4,999, the standard model now comes with a 10-core Xeon processor which previously cost around $800 more (deals are already available, however).
Apple has not changed any of the other specifications of the iMac Pro, and the online Apple Store hasn't given it the "New" label that it has previous put on similarly minor specification changes for the Mac mini.
In full, the iMac Pro's new base processor configuration is a 10-core 3.0GHz Intel Xeon W, with Turbo Boost up to 4.5GHz, and 23.75MB cache. The previous entry version was an 8-Core 3.2GHz Intel Xeon W, with Turbo Boost up to 4.2GHz, and 19MB cache.
While the iMac has not been redesigned either, the new release does feature a significant improvement compared to the iMac Pro. The new 27-inch iMac is available with a choice of standard or nano-texture glass, similar to the technology used on Apple's Pro Display XDR.