For storage, you can upgrade to 2TB or - and this is a first for the Mac - 4TB.Īll of those configurations are available to order today, but the 14- and 18-core models won't ship until January. Keep in mind that even if you play it safe and get 32GB or 64GB, you can always add more RAM later, though not without the help of a service professional. (The 14-core option wasn't known before today.) If 32GB of RAM isn't enough, you can opt for 64GB or 128GB. If that base model isn't enough, you can upgrade to a 10-core, 14-core or 18-core processor. It also has a hardware encryption engine, which takes the burden of encrypting data off of the CPU. Similar to the T1, it too has a secure enclave for storing things like passwords. In this case, the T2 oversees a number of the machine's components, including audio control, the controller for the FaceTime camera, the SSD controller and system management controller, and the image signal processor. Upgrade and you get a Radeon Pro Vega 64 GPU with double the memory.Īpple didn't discuss this during its initial iMac Pro announcement earlier this year, but under the hood, the machine also makes use of a custom T2 security chip - not dissimilar from the T1 chip in the MacBook Pro that stores your Touch ID login credentials.

Instead of traditional VRAM, Apple packs in 8GB of high-bandwidth memory (HBM), wherein the memory is built on to the same package as the graphics chip, allowing for that greater bandwidth.

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