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> The big wildcard is graphics; Apple has to get from a 9,000-odd Metal compute score from the A12X to the 38,789 of a Radeon Pro 5500 XT in the top-end iMac to

> The big wildcard is graphics; Apple has to get from a 9,000-odd Metal compute score from the A12X to the 38,789 of a Radeon Pro 5500 XT in the top-end iMac today — that'll mean they likely need 4–5X the GPU cores, which seems very achievable in a Mac-sized thermal profile Is there something that would prevent them from associating a Radeon gfx with an ARM CPU as an interim solution while they amp up their own graphics? Is there even a PCI Express on ARM architecture?

my123 6y ago
Of course PCIe is a standard on Arm. (as are UEFI and ACPI) On Linux, Nvidia officially supports their drivers on Arm for PCIe GPUs since... June 26, 2013 for 32-bit arm. (see https://www.nvidia.com/en-us/drivers/unix/linux-arm-display-archive/ https://www.nvidia.com/en-us/drivers/unix/linux-arm-display-...). For Arm 64-bit and PCIe GPUs, it's far more recent ( https://www.nvidia.com/en-us/drivers/unix/linux-aarch64-archive/ https://www.nvidia.com/en-us/drivers/unix/linux-aarch64-arch... ) nouveau and amdgpu run fine too.