Display: 27-inch (diagonal) Retina 5K display True Tone technology Processor: 3.1GHz 6 core 10th-generation Intel Core i5, Turbo Boost up to 4.5GHz 3.3GHz 6 core 10th-generation Intel Core i5, Turbo Boost up to 4.8GHz 3.8GHz 8 core 10th-generation Intel Core i7, Turbo Boost up to 5.0GHz Memory: 8GB (two 4GB) of 2666MHz DDR4 memory; four SO-DIMM slots, user accessible Storage: 3.1GHz — 256GB SSD 3.3GHz — 512GB SSD 3.8GHz — 512GB SSD Graphics: 3.1GHz — AMD Radeon Pro 5300 with 4GB of GDDR6 memory 3.3GHz — AMD Radeon Pro 5300 with 4GB of GDDR6 memory 3.8GHz — AMD Radeon Pro 5500 XT with 8GB of GDDR6 memory Wireless: Wi-Fi 802.11ac Bluetooth 5.0 Other: 1080p FaceTime HD camera 3.5 mm headphone jack SDXC card slot (UHS-II) Four USB-A ports Two Thunderbolt 3 (USB-C) ports 10/100/1000BASE-T Gigabit Ethernet (RJ-45 connector)