iMac 21.5"

21.5-inch iMac with Retina 4K display: 8GB 2666MHz DDR4 memory, 3.0GHz 6-core 8th-generation Intel Core i5 processor, Radeon Pro 560X with 4GB GDDR5 memory 1TB Fusion Drive

21.5-inch iMac - 2.3GHz dual-core 7th-generation Intel Core i5 processor, Turbo Boost up to 3.6GHz, 8GB 2133MHz memory, configurable to 16GB, 256GB SSD storage

21.5-inch iMac with Retina 4K display: 8GB 2666MHz DDR4 memory, 3.6GHz quad-core 8th-generation Intel Core i3 processor, Radeon Pro 555X with 2GB video memory, 1TB hard drive

21.5-inch iMac with Retina 4K display: 3.6GHz quad-core 8th-generation Intel Core i3 processor, 8GB 2400MHz DDR4 memory, configurable up to 32GB, 256GB SSD storage, Radeon Pro 555X with 2GB of GDDR5 memory

21.5-inch iMac: 2.3GHz dual-core Intel Core i5 8GB 1TB hard drive Intel Iris Plus Graphics 640 Two Thunderbolt 3 ports

21.5-inch iMac with Retina 4K display: 3.0GHz 6-core 8th-generation Intel Core i5 processor, 256GB