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Though the memory had been quadrupled, it could not be upgraded. The large increase earned it the nickname Fat Mac. A 64 KB ROM chip boosts the effective memory to 576 KB, but this is offset by the display's 22 KB framebuffer, which is shared with the DMA video controller. This shared arrangement reduces CPU performance by up to 35%.
Protected memory was only added to Macintosh computers with the release of the Mac OS X operating system. According to Andy Hertzfeld, the Macintosh used for the introduction demo on January 24, 1984, was a prototype with 512k RAM, even though the first model offered for sale implemented just 128k of non-expandable memory. This prototype was ...
For this reason, 512Ke users' only hard disk option is the slower, floppy-port-based Hard Disk 20, or similar products for the serial port, even though the 512Ke ROMs contain the "SCSI Manager" software that enables the use of faster SCSI hard disks (because the ROMs are the same as the ones used in the Mac Plus, which does have a SCSI port ...
OS X 10.11 El Capitan if 2 GB RAM installed, otherwise Mac OS X 10.6 Snow Leopard: ... 256, 512 GB, or 1 TB SSD: 1 TB Fusion Optional: 2, 3 TB Fusion, 256, 512 GB, 1 ...
Mac Mini (stylized as Mac mini) is a small form factor desktop computer developed and marketed by Apple Inc.It is one of the company's four current Mac desktop computers, positioned as the entry-level consumer product, below the all-in-one iMac and the professional Mac Studio and Mac Pro.
The standard memory was upgraded to 4 GB, with a maximum configuration of 8 GB. Storage started at 128 GB SSD, with options for 256 GB and 512 GB. The Haswell considerably improved battery life from the previous models, and the models are capable of 9 hours on the 11-inch model and 12 hours on the 13-inch model; a team of reviewers exceeded ...
RAM Control-lers [d] Bandwidth GB/s A18 Pro: 2 4 6 96 768 16 35 TOPS LPDDR5X 7500 4 60 8 iPhone 16 Pro M3: 4 8 128 1024 18 TOPS LPDDR5 6400 8 102.4 25 billion 20 M4 3 6 10 160 1280 38 TOPS LPDDR5X 7500 120 28 billion 22 iPad Pro (256–512GB) [27] 4 iPad Pro (1–2TB), [27] iMac (4-port), Mac Mini, MacBook Pro 14" 4 8 128 1024 iMac (2-port)
The SoC and DRAM chips are mounted together in a system-in-a-package design. 8 GB and 16 GB configurations are available. The M1 Pro has 256-bit LPDDR5 SDRAM, and the M1 Max has 512-bit LPDDR5 SDRAM memory. While the M1 SoC has 70 GB/s memory bandwidth, the M1 Pro has 200 GB/s bandwidth and the M1 Max has 400 GB/s bandwidth. [8]