The iMac might have the same 3.2GHz base clock but hold its frequency better under load, for example.īut outside of that, Apple is selling a single SoC with a single CPU core configuration across a wider range of products than any competing Intel or AMD CPU is ever sold. It's possible that the M1 CPUs inside the iMac will have different thermal or clock behavior than those inside the systems Apple has already launched, but the company's decision to eschew clock speed disclosures suggests that these chips differ only modestly. Interested in the iMac or the new iPad Pro? You get an M1. If you want to buy a MacBook Air or MacBook Pro, Apple will sell you an M1. The only difference between the M1 you get at $1,299 and the one you get at $1,699 is a single GPU core. But it's better understood as a 4+4 CPU architecture, with four high-performance CPU cores and four high-efficiency CPU cores. Apple calls the M1 an eight-core, and it nominally is. The three new iMacs, which are priced at $1,299, $1,499, and $1,699, respectively, do not differ by memory (8GB) or by CPU core count. That sentence is a bit more revolutionary than it might seem. The new systems are powered by Apple's M1 SoC (System on Chip), which uses the ARMv8 ISA rather than an Intel or AMD x86 CPU. On Tuesday, Apple updated the iMac with new SKUs, display panels, and various color options.
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