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Microsoft has released more information about the custom-built Ryzen Surface Edition processors found within the Surface Laptop 4, allowing potential buyers to compare them to the 11th-gen Core chips also being offered for this product line.

Microsoft’s Surface Laptop 4 includes two Ryzen chips: the Ryzen 5 4680U Surface Edition, and the Ryzen 7 4980U Surface Edition. These are semi-custom processors, co-developed by AMD and Microsoft, and they required some specialized engineering. They’re not sold by AMD, and can’t be found in any other laptops. Because of the advance development time, they’re built on AMD’s older Zen 2 architecture, rather than the Zen 3 foundations of the new Ryzen 5000 Mobile chips.

At the Surface Laptop 4 launch, we didn’t even know what these chips were. We suspected that they were derivatives of AMD’s Ryzen 4000 Mobile lineup, but the number of cores, the number of threads, clock speeds, and more were all a mystery. AMD still hasn’t published specifications. A Microsoft support document, however, explains the key features of these new processors.

As we suspected, the Ryzen 5 4680U is a six-core, 12-thread chip, while the Ryzen 7 4980U is an 8-core, 16-thread chip. That, right there, is noteworthy: the Ryzen 5 3580U and the Ryzen 7 3780U inside the Surface Laptop 3 were both quad-core processors.


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