"Officially the follow-up to the Ryzen AI 300 chips announced in June 2024, these processors offer some modest clock speed improvements and faster memory support. The new Ryzen AI 9 HX 470 has a peak boost clock speed of 5.2 GHz and support for LPDDR5x-8533, for example, up from 5.1 GHz and LPDDR5x-8000 for the Ryzen AI 9 HX 370, and its built-in neural processing unit (NPU) is capable of 60 trillion operations per second (TOPS) rather than 50 TOPS."
"But beyond those modest tweaks, Ryzen AI 400 chips are constructed from the same building blocks as Ryzen AI 300. They use a combination of high-performance Zen 5 CPU cores and smaller, more efficient Zen 5c cores, between 4 and 16 integrated GPU cores based on the RDNA 3 GPU architecture, and a 4 nm TSMC manufacturing process."
"This isn't new behavior from AMD. A couple of processor generations ago (and one processor naming scheme ago), the company did the same thing with the Ryzen 8040-series laptop chips, sprucing up the older 7040 series with marginally higher clock speeds and not much else. The upshot is that if you can get a decent discount on a Ryzen AI 300 system because it's 'old,' you can buy it without missing much."
Ryzen AI 400 series follow the Ryzen AI 300 family with modest improvements in clock speeds, memory support, and NPU performance. The Ryzen AI 9 HX 470 increases peak boost to 5.2 GHz and adds LPDDR5x-8533 support while raising NPU capability to 60 TOPS from 50 TOPS. The chips retain high-performance Zen 5 cores alongside efficient Zen 5c cores, include 4–16 integrated RDNA 3 GPU cores, and remain on a 4 nm TSMC node. AMD previously refreshed laptop CPUs in a similar incremental manner. Significant architectural changes are absent, making older models still competitive when discounted.
Read at Ars Technica
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