It seems as though AMD is readying a new mobile APU that bears a striking resemblance to the existing Ryzen Z2 Extreme. The AMD Ryzen AI 7 HX 455 was recently leaked by Golden Pig Upgrade on Weibo, with the post suggesting that the new CPU would launch with eight cores and 16 threads and a 16 CU iGPU. The 16 CU iGPU will reportedly be identical to the existing Radeon 890M on the Ryzen AI Z2 Extreme, which has proven capable of very decent gaming performance.
The exact core breakdown is unknown, but in a response to a question about the CCD layout, the leaker alludes to a similar layout to the Z2 Extreme, which features three Zen 5 cores and five Zen 5c cores across two CCDs. Although the new APU will have a significantly larger cache to work with—24 MB L3 instead of the Z2 Extreme's 16 MB—signalling that it will be a cut-back version of the existing Ryzen AI HX 470 APU, which features four Zen 5 cores and eight Zen 5c cores.
Source: TechPowerUp News · Summarized by HeadlinesBriefing