Ryzen 4000 apu could host igpus vega 13 and vega 15

Following initial rumors that the next line of Zen 2- based APUs (Ryzen 4000 - Renoir) would arrive with Vega 10 graphics integrated, the latest rumors suggest that the chips will include Vega 12 and potentially Vega 13 and Vega integrated GPUs. 15.

Ryzen 4000 APU will be released in the middle of next year with iGPU Vega

The rumor comes from well-known hardware leaker Komachi_Ensaka on Twitter, who reportedly observed various Renoir listings with B12 included in their names, which could point to 12 calculation units for the GPU.

It is also noted that, due to the use of AMD's 7nm process for next-generation APUs, it is also possible to integrate Vega 13 or even Vega 15 GPUs into them as the new processors allow for denser designs.

A potential Vega 13 APU could have a 3 + 3 + 3 ++ 3 + 1CU configuration, with each CU getting 32 KB of L1 instruction cache (L $) and 16 KB of constant cache (K $). A 3 + 3 + 3 + 2 + 2 configuration may be even more likely. If those configurations exist, then there may also be a 3 + 3 + 3 + 3 + 3 configuration on an integrated GPU in Vega 15.

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No trace of Navi in ​​sight

The long-awaited RDNA-based Navi GPU microarchitecture finally arrived this year for desktop PCs. However, while Renoir's new APUs are not expected to ship until the first half of 2020, it looks like they will continue to use AMD's Vega GPU microarchitecture that still uses GCN instructions.

As we know, AMD's APU processors are a generation behind the desktop variants, yet they still use the same nomenclature. That is why the Ryzen 4000 APUs will use the Zen 2 architecture and the non-APU desktop variants will use Zen 3 next year. This means that we will not see Navi iGPUs until Ryzen 5000 in 2021.

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