If the Phoenix2 APU has dual channel (128bit) memory, could it be usefully faster than the Steamdeck's APU?

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AMD Phoenix2 CPU die shot featuring Zen4/Zen4c architectures has emerged - VideoCardz.com

Low-cost AMD Phoenix CPU has been pictured up close AMD Phoenix2 die shot, Source: HXL AMD has maintained a low profile when it comes to their smaller Phoenix2 chip. Without the aid of rumors, CPU images, and tech enthusiasts scouring the AMD specs website for details, it might seem as though...

videocardz.com

Even though it has half the number of shaders (256 RDNA3 vs 512 RDNA2).

The largest bottleneck on APU graphics performance is always memory bandwidth - because it is shared, and because it is a 128bit desktop memory standard.

If the link above is correct that Phoenix2 has a dual-channel memory bus (uinlike the 64bit cheapo Intel/AMD platforms), then is that enough to make it a good steamdeck 2.0 product?

4nm / RDNA3 / 30% more bandwidth / +50% GPU clocks - are all useful advantages. But are they enough to make up for a halving of the number of shaders... Thinking of the recent valve hardware codenames turning up in recent code.

 

[PeegeeTips]

Firestrike update:
Pheonix2 (Ryzen Z1) at 15w = 4147
Van Gogh (Steamdeck) at ??w = 3029

AMD Ryzen Z1 (7540U/Phoenix2) 简单测试

名字少一个 Extreme，到底少了什么？2023年发售的Ryzen Z1或者说Ryzen 5 7540U虽然表面上不起眼，但它其实是非常不同寻常的一个SoC： AMD打破Zen2以来的传统，少见的专为Ryzen 5 SKU设计了Phoenix2 SoC，而非使用…

zhuanlan.zhihu.com

Running 3DMark on Steam Deck :: 3DMark General Discussions

I got 3DMark running on the Steam Deck (SteamOS via Proton). For anyone interested here's how: • set compatibility tool to Proton Experimental or GE-Proton7-x • to fix the white/blank UI, set launch options to: %command% --use-gl=osmesa • run it once, it will start in a demo mode, exit • to use...

steamcommunity.com

 

[PeegeeTips]

I agree, it isn't a Steamdeck 2.0.

I do wonder if it might not be used in a Steamdeck v1.5.

 

[PeegeeTips]

yes, i kinda agree that that valve won't want to release a 2.0 until it has available the power to run all current and near future triple titles, which Van Gogh era performance is starting to struggle with.

but i could still see Pheonix2 being used in a 'refresh' product that basically targets the same performance as 1.0, but allows longer battery life, better cooling, alongside some other easy win upgrades such as the screen.

 

[PeegeeTips]

the answer to the question: "could it be usefully faster than the Van Gogh?" - seems to be "no".

Z1 ASUS ROG Ally First Look! The Lower Cost $599 Version, Hands On Review

In this video we take look at the Z1 ASUS ROG Ally! This is the less expensive Version of the ROG ally coming in with A 6 Core 12 Thread Zen 4 CPU as opposed...

www.youtube.com

it's probably about the same, but still believe it might make it a useful steamdeck 'refresh', and one that provides better emulation support via Zen4's AVX512 support.

what do you think?