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Nerfed Ryzen 7040 Phoenix-HS APUs hit by significantly reduced GPU clocks as AMD also cuts PCIe 5 support from the chips

Started by Redaktion, February 28, 2023, 12:28:17

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Redaktion

The Ryzen 7040 Phoenix-HS APUs combine a Zen 4 CPU with an RDNA 3 Radeon 780M/760M iGPU. The Radeon 780M on the Ryzen 9 7940HS and the Ryzen 7 7840HS features 12 Compute Units (CU) while the Radeon 760M on the Ryzen 5 7640HS boasts 8 CUs. Now, AMD has quietly reduced the GPU clock speeds as well as cut PCIe Gen 5 support from the upcoming Ryzen 7040-HS APUs.

https://www.notebookcheck.net/Nerfed-Ryzen-7040-Phoenix-HS-APUs-hit-by-significantly-reduced-GPU-clocks-as-AMD-also-cuts-PCIe-5-support-from-the-chips.697998.0.html


Skif

8% underclocking, not that much, but the radeon 780m will be the best iGPU of 2023. PCIe 5 ssds are way too hot now and can't be used w/o radiator, which is not quite combined with a thin&light concept. An unpleasant update, but still, not significant. I hope amd won't remove USB4 support from phoenix APUs

NikoB

The author of the note is lying. AMD never promised pci-e 5.0 support in the 7040 series (although it looks odd given the 256GB of memory support compared to the measly 64GB of the top 7945HX and the best built-in to date). Version 4.0 was always indicated there

I looked at the description more than a month ago and already then it was 4.0.

Markus S.

We don't even know how they will perform and what the sweetspot for efficiency is.
This 7% reduction in frequency reduction might turn out to reduce power cost by 10% and performance by only 2-3%.
There is just no way of knowing so this is way too early to freak out.

Anonymousgg

We already knew it wouldn't have PCIe 5.0, and it's not like it matters. Maybe Strix will have it. Relevant for desktop APU usage, not as much for laptops.

We'll see what impact the clock speeds have. I'm more worried about the drivers and memory bandwidth. There was that leak that suggested +25% performance from the 680M, which is far short of the +54% performance/Watt figure that AMD put out when announcing the first RDNA3 GPUs.

heffeque

7% less GPU clock speed -> "Oh my gawed! The APU has been hit by SIGNIFICANTLY reduced GPU clocks!"
That's just BS "journalism". Shame on you, Notebookcheck.

PS: Also nobody cares about PCIe 5.0 on laptops. It's basically useless on today's tech.


informatic

What everyone is waiting for is to see the tests AMD ZEN 4 7040 Phoenix= DDR5 + RDNA 3 + Pci 4.0 + USB 4.0 + HDMI 2.1 + Artificial intelligence designed with XDNA architecture developed by Xilinx and all at 4nm vs 10nm from Intel. This is the 1st Artificial Intelligence on X86 chip and Intel has not been able to achieve it, which makes AMD Zen 4 7040 Phoenix can take much more advantage of the offline potential of ChatGPT.
AMD Zen 4 7040 Phoenix CPUs outperform the Apple M2 in performance and efficiency until the M3 arrives, but it's a big leap for the Zen 4 7040 APU. If you want to know more just type in your search engine AMD ZEN 4 7040 Phoenix

Folie

Quote from: informatic on March 09, 2023, 12:38:38AMD ZEN 4 7040 Phoenix
One finds in every corner that the CPU has security gaps for malware, its AI makes smart phone calls and thus competes with China.

NikoB

All modern motherboards for x86 have a security hole deliberately made from the factory - Intel ME and its counterpart from AMD. Since 2006. So relax guys - all your laptops and PCs from this year are externally controlled through this superhole.

Only computers that are supplied for special services are made initially with Intel ME disabled.

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