AMD @ Computex 2022 Talks Up Ryzen 7000 Series, Announces Mendocino Budget Laptop APUs

[WannaBeOCer]

Looks like the Zen architecture is finally hitting its limitations. Intel’s Raptor Lake is going to be released with another 15% single threaded IPC increase over Alder Lake along with a 40% increase in multi-core performance. It’s insane how Intel was on 14nm for 6 years and AMD was only able to beat them for one generation due to TSMC’s 7nm process.

[chithanh]

They say (at 23:46 in the presentation) that AM5 supports WiFi6E.
Is that in the Chipset? Or a dedicated WiFi chip on the mainboard? Anything in the kernel yet?

That is probably the AMD RZ600 series chip which is made in cooperation with MediaTek, also found on some socket AM4 mobos with onboard wifi. They are supported by mainline Linux with mt7921e driver I believe.

[marciosr]

No, I got that But if you're also using external GPU what's the tool to control which GPU is used?

If external GPU means discrete GPU
Captura de tela de 2022-05-23 13-54-59.png
The first one is integrated on cpu, the second is a discrete PCI express GPU.

https://wiki.archlinux.org/title/PRIME

The same can be made with command line property of steam games.
This led me to reduce idle power consumption from 60 w to 40. I just use the discrete gpu for playing games or other tasks that makes sense.

[L_A_G]

Hm, 15% single core of which 12% is accountable to the frequency jump (4,9 to 5,5 GHz) leaving 3% per clock improvments. That is either played low or really bad, it would make zen 4 lose to zen 3D in some cases. Having 170W TDP limit also isn't flying with me.
Didn't they do anything besides porting zen 3 to 5nm and doubling the L2?

That caught my eye as well. Another thing that came to mind was that how much of that uplift was from using DDR5 RAM. Then again high end CPU design is a game of increasingly diminishing returns where you model what would have the biggest impact and go with those things first and are are left with increasingly less effective additions/improvements as time goes on. Eventually you then have to do a big clean sheet "reset" that takes years and is very expensive to be able to continue making any real headway.

I suspect they're comparing against the "3D" parts that were meant to be an in-house technology demonstrator/test parts, but got so much attention they had to make them into real products. Based on what they showed the initial Zen4 parts aren't going to have it, but they will be extensively compared to them and hence would/will face a lot of criticism if it's just compared to the regular Ryzen 5000-series.

[shmerl]

Will new CPUs have 3D cache?

[loligans]

IGPU is on the IO die, where also the PCIE controller resides. So it has a very fast pathway to use the iGPU for say video decoding and dma the output to a discrete gpu. There will be your usual bios toggles, but I expect it to be automatic - it either detects a gpu on the slot market as "first" or primary, or falls back to the igpu. I don't expect that anyone would want to disable the igpu even with a discrete gpu, because it will likely contain accelerator circuitry that even if nowhere nearly as "fast" as a fat gpu, will have unparalleled latency as it basically resides on the hardware system agent level. That's amd's whole argumentation in favor of making the tiny igpu "a guarantee" across its entire product range, well that and counting each those as a gpu unit to improve its overall graphics market share, in which intel's been eclipsing both amd and nvidia due to having igpus in every consumer cpu.

This is very interesting. As someone who is interested in GPU passthrough I was hoping Intel Arc GPUs would support GVT-g so that the GPU could be used for both the main system and the virtualized system. However if AMD is including tiny GPUs in all of their lineups that may make SR-IOV a moot point. I'm curious what others think

[Anux]

Hm, 15% single core of which 12% is accountable to the frequency jump (4,9 to 5,5 GHz) leaving 3% per clock improvments. That is either played low or really bad, it would make zen 4 lose to zen 3D in some cases. Having 170W TDP limit also isn't flying with me.
Didn't they do anything besides porting zen 3 to 5nm and doubling the L2?

I am wondering if there is any plans for a beefier APUs, where single compute chiplet is replaced with GPU chiplet?
Limiting CPU to 8C/16T, but still enough.

I would bet that they try to merge notebook APUs and desktop CPUs (having only half the development effort) and such a GPU chiplet would be the logical thing in that path. RDNA 3 will allready be a chiplet approach in the high end and that is also the reason I don't belive it will happen with zen 4, the chiplet way seems not yet suitable for low power designs.

[Drago]

I am wondering if there is any plans for a beefier APUs, where single compute chiplet is replaced with GPU chiplet?
Limiting CPU to 8C/16T, but still enough.

[jaxa]

Interesting, I wonder if the desktop 7000 series will feature a reasonable amount of CUs for the IGP as there was a rather wide disappointing disparity in the 6000 mobile series of either 6 or 12 CUs. DDR5 memory is still painfully expensive though.

Your expectation should be 4 CUs. Nothing special, but sufficient for older games. I assume it will be better than the 16/24/32 EUs on Alder Lake desktop CPUs.

It would be funny if harvesting all the usable parts from an OEM PC was cheaper than paying extra for DDR5, but we are only looking at +$100 for 32 GB DDR5, I think. It's a cost that can be tolerated if you want to be an early adopter.

[ddriver]

Generally looking very good, but I'm torn about the integrated GPU. How does switching between iGPU and external GPU is done on AMD side? I guess as a good part, that would allow easy external GPU VM pass-through.

IGPU is on the IO die, where also the PCIE controller resides. So it has a very fast pathway to use the iGPU for say video decoding and dma the output to a discrete gpu. There will be your usual bios toggles, but I expect it to be automatic - it either detects a gpu on the slot market as "first" or primary, or falls back to the igpu. I don't expect that anyone would want to disable the igpu even with a discrete gpu, because it will likely contain accelerator circuitry that even if nowhere nearly as "fast" as a fat gpu, will have unparalleled latency as it basically resides on the hardware system agent level. That's amd's whole argumentation in favor of making the tiny igpu "a guarantee" across its entire product range, well that and counting each those as a gpu unit to improve its overall graphics market share, in which intel's been eclipsing both amd and nvidia due to having igpus in every consumer cpu.