Friday, September 20th 2024

AMD's New Strix Halo "Zen 5" Mobile Chips to Feature 40 iGPU CUs

by
Nomad76
 Discuss (59 Comments)
The upcoming Strix Point Halo processors from AMD now have a new name - Ryzen AI Max - and come with big promises of impressive power. This rumor, first reported by VideoCardz and originating from Weibo leaker Golden Pig Upgrade, reveals key details about the first three processors in this lineup, along with their specifications.

The leaker claims AMD might roll out a new naming system for these processors branding them as part of the Ryzen AI Max series. These chips will run on the anticipated Strix Halo APU. This series includes three models, with the top-end version boasting up to 16 Zen 5 cores and 40 Compute Units (CUs) for graphics. This setup is expected for the best model contrary to earlier rumors that AMD would drop such a variant. In fact, word has it that at least two of the models in this lineup will come with 40 RDNA 3.5 Compute Units. The leaker also hints that Strix Halo will handle up to 96 GB of video memory suggesting AMD aims to make this processor work with its ROCm (Open Compute Platform) system.
AMD Ryzen AI Max 300 Strix Halo Lineup
  • Ryzen AI Max+ 395 - 16 Zen 5 cores + 40 Compute Units (RDNA 3.5)
  • Ryzen AI Max 390 - 12 cores + 40 Compute Units
  • Ryzen AI Max 385 - 8 cores + 32 Compute Units
The Strix Halo APU is expected to use two CCDs (Core Complex Dies) with 8 cores each. One variant is rumored to have just a single CCD, potentially making it an ideal option for gaming devices. Interestingly, none of the leaked models feature fewer than 32 CUs, which is already double the 16 CUs of the Strix Point.
Sources: Golden Pig Upgrade (Weibo), Videocardz

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59 Comments on AMD's New Strix Halo "Zen 5" Mobile Chips to Feature 40 iGPU CUs

#51
TumbleGeorge
Darmok N Jalad...in AI performance, running on the CPU only. I dunno, but if I had a SOC with an NPE AND a massive IGP, the last place I'd elect to run an AI workload is the CPU. How CPU-only AI performance translates to other applications is certainly up for debate, but it seems outside the main purpose of such a product.
If you have different tests with Strix Halo right now, please share it. ;)
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#52
dyonoctis
trsttteThis will be a proper 45+W chip that will make workstation laptop great again (pardon the pun). One issue that plagues current laptop design is the insistence on using a dedicated GPU on most machines even if they wouldn't need one. You can't get an AMD Phoenix Point laptop without a discrete GPU included, just like you can't get an Intel HX laptop without one. To makes matters worse hybrid graphics was interesting when it was invented but windows quickly made it such a bad idea, I'm yet to have a laptop where the system works correctly

With such a big graphics component maybe, just maybe, we'll finally get good laptop designs with the best CPUs on the market and with no discrete GPU attached to fulfill sales quotas.
Do you mean dragon range? There are a few OLED laptops without GPU using H chips from AMD.

Dragon range and Intel HX chips are essentially desktop chips using the weakest iGPU, that might be enough for some users, but that might be a tad unbalanced for others. Both AMD and Intel designed those chips with the assumption that they would be paired with a dGPU, the "weaker" laptop CPU have better iGPUs. Gotta hope that Intel tries to make a chip with a big iGPU as well.

Laptop pc are already overbolated when it comes to the number of SKUs and confusing as fuck for people who aren't into tech, IMO, the last thing that they need to add is a premium product lineup that would be worse in some tasks over the thin and light laptops with a bigger iGPU :D
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#53
R0H1T
igormpThe NPU goes in the IO die, which, as I said before, is totally new.
I still think it should be monolithic, let's see how this plays out when Halo's released. The I/O die could be a major(?) negative since this is a relatively low volume, albeit high margin part.
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#54
igormp
R0H1TI still think it should be monolithic, let's see how this plays out when Halo's released. The I/O die could be a major(?) negative since this is a relatively low volume, albeit high margin part.
Low volume, high part is exactly what makes it more reasonable to be a chiplet design.
Instead of designing and entirely new, huge chip (which would warrant yield issues), you can just worry about the IO Die, the only new part, and reuse the existing CCDs that are already cheap since they're used in the desktop Ryzens and Epycs.
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#55
Marcus L
igormpLow volume, high part is exactly what makes it more reasonable to be a chiplet design.
Instead of designing and entirely new, huge chip (which would warrant yield issues), you can just worry about the IO Die, the only new part, and reuse the existing CCDs that are already cheap since they're used in the desktop Ryzens and Epycs.
If AMD could run 8000MTs on a chiplet based IMC then surely 9000 series would have gotten a better IMC, only on monolithic designs can they increase the memory speed by so much compared to chiplet CPU's
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#56
igormp
Marcus LIf AMD could run 8000MTs on a chiplet based IMC
It's LPDDR5, which has higher latencies. It's also a totally new IOD not used in any product before it.
Marcus Lthen surely 9000 series would have gotten a better IMC
They could, but instead they just reused the same IOD from Zen 4. 0 cost for then on that front because they don't really give much of a crap to invest that much on Ryzen desktop.
Marcus Lonly on monolithic designs can they increase the memory speed by so much compared to chiplet CPU's
Not really, it's just a matter of doing a proper IO Die that can handle such speeds. Strix Halo's IOD is likely going to be made on a better node process than Zen4/5.
This at least could give us some hope that Zen 6's IOD might be improved as well.
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#57
trsttte
Mack4285Is it chiplet design? If so, they have always had high idle power consumption so far.
I believe it's a chiplet modular design but not like desktop chiplets with high power consumption but tiles like the 7900xt with a much more efficient interconnect. Time will tell.
dyonoctisDo you mean dragon range? There are a few OLED laptops without GPU using H chips from AMD.
No, I mean Phoenix which is monolithic with a bigger GPU like other mobile chips - it's a traditional mobile chip with a high power limit. Sure there are some designs here and there but they are very rare.
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#58
Darmok N Jalad
TumbleGeorgeIf you have different tests with Strix Halo right now, please share it. ;)
Yeah, there aren’t any, but it’s such an odd leak, to run a bench using the worst possible part of the SOC to do it. It’s not even the usual geekbench trip. My guess is that SH will not be the best at anything, but it’s probably going to make for a great all-in-one solution in the right applications.
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#59
igormp
Darmok N JaladYeah, there aren’t any, but it’s such an odd leak, to run a bench using the worst possible part of the SOC to do it. It’s not even the usual geekbench trip. My guess is that SH will not be the best at anything, but it’s probably going to make for a great all-in-one solution in the right applications.
It'll have unified memory with a reasonable pool size (up to 96 or 128GB, I guess) and okay-ish bandwidth, this would make it a nice machine to run 70b+ LLMs (as long as you can get your stuff working with ROCm).
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