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AMD’s Phoenix SoC

206 pointsby treesciencebotover 1 year ago

19 comments

imiricover 1 year ago
Absolutely love this chipset. It powers my favorite tech of 2023.<p>The 7840U is a beast in handhelds, and the 7940HS likewise in laptops and mini PCs. They&#x27;re great for gaming, media, productivity, and anything you throw at it. Intel cannot compete with the performance and TDP of these. AMD is completely dominating the portable x86 segment, so much so, that I&#x27;m not envious of Apple&#x27;s dominance of ARM. Can&#x27;t wait to see the next generation of this chipset, as well as whatever Intel can produce in response.
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sneakover 1 year ago
Is it just me, or does the inclusion of a Microsoft Pluton HSM (and of course the AMD PSP) inside the SoC make this a no-go for security critical stuff?<p>I&#x27;m sure systems vendors will love putting these in Windows laptops (a growing market with a bright future, I&#x27;m sure) but I can&#x27;t imagine hackers having much use for these things.
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d3w4s9over 1 year ago
Have been using a 7735HS (6800H) based mini PC for the last few days, very impressed with it -- the entire machine idles at 10W, light load &lt; 20W, medium load at &lt; 40W and heavy load ~ 60W. The fan isn&#x27;t on most of the time. The latest generation is likely better, and U series is even quieter. It has better performance and produces less heat than my Intel NUC and laptop.
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bearjawsover 1 year ago
Having recently bought a ROG ally, I have to say I am incredibly impressed with the SOC. It is pretty quiet and can run most of my games very well.<p>I am blown away to play OW2, Apex, Cities Skylines and even BOTW on a hand held device, incredible device for people who travel a lot.
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xnxover 1 year ago
Hot Chips related, I found this the keynote from Google on the state of the art (that they&#x27;re willing to talk about) on ML hardware fascinating: <a href="https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=EFe7-WZMMhc">https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=EFe7-WZMMhc</a><p>I had no idea about so many of the topics discussed like power management and detecting and mitigating calculation errors.
speed_spreadover 1 year ago
Weird quote of the week, from the article:<p>&quot;As another note, dog hearing can cover the 20-35 KHz range, so the ultrasound engine may be able to detect static dogs by making them non-static, after which they will cause a Doppler shift.&quot;<p>So what&#x27;s a static dog? Rust me wants a &amp;&#x27;static dog, Java me wants a static final dog. And I also want a real dog named Doppler, or maybe just Shift?
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jauntywundrkindover 1 year ago
&gt; <i>Documentation suggests a 1 GHz clock, but Phoenix’s XDNA might be running at 1.25 GHz as AMD says BF16 is supported with 5 TFLOPS of throughput.</i><p>It&#x27;s amazing seeing the ML FPGA come out on a CPU. There&#x27;s such an incredible opportunity for AMD here, if they can get the world adopting &amp; using this kind of hardware that most folks in dev are not used to using. Great seeing some internal details here.<p>I haven&#x27;t heard a peep thought about devs actually having access to this hardware. One of the big criticisms at launch time was that there was essentially no material for using this sizable part of the chip.<p>It&#x27;s not just important for Phoenix &amp; latter chips, it&#x27;s potential bridge for AMD to make their FPGA in general used &amp; adopted. But like the GPUs, it&#x27;s questionable whether AMD can get broadscale enough adoption for advantage to mean anything for them. Ideally AMD would be working with yosys or openxla or someone to have an easy to adopt synthesis pipeline folks could play with. Right now I still haven&#x27;t heard that they have anything, even proprietary or self-made.<p>Edit: oh well, AMD <i>just</i> dropped something! <a href="https:&#x2F;&#x2F;www.tomshardware.com&#x2F;news&#x2F;amd-posts-ryzen-ai-software-platform-preview-for-developers" rel="nofollow noreferrer">https:&#x2F;&#x2F;www.tomshardware.com&#x2F;news&#x2F;amd-posts-ryzen-ai-softwar...</a>
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MassiveBonk51over 1 year ago
I want these to come to desktop at some point. I&#x27;d really love to have a compact x86 box powered by one.
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treprinumover 1 year ago
7940HS in my 4090 laptop is cool, though I am worried about the future starting with Phoenix 2 that will feature few good cores (Zen 5) and many crappy cores (Zen 5c). Not sure why AMD had to ape a failing Intel arch here that was introduced only to improve Intel&#x27;s multicore benchmarks. Now with AMD we will get all the &quot;heterogenous goodies&quot; when programs keep running into weird states due to scheduler not being 100% in its core allocations. Even if 5c&#x27;s only difference is in the smaller cache and slower AVX-512, this could bite in unpredictable ways. Moreover, if AMD really needed to go with this hybrid design, why not ape Apple M1 or M2 with only 2 or 4 crappy cores?
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tedunangstover 1 year ago
Note that you can still buy a new 7000 series mobile ryzen with Vega GCN graphics if that&#x27;s your thing.
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sylwareover 1 year ago
Hopefully it will be easy to find good and not that expensive laptops with such chips.<p>Now I wish for a 100% hardware raytracing BHV... if raytracing stays around. I hope RDNA4 will do that. Because those horrible mesa RADV glsl shaders to do &quot;soft&quot; BHV, erk... (I prefer to disable RT and compile that out, and remove the glslang SDK dependency...). They should have been coded directly in SPIR-V (with a plain and simple C coded SPIR-V translater, or better, direct AMD GPU assembly code (with a plain and simple C coded AMD GPU assembler).
Const-meover 1 year ago
If you consider a laptop with Ryzen 9 7940HS, and you gonna pay with your own money, note that Ryzen 7 7840HS is pretty much the same chip. The only difference between the two seems to be a couple hundred MHz of various clock frequencies, which is barely relevant for laptops due to thermal throttling on sustained workloads.<p>The rest of the specs are the same, but Ryzen 7 is somewhat cheaper due to marketing. For example, at the time of writing the configurator for HP ZBook Firefly 14 G10 A laptops offered in US says the price difference is $285.
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Havocover 1 year ago
I wonder if this with lots of ram will make it similarly useful for large parameter llm like macs
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flakinessover 1 year ago
Any recommended Linux laptop with this? Does Framework 16 have it? What else? I was thinking about Dell XPS but AMD&#x27;s 16 threads CPU is so appealing.
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iopqover 1 year ago
XDNA benchmarks when
fancyfredbotover 1 year ago
Does any software at all use XDNA?
pixelpoetover 1 year ago
No OpenCL drivers, no interest from me.
pbj1968over 1 year ago
Can it run Gauntlet Legends 100% in MAME?
lakomenover 1 year ago
Lately, since I&#x27;m not in my home country right now, and like playing games, I&#x27;ve been using my home computer with a 4070 rtx to play and stream h264 encoded game play, using GeForce experience and moonlight. But since this uses quite some power and also I dualboot with Linux being the default (I turn on the machine with IPMI, Asus workstation board), then ssh into it, become root and efibootmgr temporarily to boot Windows on next boot and reboot. In Windows then both TeamViewer is installed, because doing anything in GeForce Experience locks up the Moonlight &quot;server&quot;, and the Moonlight streaming stuff, aka firewall opener, so I don&#x27;t have to wireguard every time. Although my desktop&#x2F;workstation is 4k resolution, I stream at 1920×1080 resolution.<p>I can even stream to Twitch at the same time, but it&#x27;s not ideal. I imagine, I need either a dedicated encoding card or a stronger Nvidia card than the 4070. I get some stuttering every now and then. 6Mbps goes to Twitch, 30 max to me and my 1920×1080 laptop.<p>Since this is all very complicated, I was thinking, have a dedicated gaming machine which doesn&#x27;t consume that much power, which I can put to sleep or wake via Moonlight. This looks like a candidate, but it&#x27;s AMD and idk if that will work. Ok, I looked it up and phoenix should work if it has VCE (which I assume it does, the article doesnt talk about it).<p>Ideally I could put it in some data center for a minimum fee, but that&#x27;s wishful thinking, because that fee would not be minimum. With stadia gone and shadowPC having outdated hardware for expensive prices, it could be something. TBH I wouldn&#x27;t mind renting a gaming computer with streaming, but let&#x27;s be honest, all the offers assume you&#x27;re not a pirate. And that&#x27;s why they&#x27;re all failing.<p>So yeah this little box (or soc rather) could be my next hardware purchase, a dedicated game streaming machine. :)<p>EDIT: I retract that statement, now that I&#x27;ve searched for 780M performance. It would require a dedicated GPU. Oh well. It&#x27;s a little weaker than the Nvidia 980M of my laptop, but makes less noise. For energy efficiency it&#x27;s ok, but if you like playing the latest and greatest, not an option. It&#x27;s essential 30FPS 1920×1080 gaming.