AMD unveils roadmap with Ryzen Threadripper, Ryzen 3, and APUs
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And the data centre targeted Naples, with up to 32 cores, has become EPYC.
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Re: AMD unveils roadmap with Ryzen Threadripper, Ryzen 3, and APUs
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Ryzen Mobile APUs ... will mix Zen 4C/8T compute cores with high performance Vega graphics.
:o
Game changer. Vega's tuned for higher clocks and higher IPC. 700+ Vega cores could be serious muscle - maybe as high as RX 460 performance in an APU...
Re: AMD unveils roadmap with Ryzen Threadripper, Ryzen 3, and APUs
Well, not sure about 700 cores. Top current Bristol Ridge is max 512 @ 1108MHz (A12-9800), and they are claiming +40% CPU performance.
https://i.imgur.com/DPGMNX9.pngA12-9800
So assuming that Vega runs faster there shouldn't be any reason to go for 700.
Although, that slide is about mobile. So I guess the FX-9830P which is 512 cores@900MHz. I guess a lot of the -50% power is going to come from the CPU side and since Zen runs way more efficiently at <3GHz and so far we only know about 4C/8T parts, the CPU side is likely to be one CCX @ 2.5GHz or so?
Re: AMD unveils roadmap with Ryzen Threadripper, Ryzen 3, and APUs
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Originally Posted by
kompukare
Well, not sure about 700 cores. Top current Bristol Ridge is max 512 @ 1108MHz (A12-9800), and they are claiming +40% CPU performance.
https://i.imgur.com/DPGMNX9.pngA12-9800
So assuming that Vega runs faster there shouldn't be any reason to go for 700.
Although, that slide is about mobile. So I guess the FX-9830P which is 512 cores@900MHz. I guess a lot of the -50% power is going to come from the CPU side and since Zen runs way more efficiently at <3GHz and so far we only know about 4C/8T parts, the CPU side is likely to be one CCX @ 2.5GHz or so?
It could be 700 cores running at under 1GHZ?? This would certainly make sense in more TDP limited situations.
Re: AMD unveils roadmap with Ryzen Threadripper, Ryzen 3, and APUs
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Originally Posted by
CAT-THE-FIFTH
It could be 700 cores running at under 1GHZ?? This would certainly make sense in more TDP limited situations.
You're right. Wide and slow would work well. And for a 4 core Zen CCX to only offer CPU +50% compared to a 2 module 'dozer CPU implies their mobile parts are doing exactly that.
Re: AMD unveils roadmap with Ryzen Threadripper, Ryzen 3, and APUs
It's known to be 704 shaders in Raven Ridge. Basically that 40% higher GPU performance comes entirely from the additional shaders. Additionally, if Vega is more efficient per clock, the clock speeds may actually be lower. And that's how they are using 50% less power.
And that also leads onto the next thought - that APU GPU probably has a massive overclocking headroom, and that may actually get it to near RX460 performance.
Re: AMD unveils roadmap with Ryzen Threadripper, Ryzen 3, and APUs
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Originally Posted by
kompukare
... for a 4 core Zen CCX to only offer CPU +50% compared to a 2 module 'dozer CPU...
Depends on what metric they're using for the comparison. +50% on single threads would actually tie in very nicely with the fact that Zen got a ~50% IPC gain over Excavator: keep the same clocks, get more performance for less power.
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Originally Posted by
sykobee
... if Vega is more efficient per clock, the clock speeds may actually be lower. And that's how they are using 50% less power.
Again, if the 704 shader rumour is true (and it's on a LOT of AMD roadmaps), that's 37.5% more shaders. So my guess would be lower clocks. iirc the IGP section of Bristol Ridge doesn't add that much to the TDP compared to the CPU cores, northbridge and southbridge, so there's not very much power to trim from the GPU anyway.
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Originally Posted by
sykobee
... And that also leads onto the next thought - that APU GPU probably has a massive overclocking headroom, and that may actually get it to near RX460 performance.
Based on AMD's enterprise plans Raven Ridge targets 12W - 45W on mobile, and 45W - 65W on desktop (enterprise uses different codenames, but the silicon and configurations are almost always shared). Given the fairly low OC headroom on Ryzen 7 & 5, I'd assume the APUs will also hit a voltage wall fairly quickly. Vega really is going to come down to just how much they've been able to tune the IPC. Polaris is feeling more and more like a stop gap revision while they got Vega tuned and waited for HBM2 to be available...
Re: AMD unveils roadmap with Ryzen Threadripper, Ryzen 3, and APUs
I hope we will see lots of Intel nuc style devices using the new apus. They could easily clean up in the low end as Intel just has atom class stuff until about £230 barebones.
Re: AMD unveils roadmap with Ryzen Threadripper, Ryzen 3, and APUs
What are the odds of a 4c/8t desktop Ryzen Vega APU this year? If is the Vega version doesn't come to desktop then there might be a Ryzen 3 (4 core) based APU with a tweaked polaris gpu.
Re: AMD unveils roadmap with Ryzen Threadripper, Ryzen 3, and APUs
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Originally Posted by
The Hand
What are the odds of a 4c/8t desktop Ryzen Vega APU this year? If is the Vega version doesn't come to desktop then there might be a Ryzen 3 (4 core) based APU with a tweaked polaris gpu.
Say there's zero chance of them 'tweaking' a part with Polaris. It's either Vega or nothing. Especially since Raja confirmed that Vega has Infinity Fabric. Which means even a multi-die approach is possible like for Epyc (Naples).
