Intel 8th Gen Core with Radeon RX Vega GPU Presentation

Re:Intel 8th Gen Core with Radeon RX Vega GPU Presentation by linarism on Sunday January 07, 2018 @03:57PM (#16092657)

I wonder if OEMs will find it easier to design a single 100W cooling system instead of 2 45W cooling systems to fit inside an ultrabook. Hoping for a new XPS15!

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Re:Intel 8th Gen Core with Radeon RX Vega GPU Presentation by lettergram on Sunday January 07, 2018 @03:36PM (#16092544)

I mean.. I wouldn't trust those benchmarks at all.

It does seem like good news for AMD though!

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Re:Intel 8th Gen Core with Radeon RX Vega GPU Presentation by dogma1138 on Sunday January 07, 2018 @06:10PM (#16093307)

I'm not sure how good it is for AMD since their Ryzen G series APUs which also aim for the 45-60W target come with a much weaker GPU (11 CUs and no onboard memory).

Sure they would be cheaper but it doesn't really matter that much the OEMs price the laptops too close together now for that to make a difference.

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Re:Intel 8th Gen Core with Radeon RX Vega GPU Presentation by monocasa on Sunday January 07, 2018 @03:33PM (#16092529)

Only 8x PCI-E 3.0? That's a little on the low side for a regular card, not to mention chips on the same interposer, no?

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Re:Intel 8th Gen Core with Radeon RX Vega GPU Presentation by bryanlarsen on Sunday January 07, 2018 @04:24PM (#16092823)

AFAICT, Coffee Lake has 24 PCI-E lanes, 8 of which are used to connect to the chipset. If they used all remaining 16 for the GPU, then NVMe and thunderbolt connections would have to go through the south bridge, affecting latency and throughput.

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Re:Intel 8th Gen Core with Radeon RX Vega GPU Presentation by dogma1138 on Sunday January 07, 2018 @06:08PM (#16093296)

Intel doesn't connect to the chipset with PCIe, it does that with DMI.

Coffee Lake only has 16 PCIE lanes on the CPU, 4 DMI Lanes (about equivalent to 4 PCIE 3.0 lanes) which connect to the PCH and 24 PCIE 3.0 lanes coming from the chipset.

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Re:Intel 8th Gen Core with Radeon RX Vega GPU Presentation by bryanlarsen on Sunday January 07, 2018 @07:30PM (#16093728)

I over simplified. DMI is a PCI Express variant. I thought it had increased to 8 lanes in Coffee Lake, but I was mistaken. That makes it even more important to save some of the CPU PCIe lanes for NVMe and thunderbolt.

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Re:Intel 8th Gen Core with Radeon RX Vega GPU Presentation by monocasa on Sunday January 07, 2018 @04:30PM (#16092862)

I guess I would have preferred to see it be a client on QPI and be cache coherent with the rest of the system, rather than using PCI at all, but yeah, that's asking a bit much on this super short timeframe.

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Re:Intel 8th Gen Core with Radeon RX Vega GPU Presentation by fleetfox on Sunday January 07, 2018 @03:38PM (#16092556)

It's enough. Even top end discrete cards can't saturate 16x PCI-E 3

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Re:Intel 8th Gen Core with Radeon RX Vega GPU Presentation by monocasa on Sunday January 07, 2018 @03:58PM (#16092665)

I guess I'd like to see much tighter integration between the two chips so that we don't have to write code that avoids the PCI bus at all costs. Today you fit your entire working set into VRAM and don't touch it from the CPU, so it's sort of hard to say "it's not a deal we don't saturate the bus anyway" when that's only because we bend over backwards to not touch the bus in the first place.

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Re:Intel 8th Gen Core with Radeon RX Vega GPU Presentation by neltnerb on Sunday January 07, 2018 @04:14PM (#16092758)

I would imagine that they took the best GPU chip they could afford the space and power for, and found that 8 channels was enough for 99% of their customers?

I assume adding more channels takes space, perhaps the GPU would have had to be lower performance to add more channels?

(speculating)

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Re:Intel 8th Gen Core with Radeon RX Vega GPU Presentation by dogma1138 on Sunday January 07, 2018 @06:06PM (#16093290)

It's not like they had an option, NVIDIA doesn't do semi-customs you either buy their SOCs or their GPUs as a package.

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Re:Intel 8th Gen Core with Radeon RX Vega GPU Presentation by danmaz74 on Sunday January 07, 2018 @04:13PM (#16092753)

Isn't that the kind of optimizations that you can only make for consoles, where you know that all users have the same hardware?

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Re:Intel 8th Gen Core with Radeon RX Vega GPU Presentation by monocasa on Sunday January 07, 2018 @04:25PM (#16092832)

No, modern GPU APIs give you plenty of control over data layout, and it's the model AMD had been pimping for a while with their 'HSA' push.

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Re:Intel 8th Gen Core with Radeon RX Vega GPU Presentation by danmaz74 on Sunday January 07, 2018 @04:37PM (#16092887)

I wasn't thinking about technical constraints, but economic ones. The market that would be able to benefit from this kind of optimization would be very limited as a % of PC gamers (which is already a limited market compared to consoles AFAIK).

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Re:Intel 8th Gen Core with Radeon RX Vega GPU Presentation by fleetfox on Sunday January 07, 2018 @04:54PM (#16092955)

Could you elaborate what you mean by tighter? Isn't this the whole point MCM designs?

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Re:Intel 8th Gen Core with Radeon RX Vega GPU Presentation by monocasa on Monday January 08, 2018 @05:17PM (#16101263)

Right, exactly, but this chip is still as far away from a software perspective as a discrete card would be.

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Re:Intel 8th Gen Core with Radeon RX Vega GPU Presentation by lettergram on Sunday January 07, 2018 @03:35PM (#16092539)

I think part of the point is you wont need a GPU (at least that's the idea).

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Re:Intel 8th Gen Core with Radeon RX Vega GPU Presentation by monocasa on Sunday January 07, 2018 @03:51PM (#16092625)

I'm saying that it's using 8x PCI on the package to connect these two chips together, not additional PCI lanes going out to card slots.

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Re:Intel 8th Gen Core with Radeon RX Vega GPU Presentation by SamPutnam on Sunday January 07, 2018 @04:00PM (#16092678)

42% Growth CAGR in Retail Gaming NB Sales over the last 3 years

What are NB sales?

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Re:Intel 8th Gen Core with Radeon RX Vega GPU Presentation by eco on Sunday January 07, 2018 @04:16PM (#16092773)

Took awhile to figure it out but it's "Notebook Sales" (as opposed to DT, Desktop).

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Re:Intel 8th Gen Core with Radeon RX Vega GPU Presentation by SloopJon on Sunday January 07, 2018 @04:16PM (#16092775)

Given the context, I'd assume that NB is short for "notebook."

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Re:Intel 8th Gen Core with Radeon RX Vega GPU Presentation by deafcalculus on Monday January 08, 2018 @01:52AM (#16095106)

It looks like Intel won't be selling a socketed version of this, which means this will be available only in laptops and NUCs. I've had trouble with Linux on NUCs in the past. So, I really hope this goes into a new mac mini.

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Re:Intel 8th Gen Core with Radeon RX Vega GPU Presentation by d33 on Sunday January 07, 2018 @03:21PM (#16092463)

...but! Will it do Meltdown?

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Re:Intel 8th Gen Core with Radeon RX Vega GPU Presentation by dang on Sunday January 07, 2018 @03:53PM (#16092640)

Please don't post unsubstantive comments here.

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Re:Intel 8th Gen Core with Radeon RX Vega GPU Presentation by jjawssd on Sunday January 07, 2018 @03:33PM (#16092524)

Yes, and mega-tasking. Slide 3

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Re:Intel 8th Gen Core with Radeon RX Vega GPU Presentation by zuypaweu on Sunday January 07, 2018 @03:22PM (#16092469)

probably

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Re:Intel 8th Gen Core with Radeon RX Vega GPU Presentation by buryat on Sunday January 07, 2018 @03:31PM (#16092517)

yes, but because of the performance drop, people would have to buy more expensive cpus that run at higher frequencies.

"Checkmate" -Intel.

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