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AMD takes on Intel with new Ryzen processors for laptops

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Re: AMD takes on Intel with new Ryzen processors for laptops

#31

I really hope that those will be as good as their new CPUs and Apple would consider them if they don't have ARM in the works. It would be nice to have an octa-core in a laptop. Also would be really nice to have Vega as well — current Radeons aren't very good compared to 10-series nVidia chips.

Mac Mini!

But for some reason I dont think Apple cares anymore. They will continue to have HDD as standard and crappy Intel iGPU.

Re: AMD takes on Intel with new Ryzen processors for laptops

#32
post #9

I really hope that those will be as good as their new CPUs and Apple would consider them if they don't have ARM in the works. It would be nice to have an octa-core in a laptop. Also would be really nice to have Vega as well — current Radeons aren't very good compared to 10-series nVidia chips.

Yes, I think if the 8-core APU isn't happening this generation (obviously with 45+ W TDP), then it should definitely happen whenever AMD switches to the 7nm process.

I believe that they will actually go to 6-core APU, not 8.

The reason for this belief is that currently the basic building block of Zen line is the CCX, which is 4 cores. Raven ridge is 1 CCX and GPU, Ryzen chips are 2 CCX, EPYC CPUs are made of 4x ryzen, for a total of 32 cores. But, when AMD advertised their server platform, the promised that in the next generation there will be 48-core chips that will be drop-in compatible with current server boards. Because the memory channels/PCIE lanes need to remain positioned for 4 chips, they can't just put 6 chips in. This implies that they will go from 8-core Ryzen to 12-core Ryzen 2, and the smallest change to make that happen is probably a 6-core CCX. And if they drop that same CCX into their 2nd generation Zen APU, that would make it a 6-core chip.

Re: AMD takes on Intel with new Ryzen processors for laptops

#33
Unfortunately anyone who takes their security or privacy seriously will be totally unable to use this. Every AMD chip contains a likely backdoored system called AMD Secure Processor (formerly “Platform Security Processor” or “PSP”) [1].

This separate processor contains closed source, proprietary binaries that have complete and unrestricted access to the host. Despite a large petition for AMD to opensource this, they refused in the end. [2][3]

Anyone running AMD chipsets have a completely separate and unaccessible operating system running on their computer that they can not control nor know exactly what it's doing. [4]

Intel has the same sort of system with it's Intel Management Engine (known as Intel ME) that even the NSA didn't want to have running on their own computers. [5]

[1] http://www.amd.com/en-us/innovations/software-technologies/s...

[2] https://www.reddit.com/r/privacy/comments/5z4phx/petition_fo...

[3] https://www.reddit.com/r/Amd/comments/6msujx/what_happened_t...

[4] https://libreboot.org/faq.html#amd

[5] https://www.theregister.co.uk/2017/08/29/intel_management_en...

Re: AMD takes on Intel with new Ryzen processors for laptops

#34
post #30

Are these just as buggy as the desktop ones?

What are you referring to? Provide some links!

"50+ Segmentation Faults per Hour: Continuing to Stress Ryzen"

https://news.ycombinator.com/item?id=14936468

http://www.phoronix.com/scan.php?page=article&item=ryzen-seg...

Re: AMD takes on Intel with new Ryzen processors for laptops

#35

Unfortunately anyone who takes their security or privacy seriously will be totally unable to use this. Every AMD chip contains a likely backdoored system called AMD Secure Processor (formerly “Platform Security Processor” or “PSP”) [1]. This separate processor contains closed source, proprietary binaries that have complete and unrestricted access to the host. Despite a large petition for AMD to opensource this, they…

Looking at [4] tells me that no modern, relevant CPU supports what libreboot needs/requires, so while not a good point it doesn't help deciding between AMD or Intel - and those are, for better or worse, the only relevant CPUs for laptops/desktops.

Re: AMD takes on Intel with new Ryzen processors for laptops

#36

Unfortunately anyone who takes their security or privacy seriously will be totally unable to use this. Every AMD chip contains a likely backdoored system called AMD Secure Processor (formerly “Platform Security Processor” or “PSP”) [1]. This separate processor contains closed source, proprietary binaries that have complete and unrestricted access to the host. Despite a large petition for AMD to opensource this, they…

No psp_cleaner yet?

Re: AMD takes on Intel with new Ryzen processors for laptops

#38
post #24

Earlier quoted context omitted.

The whole package. The chip CPU + GPU is a single die.

TDP can apparently be configured to be higher or lower (12-25W). See https://www.amd.com/en/products/apu/amd-ryzen-7-2700u

That's similar to what Intel does (and somewhat less flexible, Intel's cTDP on 15W parts is 7.5~25)

Re: AMD takes on Intel with new Ryzen processors for laptops

#40

Unfortunately anyone who takes their security or privacy seriously will be totally unable to use this. Every AMD chip contains a likely backdoored system called AMD Secure Processor (formerly “Platform Security Processor” or “PSP”) [1]. This separate processor contains closed source, proprietary binaries that have complete and unrestricted access to the host. Despite a large petition for AMD to opensource this, they…

Isn't Intel doing pretty much the same thing? Seems like it's just a part of operating a modern computer :(
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