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AMD Discussion

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Maybe Bulldozer was not such a waste of time and there's a reason to follow down to 12FDX.
 
koyoot

koyoot

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https://forums.anandtech.com/threads/amd-x399-！！！！！.2501129/page-3#post-38797785

According to this, HEDT AMD platform comes in few months. Expand the quote in this linked post. It appears also, that the reason why there is not that much MoBos right now is because they are working on second revision of them. Interesting in this context.

16 cores/32T, 4 channel memory controllers, and around 1000$ price tag? Not bad, at all.

I think at this price tag it will murder everything Intel can offer in HEDT range. Skylake-X can offer maximum 12 cores, at a higher IPC and higher clock speed obviously, but... at what price?

The only thing that Im not sure about credibility is the mentioning of LGA socket for AMD. Well time will tell, about this.

Multithreading performance is going to be a monster.
 
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If you want a new PC now, just go for Ryzen 7. It makes no sense to wait for such rumours.
 
koyoot

koyoot

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I have a PC right now ;).

What I would like to build is SFF PC based on Ryzen APU with HBM2.
 
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koyoot

koyoot

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AidenShaw said:
You shouldn't need a new design to shrink the cache. Most lower-end chips start out as identical to higher end chips, but once defective bits are trimmed they become low-end.
Click to expand...
This is true for Intel, but not for this design. 6 core Ryzen will have exactly same amount of L3 cache as 8 core. Cache segment is non separable. Even 2 core CPU based on this design would have 8MB L3 cache, because that is the amount connected to each CCX. Disabling the L3 cache, even in part, in the CCX disables whole CCX.
 
koyoot

koyoot

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power_gaming.png

power_multi_thread.png

In gaming the CPU is heavily underutilized.

https://www.techpowerup.com/reviews/AMD/Ryzen_7_1800X/14.html
 
D

deconstruct60

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Mar 10, 2009
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Jack Burton said:
Nice. Any chance we could see Zen in an iMac since it compares favorably to 7700k?
Click to expand...

This year? Probably not if Apple is going to upgrade the iMac this Spring. There is also a compares dimension that matters in having the highly stable and bug free Thunderbolt boot environment to go along with the option. It isn't about just picking "drag race' benchmarks to completely drive parts selection. There is other stuff they'll have to do.

This set of Ryzen products also don't solve and/or address the 21.5" iMacs either as there are no iGPUs.

It seems to new and "bleeding" edge for Apple for 2017. 2018 (which design should be in progress at this point) would likely have better changes. A "lab prototype" iMac that almost no one ever sees, yes.
 
Z

Zarniwoop

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deconstruct60 said:
This year? Probably not if Apple is going to upgrade the iMac this Spring. There is also a compares dimension that matters in having the highly stable and bug free Thunderbolt boot environment to go along with the option. It isn't about just picking "drag race' benchmarks to completely drive parts selection. There is other stuff they'll have to do.

This set of Ryzen products also don't solve and/or address the 21.5" iMacs either as there are no iGPUs.

It seems to new and "bleeding" edge for Apple for 2017. 2018 (which design should be in progress at this point) would likely have better changes. A "lab prototype" iMac that almost no one ever sees, yes.
Click to expand...
Or similarly as the jump from IBM to Intel happened step by step, AMD transition could happen in steps.

First breed, this spring:
  • iMac Pro with Ryzen 1600, 1700X and 1800X + GPU with HDR display
  • Mac Mini with 35W A10 Pro APU, DDR4, B350. Apple will promote graphics boost.
  • entry level iMac 21.5" with 65W A10 Pro, DDR4, B350
  • entry level iMac 27" with 95W A10 Pro, DDR4, B350
Second wave:
  • Mac Pro with Naples architecture
Third Wave:
  • iMacs with ZEN based APU/NPU's
  • Pro Laptops
Final stage:
  • Macbook
  • 2nd gen Mac Mini and entry iMac's
But the correct question is, is macOS ready for AMD? There's not much sense to make the jump unless Apple can enable HSA for Metal. Currently it is disabled in macOS, but it is enabled in iOS 10. My educated guess is that this is what Apple wants from AMD, to enable HSA for macOS. Is it a hidden feature in 10.12.4, or do we need to wait until 10.13?
 
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