AMD Ryzen Threadripper actually has 32-cores under that heatspreader
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D3M1G0D
Yeah, just saw the video by Der8auer. Quite interesting, although not too surprised. Perhaps Threadripper is just EPYC CPUs that didn't quite make it?
schmidtbag
I can't say this surprises me either. But hey, at least now we know delidding one of these things isn't a viable option.
"We are a bit puzzled as to how things are configured for the to be released 16-core threadripper. Common sense dictates that two dies would be disabled, then again there could be four dies active with 2 disabled cores per CCX. But ergo, Threadripper really is 32-core EPYC. And that opens up so many question like is that 1 DRAM channel per die ?"
I'm sure it's not as complicated as it might seem. Kind of the point of the CCXs and infinity fabric is to exchange data across the entire die. So it wouldn't surprise me if in some cases an entire CCX has no active cores, but the L3 cache, memory controller, and PCIe lanes are still available for the others to utilize. Maybe I'm way off, but how else would AMD account for defective cores in such a complex CPU? Perhaps this is why AMD never made any single-CCX Ryzens, because otherwise that might have forced it into single-channel memory.
SirDremor
That means yields are not that great, that they use only "half" of cores.
Ok, let's pretend they are.
vbetts, is this comment also too flaming for you to tolerate my presence and refusal to love AMD?
schmidtbag
http://www.tested.com/tech/1337-we-uncover-the-dead-pixel-policies-for-every-major-lcd-maker/
For once, I'd say the first part wasn't. However, I'm not sure he's going to appreciate the 2nd half :wanker:
I wouldn't say that so absolutely, but you're probably right. Keep in mind though that core count seems inversely proportionate to potential buyers. In other words, I'm sure more people have an interest in a 16 core than a 32 core. So ultimately, it works out for processor manufacturers. As with anything you manufacture, the more complex it is, the greater the chances of there being a defect. It's inevitable, and too expensive to just throw these things away, so they're limited in various ways. Take LCDs for example - manufacturers allow more headroom of dead pixels as panels get larger, because when you've got a 30" display with a dead pixel here and there, that's a lot of product that'd otherwise go to waste:
wavetrex
Holy mother of cores... !!
If they are able to build these at a decently low production cost, it means that they can compete with Intel's offerings indefinitely.
Sometime 2018:
Intel (finally) launches their 18-core uber-expensive 1999$ top of the line HEDT.
"We have moar corez !"
AMD:
"yawn" ... launches 24 cores TR
Intel ups the frequency 100Mhz in despair... TDP goes through the startosphere.
AMD:
"more yawn" ... launches 32 cores TR. BANG. BANG. Ur Dead.
D3M1G0D
schmidtbag
RooiKreef
Oh my this is very interesting. Hopefully the motherboard manufacturers will launch a BIOS update on the motherboards to unlock these cores. Sort of how the old Phenom CPU cores could get unlocked. If that is the case, Intel will have to seriously reconsider what they bring out next.
D3M1G0D
Loophole35
tsunami231
i can see it now if they dont cut/break those extra core people will try to enable them
schmidtbag
Loophole35
It's only wasted silicon if those disable parts are perfect otherwise it's a way to ensure you use as much o the yields as possible.
Remember Ryzen is manufactured as 4 core CCX's and "glued together".We assume they are required to be in two CCX packages. So you can basically always pair two perfect cores with two perfect cores.
[spoiler]http://www.techpowerup.com/img/17-03-10/bc345e6356e6.jpg[/spoiler]
MorganX
Intel Shennanigans?
Is it possible they can pull an Intel? A more successful one? You can purchase and unlock code for BIOS to unlock moar cores?
Stairmand
Remember when we had BIOS hacks to unlock the 4th core on the old AMD triple core CPU's.
How freaking cool would that be.
tsunami231
Loophole35
tsunami231
true but from greed stand point it great way to milk something :3eyes:
Aura89
I'm not surprised by this, in fact i expected it to be like this, considering its the same setup as their servers.
I'm curious though, does that mean a 16 core chip is 4+4+4+4?
Hey look it's Mr. Nonsensical back to tell us all about his mass knowledge of absolutely nothing taking information and turning it around without absolutely any proof all to hound on AMD for no reason. A whole lot of nonsense.
It's nice to see you, i really hope you get banned soon.
MorganX