Limits of iGPUs and CPUs?

[whm1974]

So I'm thinking of the limitations of CPUs with iGPUs and how they fight for Resources... Especially Available Memory and Memory Bandwidth. With the last, would designers need to use some exotic tech such as RAM made out of Carbon Nanotubes/Buckyballs in order to Overcome with this? I'm think of something like HBM but with a single die in a sort of socket with 1024 connection to the CPU die. Kind of like AMD has done with their I/O die with current Ryzen CPUs. How don't know how dense such memory dies would be, but perhaps 32GB for consumer 8-Core CPUS, 32GB? I mean up to 8GB for the iGPU/24 for CPU should be enough right? At least at first...  

[Silentprototipe]

The problem is that no one is gonna buy an APU like that when you can buy a CPU and a GPU for the theoretical cost of this APU. However as a mobile thing its plausible although it would be quite expensive and it would prorbably still make sense to do a DGPU, CPU combo. AMD more than likely has the tech to do it its just expensive to do so and wouldnt sell well  

[Bombastinator]

*points at upcoming console designs*

[whm1974]

56 minutes ago, Silentprototipe said:

The problem is that no one is gonna buy an APU like that when you can buy a CPU and a GPU for the theoretical cost of this APU. However as a mobile thing its plausible although it would be quite expensive and it would prorbably still make sense to do a DGPU, CPU combo. AMD more than likely has the tech to do it its just expensive to do so and wouldnt sell well  

Well AFAIK no one has yet found a low cost reliable method of manufacturing large numbers of Carbon Buckyballs/Nanotubes of the type needed for semiconductors.

 

the last I read, carbon nanotubes were used to make something outright silly ass enforced golf clubs and tennis rackets... Rather expensive ones at that....

[Bombastinator]

1 hour ago, whm1974 said:

Well AFAIK no one has yet found a low cost reliable method of manufacturing large numbers of Carbon Buckyballs/Nanotubes of the type needed for semiconductors.

 

the last I read, carbon nanotubes were used to make something outright silly ass enforced golf clubs and tennis rackets... Rather expensive ones at that....

The problem with nanotubes is a 1mm long nanotube is an accomplishment.  I’ve heard of companies making sort of dumbbell shaped nanotubes with big knobs on the ends and using them in what amounts to fiberglass.  Buckyballs are near useless.  They’re incredibly inert.  Last useful thing I heard they were used for is theyre about the size of a blood cell but they’re pretty regular so someone made some to use in calibrating microscopes.  They’re actually poisonous because they’re small enough to fit in a blood vessel and they’re so inert the body can’t get rid of them.

[Silentprototipe]

13 hours ago, Bombastinator said:

*points at upcoming console designs*

The consumer would never get the pricing Sony and Microsoft gets for their APU's 

 

12 hours ago, whm1974 said:

Well AFAIK no one has yet found a low cost reliable method of manufacturing large numbers of Carbon Buckyballs/Nanotubes of the type needed for semiconductors.

 

the last I read, carbon nanotubes were used to make something outright silly ass enforced golf clubs and tennis rackets... Rather expensive ones at that....

Well as with all things tech its yet to be made low cost. They always have said that about new techologies so give it 5-10 years and it will probrably be common. Though most of IGPU performance is gonna come from architectural improvements more than anything than AMD or Intel making larger IGPU's 

[Bombastinator]

24 minutes ago, Silentprototipe said:

The consumer would never get the pricing Sony and Microsoft gets for their APU's 

 

Well as with all things tech its yet to be made low cost. They always have said that about new techologies so give it 5-10 years and it will probrably be common. Though most of IGPU performance is gonna come from architectural improvements more than anything than AMD or Intel making larger IGPU's 

So? it’s also not a standard zif.  Still essentially similar.

[Silentprototipe]

2 minutes ago, Bombastinator said:

So? it’s also not a standard zif.  Still essentially similar.

Right, However OP is asking about consumer APU's with IGPU's that powerful. Console APU's are a custom solution made for Sony and Microsoft expected to sold in the millions. AMD is capable of it for a customer like Microsoft or Sony but for someone like us they wouldnt do it unless OEMs demand such a thing which then would trickle down to us