AMD's Upcoming X670 Chipset Could be A Dual B650 Package, Very Difficult for ITX Board Integration

[JUST WHO LOVE COMPUTER]

I don't know much information about AMD's next generation professors.But I am wondering that why a chipset need MCM?

 

[Crackong]

I don't know much information about AMD's next generation professors.But I am wondering that why a chipset need MCM?

To maximize production efficiency.

 

[lexluthermiester]

To maximize production efficiency.

No, it's to add addition features and capability to the board in question.

 

[Crackong]

No, it's to add addition features and capability to the board in question.

No, it is the same as chiplet designs in Ryzen
All products are based off from the same chiplet so the production capacity can be shifted around when needed.

Actually even X570 had the same concept, it shares the same design with the Ryzen I/O die.
This rumor just put it further and make X670 and B650 with the same chip

 

[trsttte]

No, it is the same as chiplet designs in Ryzen
All products are based off from the same chiplet so the production capacity can be shifted around when needed.

Actually even X570 had the same concept, it shares the same design with the Ryzen I/O die.
This rumor just put it further and make X670 and B650 with the same chip

It's not as simple as that. Ryzen works because you're putting more of the same cores, want 16 cores? 2 chiplets, want 64? 8 chiplets.

I just don't see how this would work because you're not just sticking more of the same thing together on the chipset, there are different IOs with different characteristics. And why even bother with MCM on a chipset!? They haven't even bothered moving the chipset to a better node (x570 is done at 14nm which is enough) and now they're jumping directly to a more complex and expensive packaging technology because... reasons?

All in all this is just a rumour so I'm gonna press X for doubt

 

[Crackong]

It's not as simple as that. Ryzen works because you're putting more of the same cores, want 16 cores? 2 chiplets, want 64? 8 chiplets.

I just don't see how this would work because you're not just sticking more of the same thing together on the chipset, there are different IOs with different characteristics. And why even bother with MCM on a chipset!? They haven't even bothered moving the chipset to a better node (x570 is done at 14nm which is enough) and now they're jumping directly to a more complex and expensive packaging technology because... reasons?

All in all this is just a rumour so I'm gonna press X for doubt

After all it is just a rumor, there is always a bucket of salt there.

Speaking of I/O characteristics , I thought most modern chipset uses unified PCI-E designs so MB makers are free to choose their layout ?
Take X570 for example there are PCI-E 4.0 lanes which are interchangeable for SATA ports, and LAN ports are just PCI-E lanes.
Although USB must be separated from PCI-E, but MB makers could always pick from "higher speed lower port counts" or "lower speed more port counts."
If the B650 is just a X570
By doubling it up, we could have (CPU x16+x4) + (Chipset x4+x4+x4+x4) then 8x SATA , which is totally insane for mainstream platform.

And for the cost, I can't give any comments
I have no idea which one is more expensive, one larger chip or 2 small chips in MCM package.

 

[lexluthermiester]

No, it is the same as chiplet designs in Ryzen

No, it's entirely different.

However, as was stated by the article author, it's all RUMOR at the moment. If you're gonna speculate, do keep in the realm of reality and not off in the never-never...

 

[Mussels]

It's not as simple as that. Ryzen works because you're putting more of the same cores, want 16 cores? 2 chiplets, want 64? 8 chiplets.

I just don't see how this would work because you're not just sticking more of the same thing together on the chipset, there are different IOs with different characteristics. And why even bother with MCM on a chipset!? They haven't even bothered moving the chipset to a better node (x570 is done at 14nm which is enough) and now they're jumping directly to a more complex and expensive packaging technology because... reasons?

All in all this is just a rumour so I'm gonna press X for doubt

Looking at some vague slides from the x570 launch, it reads like they get 4x 4.0 in, and output 8x 4.0 (Not magic, just assuming not all will be active at the same time)
This could be a way to add an extra 4x/8x lanes to the mobo

What if they use this to get 16x/16x with two slots again? or four 8x slots? etc.

 

[trsttte]

After all it is just a rumor, there is always a bucket of salt there.

Speaking of I/O characteristics , I thought most modern chipset uses unified PCI-E designs so MB makers are free to choose their layout ?
Take X570 for example there are PCI-E 4.0 lanes which are interchangeable for SATA ports, and LAN ports are just PCI-E lanes.
Although USB must be separated from PCI-E, but MB makers could always pick from "higher speed lower port counts" or "lower speed more port counts."
If the B650 is just a X570
By doubling it up, we could have (CPU x16+x4) + (Chipset x4+x4+x4+x4) then 8x SATA , which is totally insane for mainstream platform.

And for the cost, I can't give any comments
I have no idea which one is more expensive, one larger chip or 2 small chips in MCM package.

Looking at some vague slides from the x570 launch, it reads like they get 4x 4.0 in, and output 8x 4.0 (Not magic, just assuming not all will be active at the same time)
This could be a way to add an extra 4x/8x lanes to the mobo

What if they use this to get 16x/16x with two slots again? or four 8x slots? etc.

It seems some of the chipset connections are more specialized than just being pcie lanes but sure it's a possibility, but then we get into the why again?

I'm all for having more IO on a consumer platform especially now that they seem to be killing of regular Threadripper only keeping the pro (makes sense but sucks for anyone who bought into trx40, maybe they can provide a bios update to make them compatible with threadripper pro but doubtfull there's enough user base to make sufficient noise for them to bother), but other leaks show am5 still using only 4x lanes for the chipset, if they're bringing so much IO why not increase the chipset link to 8x like Intel did (and Intel also does a bit extra stuff with their DMI thing, it's PCIe with some extra special sauce)

Let's wait and see I guess

 

[Super XP]

Could this be deliberate to open up more PCIe lanes perhaps?
AMD should be looking at reduced cost & higher performance+ efficiency.

 

[Mussels]

It seems some of the chipset connections are more specialized than just being pcie lanes but sure it's a possibility, but then we get into the why again?

I'm all for having more IO on a consumer platform especially now that they seem to be killing of regular Threadripper only keeping the pro (makes sense but sucks for anyone who bought into trx40, maybe they can provide a bios update to make them compatible with threadripper pro but doubtfull there's enough user base to make sufficient noise for them to bother), but other leaks show am5 still using only 4x lanes for the chipset, if they're bringing so much IO why not increase the chipset link to 8x like Intel did (and Intel also does a bit extra stuff with their DMI thing, it's PCIe with some extra special sauce)

Let's wait and see I guess

Because it's using existing tech and a product they have stockpiled, one product to design and simply a choice of installing the second module or not depending on sales