AMD Ready with Zen 4 3DV Cache Chiplet, Expects to Repeat 5800X3D Magic Versus Raptor Lake

[AM4isGOD]

Chances are, some people will hold off on Zen 4 till the 3D parts come out. Unless you have enough cash spare to buy a non 3D and 3D part when they become available, but not everyone will have.

 

[Mussels]

Sweet spot for Zen3 was not 2000Mhz considering the graps AMD used and 'sweet spot' in my understanding was 3800Mhz for zen3
I'm sure, if the sweet spot is 6000Mhz for AM5 IF and DDR5, it will be possible to go higher than that.
Also, wasn't the sweet spot aka 3000 mhz IF or 6000Mhz perceived as the AMD official supported speed for the AM5 and Zen4? Just like the 3200Mhz was for Zen3?

IF vs RAM speed, it's halved
Zen 3's IF sweet spot was 2000, but no one could reach it: so 1900 became the next best thing for 3800 DDR4 that was easier to achieve

The above suggestions for 2800/5400 being common and 3000/6000 being the sweet spot, would fit and make sense - and that extra bandwidth would absolutely explain a lot of zen 4's performance gains

 

[ratirt]

IF vs RAM speed, it's halved
Zen 3's IF sweet spot was 2000, but no one could reach it: so 1900 became the next best thing for 3800 DDR4 that was easier to achieve

The above suggestions for 2800/5400 being common and 3000/6000 being the sweet spot, would fit and make sense - and that extra bandwidth would absolutely explain a lot of zen 4's performance gains

I read AMD's keynote and they have said the sweet spot was 3733Mhz. I think there is a some sort of misunderstanding about what the sweet spot is and what is the maximum IF working 1:1 ratio.
The question is. Is the IF 3000Mhz for Zen4 max or the sweet spot since according to the picture below, sweet spot is not the max you can do with a Zen CPU according to AMD.

 

[Mussels]

I read AMD's keynote and they have said the sweet spot was 3733Mhz. I think there is a some sort of misunderstanding about what the sweet spot is and what is the maximum IF working 1:1 ratio.
The question is. Is the IF 3000Mhz for Zen4 max or the sweet spot since according to the picture below, sweet spot is not the max you can do with a Zen CPU according to AMD.
View attachment 259842

Ah yes, that's the highest they automatically do 1:1 - but if you manually set it, they tend to work higher


The 4200+ for example only happens on the APU models, or without the IF being 1:1

 

[ratirt]

Ah yes, that's the highest they automatically do 1:1 - but if you manually set it, they tend to work higher


The 4200+ for example only happens on the APU models, or without the IF being 1:1

I think everyone knows that but if the 'sweet spot' is not a uniform expression there is no way to say what AMD means by it or other people using the phrase since it can be interpreted differently each time.