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AMD to unveil Zen 4 CPUs at CES 2022

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zen 4 with better 3d cache integration + ddr5 which provides much more bandwitdh than ddr4 should be a beast. if Zen 3 v-cache is similar to ADL despite 10-15% IPC deficit, Zen 4 will be at worst similar to RPL, but zen 4 will have more polished and better integrated 3dcache, + if they clock it higher and allows OC then Zen 4 could beat it easily + ddr5 which can alone increase gaming performance by good margin so Intel won't have that advantage anymore, both brands can utilize newest RAM, but Zen 4 having much more cache will have huge advantage in games that can utilize it. CPU war is so fun, can't wait to see new generations.
 
Yeah Zen 4-3D is going to be interesting.

Zen 3-3D is impressive for a 4.5Ghz DDR4 CPU but its not that special, except the few occasions where it is.....

With high clocks and DDR5 it might just be ####### insane.
 
And Zen 5 will be completely new design, new foundation for future iterations, i predicted they used most resources for Zen 5 which should bring massive IPC increase, and atop of that it will use extensively Xilinx accelerators for A.I and machine learning, AMD is growing very fast, Intel will have hard times every year, no more relaxing like in skylake era, nice. And best of all that is AM5 will support it, it's no surprise that first generation AM5 motherboards are so good with extreme power capabilities and bandwidth, they made sure there would be no bottlenecks or power restriction in the future, AM4 give them good feedback, while with Intel you get only 2 generations support, and second generation is just refresh lol.
 
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8 to 10% IPC gain, on top of that 5.6Ghz that we have seen, could be higher.

So <15% ST is more like <20%, which isn't bad, i mean.... are we now at that stage where we sniff at a 20% ST over generation gain? Who do we have to thank for that and do we need to ground ourselves a little? :)
 
On the CDNA slide they showed Infinity cache below the GPU cores. Wonder if Zen 4 v-cache will be the same where they put the CCD above the cache die, this means they could use 2 cache dies if they wanted to go with a nutty L3 amount and it would also help with the heat transfer issue.

Might also explain the thickness of the Zen 4 IHS since with stacked dies they can just make a slightly thinner IHS and they don't have to go through a die thinning process to make the z-height work.
 
timorous said:
On the CDNA slide they showed Infinity cache below the GPU cores. Wonder if Zen 4 v-cache will be the same where they put the CCD above the cache die, this means they could use 2 cache dies if they wanted to go with a nutty L3 amount and it would also help with the heat transfer issue.

Might also explain the thickness of the Zen 4 IHS since with stacked dies they can just make a slightly thinner IHS and they don't have to go through a die thinning process to make the z-height work.
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Oh.... good thinking, that would be 160MB of L3, if they use the same 6nm for the cache that they do on Zen 3-3D
 
humbug said:
8 to 10% IPC gain, on top of that 5.6Ghz that we have seen, could be higher.

So <15% ST is more like <20%, which isn't bad, i mean.... are we now at that stage where we sniff at a 20% ST over generation gain? Who do we have to thank for that and do we need to ground ourselves a little? :)
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Its sustain clocks also.
Most will miss that
 
tommoT.Striker said:
I wonder how they've managed to get Zen4 to clock so high. Been long old journey to get there, will be interesting to see the all core clocks, power and how temps will cope.
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They have been doing very well in increasing clocks on both GPUs and CPUs while still increasing IPC and making sure performance scales with clocks (this is certainly no Bulldozer).

They used to struggle with these things vs the competition and now they seem to be matching or exceeding them. I suspect both RDNA 3 and Zen 4 will be rather impressive on this front.
 
Alder Lake scores 2000 ST in R23

I think Raptor Lake will score 2300 in R23

The 5950X scores 1650, if its reaches 6Ghz ST that's +20%, (1920) +10% IPC = 2178, that's +5% to Raptor Lake.

I do think it will match Raptor Lake in MT

Zen 3 with slightly lower clocks and DDR4 vs DDR5 is 90% the gaming performance of Alder Lake, i think with the significant boost in clocks, the small bump in IPC and DDR5 Zen 4 will at least match Raptor Lake in gaming.

And then there is Zen 4-3D, i think that will beat Raptor Lake convincingly, in games.

On top of that i think there is a wild card up AMD's sleve, i'm not going to give too much away of my thinking but.... Zen 4C
 
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