Discussion Speculation: Zen 4 (EPYC 4 "Genoa", Ryzen 7000, etc.)

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Vattila

Senior member
Oct 22, 2004
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Except for the details about the improvements in the microarchitecture, we now know pretty well what to expect with Zen 3.

The leaked presentation by AMD Senior Manager Martin Hilgeman shows that EPYC 3 "Milan" will, as promised and expected, reuse the current platform (SP3), and the system architecture and packaging looks to be the same, with the same 9-die chiplet design and the same maximum core and thread-count (no SMT-4, contrary to rumour). The biggest change revealed so far is the enlargement of the compute complex from 4 cores to 8 cores, all sharing a larger L3 cache ("32+ MB", likely to double to 64 MB, I think).

Hilgeman's slides did also show that EPYC 4 "Genoa" is in the definition phase (or was at the time of the presentation in September, at least), and will come with a new platform (SP5), with new memory support (likely DDR5).

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What else do you think we will see with Zen 4? PCI-Express 5 support? Increased core-count? 4-way SMT? New packaging (interposer, 2.5D, 3D)? Integrated memory on package (HBM)?

Vote in the poll and share your thoughts! :)
 
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nicalandia

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Jan 10, 2019
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Anandtech Performance is out for The Ryzen 7000, but the review is not out yet, but the numbers are already in the bench suit.

Here the comparison of the 7950X vs 5950X



1664196563379.png

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moinmoin

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Jun 1, 2017
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Raphael and Dragon Ridge will in most cases be paired with dGPU, so the missing AV1 won't be a problem. If even Phoenix was missing It, then that wouldn't be good.
I kinda doubt Phoenix will introduce AV1 encoding (unless Xilinx contributes a successor to VCN already). AV1 decoding is in all of them.
 

tamz_msc

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Jan 5, 2017
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Anandtech Performance is out for The Ryzen 7000, but the review is not out yet, but the numbers are already in the bench suit.

Here the comparison of the 7950X vs 5950X



View attachment 68104

View attachment 68105
As usual AT with their useless GPU-bound gaming benchmarks.
 

Abwx

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Apr 2, 2011
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Computerbase review in two articles, first is for design caracteristics and applications perf :


And for the gamers :


 

nicalandia

Diamond Member
Jan 10, 2019
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Techpowerup Review is Up

IPC on Cinebench R15 are basically a match between Zen3, Alder Lake and Zen4.

1664198003337.png

Time to move to a different app to test IPC for them
 

utahraptor

Golden Member
Apr 26, 2004
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The Anandtech review mentioned the IGPU could "possibly be used in light gaming." Has anyone found a review showing any benchmarks in that type of scenario. I am wondering if light gaming means solitaire or some kind of actual game. It says it even has ray tracing. Like could it run Battlefield 5 at resolution 320x240 and ray trace or is it just on paper and not actually usable?
 
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inf64

Diamond Member
Mar 11, 2011
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Gaming looks to be roughly a tie between Zen 4, fastest Alder Lake 12900KS and 5800X3d. Bodes very nicely for Zen 4 with Vcache. IPC in the apps is ~12% as per Computerbase review, which is more or less what AMD supplied (~13%).

I missed the gaming performance (I expected that). ST and MT gains are more or less as expected - Computerbase changed the app selection in their review so it's not really 1:1 comparison. Overall, impressive performance (the Eco mode results are crazy good) and I'm looking forward to Vcache models.
 

uzzi38

Platinum Member
Oct 16, 2019
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The Anandtech review mentioned the IGPU could "possibly be used in light gaming." Has anyone found a review showing any benchmarks in that type of scenario. I am wondering if light gaming means solitaire or some kind of actual game. It says it even has ray tracing. Like could it run Battlefield 5 at resolution 320x240 and ray trace or is it just on paper and not actually usable?

Well it can almost do CS;GO at 1080p low.

Almost.

1664198806793.png
 

Bigos

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Jun 2, 2019
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Can anyone even read the AnandTech review? There are so many typos it looks like a SPAM mail...

Looks better now.

This has been byhrough superior power efficiency, as Zencally a Zen 3 refinement, but on the new TSMC 5 nm process node (from TSMC 7 nm). This efficiency has allowed AMD to increase the overall TDP to 170 W from the previous 105 W but without too much penalty.
 
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krumme

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Oct 9, 2009
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Computerbase review in two articles, first is for design caracteristics and applications perf :


And for the gamers :


Grab them while you can. The servermarket is going to take all with that efficiency, unless they can wait for zen5.
 

eek2121

Platinum Member
Aug 2, 2005
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Seems kind of eh for Zen 4 except for the crazy high frame rate games.
Gaming looks to be roughly a tie between Zen 4, fastest Alder Lake 12900KS and 5800X3d. Bodes very nicely for Zen 4 with Vcache. IPC in the apps is ~12% as per Computerbase review, which is more or less what AMD supplied (~13%).

I missed the gaming performance (I expected that). ST and MT gains are more or less as expected - Computerbase changed the app selection in their review so it's not really 1:1 comparison. Overall, impressive performance (the Eco mode results are crazy good) and I'm looking forward to Vcache models.


Steve from GN tested with a 3090ti FTW3 and ended up still being GPU bottlenecked even at 1080 medium settings in most games.

I suspect that, from a gaming perspective, we will need faster GPUs to see how much of a performance uplift the new CPUs have.