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AMD Zen 3 (5000 Series), rumored 17% IPC gain.

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CuriousTomCat said:
14nm to 12nm is a 14% shrink
7nm to 5nm is a 28% shrink
5nm to 3nm is a 40% shrink

Each future incremental reduction has a bigger impact than the last
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Doesn't that depend on the manufacturer? Considering they all seem to have different definitions of what constitutes 10nm 7nm 14nm etc?
 
Hmm, 5nm was the point I expected another doubling of L3 cache.
Imagine... 64 MB L3...
(addressable by a single core, yes I know 3900X already has 64MB, but only 16MB that a core can utilise)
 
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If the chat going round is true, that the 4000 series is going to be late but on and enhanced (?) 5nm then intel is truly in massive trouble.
Makes sense i suppose, drop the refreshed Zen2 cpus this summer with 5-10% improvements (hopefully not just 3% or something pointless like that) and then come Q1 2021 drop a Zen3 shaped nuke on Intel.
 
sideways14a said:
If the chat going round is true, that the 4000 series is going to be late but on and enhanced (?) 5nm then intel is truly in massive trouble.
Makes sense i suppose, drop the refreshed Zen2 cpus this summer with 5-10% improvements (hopefully not just 3% or something pointless like that) and then come Q1 2021 drop a Zen3 shaped nuke on Intel.
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5nm would be huge. It's looking (potentially) very exciting times. Pressure like that would surely provoke Intel into a massive effort to catch up.
 
I hope Zen 3 is 7nm as that would mean the 17% IPC gain is down to actual architectural improvements.
Moving to 5nm alone has a 20% IPC improvement. It would be amazing if they did both then it would be a 37% IPC improvement in total but I doubt they'd give us that much.

I'd be happy with a 17% IPC improvement on 7nm for Zen3 then move to 5nm for Zen4 for the additional 20% IPC to twist the knife in Intel.
 
CuriousTomCat said:
I hope Zen 3 is 7nm as that would mean the 17% IPC gain is down to actual architectural improvements.
Moving to 5nm alone has a 20% IPC improvement. It would be amazing if they did both then it would be a 37% IPC improvement in total but I doubt they'd give us that much.

I'd be happy with a 17% IPC improvement on 7nm for Zen3 then move to 5nm for Zen4 for the additional 20% IPC to twist the knife in Intel.
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Sorry how does reducing down to 5nm give us a 20% IPC improvement?
 
IPC has little to do with what node your on, well apart from allowing denser and more transistors per package and at a lower power but at the end of the day IPC needs to be designed it just doesn't improve because of a node shrink.

If they are true (and i have a large pinch of salt for this one) it would explain the XT versions of Zen2 - AMD must be really sure of big gains for Zen 3 if higher clocked Zen2 comes out - no point in saying the 4800 is 20% faster than the 3800 then dropping out the XT version so that the new 4800 is only 15% better than the old model.
 
Can you guys even hear yourselves? 17% improvement here 37% there! These are cpu's ffs and *not* gpu's, did you forget?? And they wonder why AMD always suffer from the HypeTrain (tm) fiasco's :eek:

:p


Keep your expectations in check children and thy shalt not be majorly disappointed...
 
Gerard said:
Never even realised he got the boot, he had all the answers, "amd just need to do this for a gpu", "amd need to do this for a cpu". Are we sure he hasn't been headhunted by amd to steer them in the right direction?
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Lol. Yeah. Cracked me up. Like as if it was that simple. Tried to explain things to him, but he would just bang on like he knew better and how he was writing a scientific paper etc etc. Guy was a bit special... :p:D
 
Stu999 said:
Sounds like a load of rubbish to me. So unlikely they would do a last minute switch to 5nm. I may well be wrong but I doubt it.
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What makes you think it is last minute? When it comes to these leaks and rumours, a lot of the time we only hear about them weeks, months, maybe even years after it is intially discussed internally at companies. (This applies across multiple industries)

Let us work on the assumption that this is true, AMD could have easily been considering/planning this from last year or even 2018. They could have had the team, design zen 3 with a contingency for it to be built on 5nm.

P.S. For the record i am not saying that this rumour is true or false
 
This is AMD's roadmap. Zen 3 is 7nm.

P5we4bMzAGTrBbBQ6cFvB4-650-80.jpg
 
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