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

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opethdisciple said:
Couple it be that Zen 3 will be PCI-E 4 ONLY hence why the 400 series boards wont have the support for the next gen CPU's.
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Dont see that being the case really. The PCIe standard seems to have inbuilt backwards compatability. I.e. you can put a x4 card into a x3 slot ( it'll work at x3) and you can put a x3 card into a x4 slot ( again, work at x3 ).

Plus can you imagine the outcry if the CPU only supported x4 devices ... what about nearly every add on card that isn't a GPU ... sound cards, capture cards etc etc ... they wouldn't work if required x4.
 
PCI-E 4 only CPU's. Backwards compatible peripherals.

I believe the reason why the 400 series boards are locked out of Zen 3 are more than simply BIOS size limitations.

There is a more technical reason and PCI-E 4 could be it.

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Actually thinking about it, it doesn't sound right either because this would probably have some sort of lock out for X570 too.
 
Pretty sure there's no technical reason of that nature because it would have been known in engineering at a way earlier time, like the hardware unboxed video says, it appears that this was a recent decision because it contradicts their earlier communication and they could have used compatibility as a selling point for X570.
 
It doesn't explain why system integrators and motherboard OEMs were told B450 would work until this month. AMD would have already locked down the design specifications for Zen3 by now.
 
To be honest the only reason I am a little annoyed is that I want a 4000 series but didn't want the hassle of installing windows and all my work environment again, Think I will bite regardless and try and upgrade board without doing a reinstall and see how it goes, no rush though until I get a big Navi GPU first.

Are we defo about x470 boards being locked out ? Who knows with the new consoles coming maybe I will need PCIE 4 for the SSD speeds!!
 
Hang fire and wait and see. Nothing in concrete yet some might, some might not. It’s still a bit vague although Amd are not “officially” supporting you may see something.

Edit. According to the video above from 1:08:00 he reckons you’ll get no compatibility with zen3 on 400 chipsets at all. The 500 chipsets are just different requiring different Agesa codebase. So take that as a no. Buy a new motherboard or switch to Intel if you don’t want Amd.
 
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Doobedoo said:
Hang fire and wait and see. Nothing in concrete yet some might, some might not. It’s still a bit vague although Amd are not “officially” supporting you may see something.

Edit. According to the video above from 1:08:00 he reckons you’ll get no compatibility with zen3 on 400 chipsets at all. The 500 chipsets are just different requiring different Agesa codebase. So take that as a no. Buy a new motherboard or switch to Intel if you don’t want Amd.
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Ok cool, will wait regardless, I have a 3700X so will be fine for the time being, wont be going back to intel in any rush, loved the ryzen 2600 and now the 3700X, just a little annoyed as wanted a 4000 series however I like new things so getting a 670 board is actually quite nice if it wasnt for the pain of doing so.
 
welshrat said:
Ok cool, will wait regardless, I have a 3700X so will be fine for the time being, wont be going back to intel in any rush, loved the ryzen 2600 and now the 3700X, just a little annoyed as wanted a 4000 series however I like new things so getting a 670 board is actually quite nice if it wasnt for the pain of doing so.
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Yep not ideal but not the end of the world either.
No one needs the 4000 series they’ll either needs to spend money or just just accept it.

Still looks bad and they’ve positioned themselves between a rock and a hard place on this one.
 
welshrat said:
To be honest the only reason I am a little annoyed is that I want a 4000 series but didn't want the hassle of installing windows and all my work environment again, Think I will bite regardless and try and upgrade board without doing a reinstall and see how it goes
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If i didn't already have an x570 board i would likely do the same thing if it turns out to be a good boost in performance, since Zen 4 is rumoured to be less of an upgrade than Zen 3 so it makes more sense for those on Zen 3 to skip Zen 4. Gives time for better and cheaper DDR5 to come along as well.
 
Perfect_Chaos said:
since Zen 4 is rumoured to be less of an upgrade than Zen 3
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That's not right, Zen 3 is an evolution of Zen 2 so the gains will be tangible, but not earth-shattering (8 core CCX, shared L3 chiplet cache, improved latency, etc.). Zen 4 is getting a complete redesign of the chiplet, shrink to the IO die and a boat load of other things (allegedly).

Zen 4 is the big leap, not Zen 3.
 
Zen3 will be probably a decent leap for gaming IMHO,as we saw what a single CCX did for the Ryzen 3 3300X. It should be a nice improvement,especially for older game engines. I expect Zen4,will be Zen3 evolution with more cores due to 5NM,more memory bandwidth and improveed I/O. So it probably is the bigger improvement overall in terms of other areas.
 
Darn. Was hoping to get more life out of my B450.

I have 2600 and whilst I have zero need to upgrade, I was hoping when the time comes I could jump to a Ryzen 4000 CPU. Suppose my options now are either stick the best Ryzen 3000 CPU I can afford when the time comes (skip Ryzen 4000 and wait for Ryzen 5000), or new motherboard with the pain of a Windows reinstall.
 
Again.... all comes down to PCI-E4. Which a lot of people have said was irrelevant.

It ain't irrelevant. It is the VERY reason defining whether one stays on a PCI-E3 Gen board or upgrades.

If the GPU's to come make use of the bandwidth (excluding if SSDs do because they ain't as exciting as GPUs :D) then PCI-E4 will become a very important defining feature.
 
kitfit1 said:
Not really and you know that full well @Martini1991 . Any ROM size difference is down to mobo vendors. The point i made was that AMD or indeed Intel if you like, is that AMD need to make ROM size into any requirement for the lifespan of any cpu.............as indeed Intel should as well.
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Making demands that Motherboard vendors to put large ROM chip's on their boards is one thing, them actually doing that is another.

Also: like the vast majority of AMD's customers imagine you're not tech savy, you buy an older Zen+ board with a Zen 2 processor because you're reading the hype around mixed platform support and you don't fully understand the nuances, it arrives, you put it together and it doesn't work, to you its broken, you send it back.
Then this happens:

The Retailer: Nothing wrong with this, RMA denied.
You: But it doesn't work????
The Retailer: you have to find an older CPU to put in the board first, then flash the BIOS to one that supports Zen 2 and then it will work.
You: What? WTF is Zen 2? What CPU do i need? I don't know how to flash the BIOS??????
The Retailer: If you write to AMD they will send you an older CPU to loan so you can flash the BIOS, Google "B450 BIOS flashing" to learn how to do it.

What sort of an impression are you going to get about AMD from that ^^^ ?
 
opethdisciple said:
If the GPU's to come make use of the bandwidth (excluding if SSDs do because they ain't as exciting as GPUs :D) then PCI-E4 will become a very important defining feature.
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Future SSDs are going to be very exciting if you're a gamer. What's going into the new consoles is going to cause big problems for PC ports once devs get going properly. That's probably more of an impact on PC gaming than GPUs.
 
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