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*** AMD "Zen 4" thread (inc AM5/APU discussion) ***

I'm just holding out for the APU's to become available through the normal retail channels. I want to cut down to an APU, but not being able to easily get them is frustrating.
 
Rumours suggest that these are going to be monstrous, not to anyone's surprise..
 
didnt see this thread earlier although i was on the phone and only went back 1 page.

29% ipc is mad difference. back in the day my nehalem cpu lasted 10 years and was still going strong till i switched to zen1. now zen4 planning to make my cpu look like an intel atom lol. big leaps in ipc will deffo make the upgrade itch all the more scratchier.
 
Cyber-Mav said:
didnt see this thread earlier although i was on the phone and only went back 1 page.

29% ipc is mad difference. back in the day my nehalem cpu lasted 10 years and was still going strong till i switched to zen1. now zen4 planning to make my cpu look like an intel atom lol. big leaps in ipc will deffo make the upgrade itch all the more scratchier.
Click to expand...

A 5800X is already 35% faster per clock and clocks 25% higher. :)

An Octa core Zen 4 would make your 1700 octa core look like a quad core :D

Who said Moore's law was dead?
 
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Currently on a 2600, I think Zen4 may be the perfect time to upgrade. The difference in performance will be staggering.

AMD truly are doing wonders, I'm so happy. Not only have the caused intel to pick up the slack (which imo is a good thing, because competition) but I think once software catches up with the power of this hardware, we can make huge strides in just about everything
 
Cyber-Mav said:
excellent. if ipc continues to increase at this rate then i will be back to dual core cpu come 2025.
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I get that the IPC gains have been tremendous, but dual core? Nobody should be using less than 4 cores in 2021, even in a laptop let alone a desktop
 
ZP9 said:
Currently on a 2600, I think Zen4 may be the perfect time to upgrade. The difference in performance will be staggering.

AMD truly are doing wonders, I'm so happy. Not only have the caused intel to pick up the slack (which imo is a good thing, because competition) but I think once software catches up with the power of this hardware, we can make huge strides in just about everything
Click to expand...
While I think Zen 4 will be good I can also foresee teething issues similar to when Zen arrived so I think Zen 5 will be the right time to make the jump once the early adopters have ironed out the bugs.
 
ZP9 said:
I get that the IPC gains have been tremendous, but dual core? Nobody should be using less than 4 cores in 2021, even in a laptop let alone a desktop
Click to expand...

Technically in homogenous CPU designs the only reason you ever need or want more than one core is that you've hit a wall on your IPC. e.g. assuming same clocks, 1 core at 2x IPC is always better than 2 cores at 1x IPC. 1 core at 4x IPC is always better than 4 cores at 1x IPC, etc...
 
philo-sofa said:
Zen 2 and 3 did have amazing IPC gains but this 29% is pretty incredible.... real or wccftech clickbait?
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The source is garbage. But even that garbage source clarified that what they meant was that a Genoa ES was 29% faster a Milan at similar clocks.

so yeah, BS and everyone went ahead with it.
 
HACO said:
Technically in homogenous CPU designs the only reason you ever need or want more than one core is that you've hit a wall on your IPC. e.g. assuming same clocks, 1 core at 2x IPC is always better than 2 cores at 1x IPC. 1 core at 4x IPC is always better than 4 cores at 1x IPC, etc...
Click to expand...

You can never achieve 100% IPC increase, it's much easier to add cores and scale on it depending on your scaling performance.

Also, the modern CPU cores are so small, that it is virtually impossible to offer only 1 core.
Except if you want your core to be 150 sq mm which is insane.
 
Joxeon said:
While I think Zen 4 will be good I can also foresee teething issues similar to when Zen arrived so I think Zen 5 will be the right time to make the jump once the early adopters have ironed out the bugs.
Click to expand...

Fair point, but I'm usually not one to get something on release anyway. I like to wait it out and see if there are any glaring issues, if everything is fine though then I'll happily jump in - if not I'll have to wait for Zen5 which is long, but at the same time I know AMD will have another year of crazy gains so that works too
 
Cyber-Mav said:
dunno about you but i will take dual core skylake over a q6600 anyday.
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Whilst that may be true, still doesnt mean that a skylake dual core isnt hot trash for todays standards.

quad cores with SMT should be the bare minimum imo. Same goes for the 4gb vs 8gb ram argument.
 
HACO said:
Technically in homogenous CPU designs the only reason you ever need or want more than one core is that you've hit a wall on your IPC. e.g. assuming same clocks, 1 core at 2x IPC is always better than 2 cores at 1x IPC. 1 core at 4x IPC is always better than 4 cores at 1x IPC, etc...
Click to expand...

Yeah I understand that, but I mean more so in just terms of how much more you generally do on a laptop/pc these days and how programs are becoming beefier and require more power.
 
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