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AMD Zen 5 rumours

srekal34 said:
I dont know what universe you are from, but on earth zen is barely faster than intel on 125w:

relative-performance-cpu.png

average-fps-1280-720.png

And I would say TPU tests favour AMD a little, its easy to find less favourable results for AMD
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Oh look, 16 last generation cores beating 24 current gen. What will 24 next gen Zen cores running 48 threads look like…

Living in the current universe, living outside isn’t a luxury I can afford unfortunately.
 
Twinz said:
There are still certain scenarios where Intel's approach works better than AMD. I use Topaz video AI and Intel CPU's cut rendering time a lot compared to AMD.

I have not personally encountered enough applications to make the switch myself, but they are out there. My primary use case is sim driving and the X3D stuff does very well for that. But if I used Topaz Video AI more, I would want Intel.
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Why would you want Intel for Topaz Video AI? i use it with AMD. its great and it doesn't cook my CPU's cooler....
 
humbug said:
Why would you want Intel for Topaz Video AI? i use it with AMD. its great and it doesn't cook my CPU's cooler....
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Intel is faster. I run a 5950X and a 3080Ti and it's not bad, but there is a benchmark built into the software and a thread where people can post results.

Intel is just faster for that application.
 
humbug said:
The thing is people are so used to Intel being on top and assuming they are just the best...... when something starts to go a bit iki people think they are just imagining it or there is a problem with the system..... they don't think its the CPU architecture.

JayZ2Cents a while ago has been messing about with AMD 7000 series CPU's, in sevral of these videos he's commented things like "wow this so smooth and snappy" he didn't click for quite a while that he's just been used to 12'th and 13'th gen CPU's.
But one day it did click with him, it is the CPU, he decided to rebuild his home rig with a Ryzen 7000 CPU and explains, briefly why here.....

youtu.be

Do I regret using the 7950X3D CPU in my rig? Let's talk about it!

Now that I have resolved the issues I had with my AMD 7950X3D rig... do I regret using this CPU? Let's talk about it!Learn more about the Phanteks T30 fan he...
youtu.be youtu.be
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cache cant be beat simply when utilized the 70ns difference between intel and amd is just to big and makes a difference using the machine.
Intel guys cant fathom the difference until they suddenly realized how much better the gaming experience is with amd cache x3d technology.
for me with path of exile it was a tremendous difference
humbug said:
One thing i just noticed about JayZ2Cents is that he rambles all over the place, for example he got the the opinion on the gaming of the CPU, i'm about 4 minutes after him saying that he wanted to talk about gaming on it and before getting to that point he's digressed to ram configuration, ram speed, then cooler type, then temps, then world of warships on his 10900K.......... and he's just not getting to the point, he ranbles and digresses so much he forgets about the point he wanted to make.

Its quite frustrating to watch when all you want is plain useful facts and he's just filling a long rambling video with useless noise.
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Its common that people go off tangent and change the subject (context)

Like this supposedly be about zen5.
I await zen5 to upgrade as the 7800x3d I got wont need it really but I enjoy things to be snappy.
while amd stated 10-15% ipc lift which is pretty big as intel continues with the 0-5% one can hope amd find some extra or are just downplaying things again...
a 10% ipc lift is a good reason to upgrade.
More than that is a bonus
x3d technology is another great bonus
 
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RBImGuy said:
cache cant be beat simply when utilized the 70ns difference between intel and amd is just to big and makes a difference using the machine.
Intel guys cant fathom the difference until they suddenly realized how much better the gaming experience is with amd cache x3d technology.
for me with path of exile it was a tremendous difference

Its common that people go off tangent and change the subject (context)

Like this supposedly be about zen5.
I await zen5 to upgrade as the 7800x3d I got wont need it really but I enjoy things to be snappy.
while amd stated 10-15% ipc lift which is pretty big as intel continues with the 0-5% one can hope amd find some extra or are just downplaying things again...
a 10% ipc lift is a good reason to upgrade.
More than that is a bonus
x3d technology is another great bonus
Click to expand...

This.... people just don't realise just how important core to core latency is, you can see it in Intel's own CPU's of the same generation, Xeon's have a "Mesh" architecture and Core have a Ring Bus, with that there is a significant difference in gaming performance.
Like wise Zen 3 is actually the same core as Zen 2, there is a small IPC gain and about 10% higher clocks, so 15% total, the gaming performance difference between Zen 2 and Zen 3 is up to 45%.
More over the gaming performance Zen 2 vs Intel Coffeelake (clock for clock) is very similar, so similar you can barely tell them apart, Intel win at their respective clocks because they are clocked higher.
Again Zen 3 (Ryzen 5000) is up to 25% faster than Coffeelake when you remove the GPU bottleneck completely, See Anandtech....

And here is the reason for all of that....

To add to that adding a large amount of cache reduces core to core communication, because more data can be cached, especially when that cache is very close to the core, for example right on top of it (3D Stacking)

fAT33eY.png
 
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humbug said:
This.... people just don't realise just how important core to core latency is, you can see it in Intel's own CPU's of the same generation, Xeon's have a "Mesh" architecture and Core have a Ring Bus, with that there is a significant difference in gaming performance.


And here is the reason for all of that....

To add to that adding a large amount of cache reduces core to core communication, because more data can be cached, especially when that cache is very close to the core, for example right on top of it (3D Stacking)
Click to expand...
playing with a 7600x and then upgraded to 7800x3d and the difference was highly noticeable gaming.
Look forward zen5 as its likely to be one of those great cpus this generation
 
I would consider every past zen iteration a significant improvement
rumored 5-10% IPC increase and 5-10% clock increase will amount to significant

as always, probably not enough to switch from previous gen Zen4, but no brainer to make a jump from any older generation
 
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Hmmm think you're right, but the text in article seems wrong.
"The leaked diagram shows the standard CPU sporting 16 CCDs with 16 cores each, while the "dense" Zen 5c version has 12. "

The picture shows 16 lots of 8core chiplets in Zen5, and 12 lots of 16 core chiplets in Zen5c.
 
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Nutty667 said:
From the pictures on Twitter, it looks like CCX's now have 16 cores. If that transfers over to desktop chips, it'll be a significant change.
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It does not. Desktop is 8 core only, 16 core CCX only for Epyc. Like I said zen5 not a significant improvement. When I say this I mean desktop zen5 won't be much improvement. Epyc Zen5 is a different story, AMD is giving its server CPUs newer tech before desktop gets it. Zen5 for desktop doesn't have the new ccx, and doesnt have more cores than zen4, main difference compared to zen4 is architecture IPC and maybe clock speed
 
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We're already mid-cycle with AM5 and the difference between say a 5800x3d and 7800x3d isn't that great given the latter requires a newer mobo chipset and faster DDR5 ram. At this stage isn't it probably more worthwhile to wait for AM6 in 2026? It's only 2 years and DDR6 & PCIE6 releases then.
 
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