r/hardware • u/HLumin • 1d ago
News AMD Ryzen 9 5900X3D engineering sample surfaces with 128MB L3 cache.
https://videocardz.com/newz/amd-ryzen-9-5900x3d-engineering-sample-surfaces-with-128mb-l3-cache35
u/pixlicker69420 1d ago
This is already well known, and amd never went forward with it because it provided no benefit
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u/forgottenendeavours 19h ago
Tbf, they still say that about full X3D, even though with the 9950X3D2, it's demonstrably AMD's fastest mainstream CPU for media creation.
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u/terraphantm 8h ago
Yeah the areas where it excels are somewhat niche, but the extra performance is there.
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u/goldcakes 2h ago
Yeah and still considerably beaten by the intel core 270K+ thanks to the latter having a lot more cores; in which pro tools slurp as much as possible.
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u/OGawdILoveTacos 1d ago
Yea, wasn't the issue still that it only had 6 cores on each CCD with only only one CCD having the X3D memory attached to it? That was the real bottleneck, the lack of cores compared to the 5800x3d. We were reminded of this limitation when the 7900x3d dropped and the 78003xd and 7950x3d blew it away in gaming.
I mean even the 9900x3d poops out compared to the 9800x3d.
Now the 109003xd with the rumors of having 10 cores on each ccd, that will be something to see. Time will tell though.
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u/matthewjd1985 12h ago
Makes sense it stayed a sample. The 5800X3D already covered everyone gaming on AM4, and a second chiplet without the cache mostly gives Windows something new to get wrong.
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u/Ambientinc 1d ago
Doubt this would see the light of day, but with how the tech world is right now, you never know.
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u/TorazChryx 1d ago
If AMD were _really_ pushed by the ram crunch, I don't think there's a technical reason stopping them from pairing up Zen4/5 chiplets with the AM4 I/O die from 5000 series, the chiplets themselves just talk infinity fabric. If nothing else a 6 core Zen5 X3D part paired with DDR4 would be interesting. and I'm all for interesting.
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u/__Rosso__ 1d ago
It would take a lot of work and performance would suffer but it might be worth it.
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u/DerpSenpai 1d ago
Guys should we make faster cores that are competitive with Apple in IPC/performance? No! just add more Cache!
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u/poorlycooked 23h ago
Adding more cache increased the effective IPC much more drastically than any frequency or architecture improvement that could be reasonably done to these x86 cores.
The real bottleneck is memory access, so larger and faster cache is the way to go. Unless you want x86 CPUs and motherboards to go to Mac price levels with quad or octo channel memory
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u/porcinechoirmaster 19h ago
"Just compete with Apple!"
Sigh. Okay.
Look, Apple has a bunch of advantages that everyone else... doesn't, really, and it's pretty difficult to keep up with them:
- They use a cutting edge node. Apple is right at the bleeding edge, and they're willing to pay a premium for it. This gets them some significant wins in power efficiency out of the gate.
- They have top-to-bottom control of the software ecosystem. Apple doesn't have to worry about things like old binaries or people making optimizations for old architectures that are no longer performant, because it can tell developers to recompile for their new platform or their software won't work.
- Their compiler teams works closely with their hardware team to ensure the compiler is very good at extracting every bit of performance out of their hardware, and their hardware team knows where the bottlenecks are and builds around them.
Would AMD/Intel benefit from rebuilding their entire architecture to feature lower clock rates for improved power efficiency, much wider decoders, larger L1 caches and buffers, increased register counts, building a new compiler to take advantage of those changes, and then requiring everyone to recompile their code? Absolutely, yes, but they can't do all of those things.
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u/LandlordTiberius 1d ago
That website gave me eye cancer.
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u/exomachina 1d ago
It's had pretty much the same design and layout for well over a decade. It's not terrible.
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u/imaginary_num6er 1d ago
No. There was that 1 day in September where the owner decided to change the layout and it quickly went back to how it is right now.
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u/randylush 1d ago
Are you guys on mobile? It’s actually really well formatted on mobile, no wasted space and not a lot of advertising
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u/[deleted] 1d ago
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