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Question Zen 6 Speculation Thread

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RTX said:
MLID says 7ghz
TDevilfish says 7ghz
Kepler_L2 says 7ghz
adroc_thurston says 7.2ghz

Is 7ghz even possible for Zen 6?
Click to expand...
I think Kepler_L said it's some sort of goal but not that it has to be or is very likely to be reached (which of course, is about the maximum you can probably safely say now).
 
AMD Zen 6 info and speculations that I found so far. I'm not an expert and probably missed a few.
  • Zen 6 developed from scratch/ground-up on a TSMC N2(2nm) process.
  • Zen 6 has architecture changes and improvement as per generation as usual, but changes more focused on server marker & professional market then consumer.
  • Per Zen 6 CCD their are 12 cores and up to 24 core per CPU for consumers & desktop client (256 cores for server market/professionals)
  • Clock speed for consumer CPU's is rumors at 6.5GHz to 7GHz, let low ball it and say 6.5GHz. No overhyping it.
  • Interconnect between CCD(s), IO and GPU dies on CPU's and APU's going from Infinity Fabric (SERDES PHYs) to D2D (Sea-of-Wires) to improve latency, speed and power reduction.
  • Zen 6 Memory stays on DDR5 (no DDR6 for consumers) but with higher MT's. Estimation DDR5-8000+ over current DDR5-5600 so should be enough bandwidth.
  • External connection from CPU stays PCIe 5 (no PCIe 6) enough bandwidth for current consumer.

    Most improvement are focused to server market and improvement are in no particular order are:

  • wider 8-slot instruction distribution unit
  • AMD is massively focus on bandwidth, parallelism and mathematical calculations
  • Focus on FP and SMT loads betting on Extensive command executions performance
  • Simultaneous Synchronous multi threading with expanded diagnostic capabilities, with improved Memory Profiler IBS (aka Instruction-Based Sampling).
  • Zen 6 seems to divide integer scheduling resources into multiple independent up to six separate schedulers for six ALUs.
  • Improved Vector and Floating point calculations, focus on AVX (512bit vector improvement)
 
Dragonetti031 said:
Zen 6 developed from scratch/ground-up on a TSMC N2(2nm) process.
Click to expand...
It's a derived core.
Dragonetti031 said:
Zen 6 has architecture changes and improvement as per generation as usual, but changes more focused on server marker & professional market then consumer.
Click to expand...
That's every Zen ever, forever.
Dragonetti031 said:
Interconnect between CCD(s), IO and GPU dies on CPU's and APU's going from Infinity Fabric (SERDES PHYs) to D2D (Sea-of-Wires) to improve latency, speed and power reduction.
Click to expand...
They're all IF.
Dragonetti031 said:
wider 8-slot instruction distribution unit
Click to expand...
Their renamer is already 8wide.

Please stop spamming chatGPT garbage here.
 
adroc_thurston said:
Please stop spamming chatGPT garbage here.
Click to expand...

@adroc_thurston First off all I'm not spamming chatGPT garbage here , but information found in various articles from:

tomshardware.com - AMD EPYC Venice boasts 256 cores and bandwidth galore — next-gen server CPUs arrive in 2026
guru3d.com - AMD Zen 6 Architecture Surfaces With 8-Wide Dispatch and 512-Bit Vector Support.
wccftech.com - AMD to Pivot from SERDES to a “Sea-of-Wires” D2D Interconnect in Next-Gen Zen 6 CPUs, Bringing Major Power-Efficiency and Latency Gains
overclock3d.net - AMD Zen 6 to get “sea of wires” interconnect upgrade?
techpowerup.com - AMD D2D Interconnect in "Zen 6" Gets Sea-of-Wires Upgrade.
hothardware.com - AMD Reveals New Zen 6 Details In First Official Document.
hothardware.com - AMD Zen 6 CPUs Look Poised For A Major Interconnect Upgrade
amd.com - Performance Monitor Counters for AMD Family 1Ah Model 50h-57h Processors (69163) via @InstLatX64 on twitter #AMD released the first official #Zen6 doc: "Performance Monitor Counters for AMD Family 1Ah Model 50h-57h Processors" 69163 v1.00 which meany websites refer also to.
amd.com - Simultaneous Multithreading: Driving Performance and Efficiency on AMD EPYC CPUs

Don't ask me for links as i get a message from "Anandtech SPAMFILTER!!"

Anandtech error while posting normal content.png
 
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Dragonetti031 said:
@adroc_thurston First off all I'm not spamming chatGPT garbage here , but information found in various articles from:

tomshardware.com - AMD EPYC Venice boasts 256 cores and bandwidth galore — next-gen server CPUs arrive in 2026
guru3d.com - AMD Zen 6 Architecture Surfaces With 8-Wide Dispatch and 512-Bit Vector Support.
wccftech.com - AMD to Pivot from SERDES to a “Sea-of-Wires” D2D Interconnect in Next-Gen Zen 6 CPUs, Bringing Major Power-Efficiency and Latency Gains
overclock3d.net - AMD Zen 6 to get “sea of wires” interconnect upgrade?
techpowerup.com - AMD D2D Interconnect in "Zen 6" Gets Sea-of-Wires Upgrade.
hothardware.com - AMD Reveals New Zen 6 Details In First Official Document.
hothardware.com - AMD Zen 6 CPUs Look Poised For A Major Interconnect Upgrade
amd.com - Performance Monitor Counters for AMD Family 1Ah Model 50h-57h Processors (69163) via @InstLatX64 on twitter #AMD released the first official #Zen6 doc: "Performance Monitor Counters for AMD Family 1Ah Model 50h-57h Processors" 69163 v1.00 which meany websites refer also to.
amd.com - Simultaneous Multithreading: Driving Performance and Efficiency on AMD EPYC CPUs

Don't ask me for links as i get a message from "Anandtech SPAMFILTER!!"

View attachment 140258
Click to expand...
Ah ok, it's just LLMs love that formatting style.
 
RTX said:
Zen 3 5950X clocked at 5050?
Click to expand...
AMD usually has a different rated (printed in specs) boost clock and actual maximum boost clock the CPU can use (for single thread tasks/on preferred cores of course). In chips like 5950X, 7950X and 9950X, there's 150 MHz "extra clock" the chip may achieve. But it tends to depend on load, temperature and other factors, which is probably why they officially give a lower rating.

When I used a 5950X, I was getting above 5000 MHz at least according to the maximum clocks logged in HWiNFO.

Getting the extra 150 MHz has (IIRC) gotten harder (need to get the temperature almost impossibly low, like 50C, or something?) on Zen 4 and Zen 5, but technically they can also go to 5.85 GHz in stock configuration. It's always a question how to factor the viability of that extra clock range into 1T comparisons and IPC guessing, exactly.
 
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Jan Olšan said:
AMD usually has a different rated (printed in specs) boost clock and actual maximum boost clock the CPU can use (for single thread tasks/on preferred cores of course). In chips like 5950X, 7950X and 9950X, there's 150 MHz "extra clock" the chip may achieve. But it tends to depend on load, temperature and other factors, which is probably why they officially give a lower rating.

When I used a 5950X, I was getting above 5000 MHz at least according to the maximum clocks logged in HWiNFO.

Getting the extra 150 MHz has (IIRC) gotten harder (need to get the temperature almost impossibly low, like 50C, or something?) on Zen 4 and Zen 5, but technically they can also go to 5.85 GHz in stock configuration. It's always a question how to factor the viability of that extra clock range into 1T comparisons and IPC guessing, exactly.
Click to expand...

Yep, my 5950X has no issues hitting 5050mhz consistently. My 7950X never gets above 5.75ghz
 
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