Official AMD Radeon RX 7000 Series (RDNA 3) Thread

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SuperGeil

New member

My thoughts:
  1. 3 6nm or 5nm compute dies
  2. 1 7nm I/O die
  3. 384mb/256mb/128 Infinity Cache pools
  4. 384bit or 256 bit memory bus
  5. Chiplets and memory will be using AMD's infinity fabric technology
  6. I/O die could also have the video processing hardware, ROP's and Ray accelerators
  7. Compute dies will be mostly shaders


This chiplet setup is primed and ready for a FPGA take over in due time from an outsiders perspective looking in. Not just for RDNA but Zen as well. The Xilinks purchase is looking pretty genius.

Theoretically you could see the 7800, 7700 and 7600 all come out at the same time since they will be using the same compute chip. Smaller less complex chips that are can be scaled by mere count rather than complexity or turning off sections of the chip will have dramatic impacts on yields, time to market, power, and price.
 
this will be AMD going back to HBM as well. calling it now. Prices for HBM have dropped SIGNIFICANTLY in the last 2 years.
 
One thing NAAF didnt mention is that one of the more consistent rumors about navi3 is that the geometry engine is overhauled and much stronger than navi2. They want to do away with what has been apparently been a bit of a weak spot on amd gpus.

So not just an obviously bigger IF cache and more shaders and RT units but some significant architectural changes. I hope they match nvidia nvenc.
 
I hope they don't gimp the memory bandwidth so I can actually consider buying one. Come on baby, give us the goods.

If this progresses as rapidly as Ryzen did, then either RDNA3 or 4 will be the GPUs to buy. The only thing different, is that I don't see NV laying over and being lazy. The rumor of them moving back to TSMC means I expect a massive leap over Ampere..
 
SuperGeil said:
This chiplet setup is primed and ready for a FPGA take over in due time from an outsiders perspective looking in. Not just for RDNA but Zen as well. The Xilinks purchase is looking pretty genius.
Click to expand...

What does this mean?

Typically you can't replace perf/w and outright performance sensitive ASICs with FPGAs.

There are no FPGAs running 5GHz CPU cores, or 3GHZ GPU cores.

This is why I don't comprehend the 'FPGA take over' comment.

What does FPGA take over mean, and why does a chiplet strategy prime it?

IMO the Xilinx acquisition is only for more datacenter and networking market share opportunities.
 
caveman-jim said:
What does this mean?

Typically you can't replace perf/w and outright performance sensitive ASICs with FPGAs.

There are no FPGAs running 5GHz CPU cores, or 3GHZ GPU cores.

This is why I don't comprehend the 'FPGA take over' comment.

What does FPGA take over mean, and why does a chiplet strategy prime it?

IMO the Xilinx acquisition is only for more datacenter and networking market share opportunities.
Click to expand...


Yea the Xilinx thing was for IP Id read and the upcoming 3d chip stacking which xilinx has some knowhow for.
 
caveman-jim said:
What does this mean?

Typically you can't replace perf/w and outright performance sensitive ASICs with FPGAs.

There are no FPGAs running 5GHz CPU cores, or 3GHZ GPU cores.

This is why I don't comprehend the 'FPGA take over' comment.

What does FPGA take over mean, and why does a chiplet strategy prime it?

IMO the Xilinx acquisition is only for more datacenter and networking market share opportunities.
Click to expand...

This is what financial analyst's think of the deal.

- AMD is paying 74 times XLNX earnings, based on by far XLNX's highest earnings in the last five years.
- AMD are paying a 25% premium on the Xilinx current stock value.
- The FPGA market is not a big growth area anyway. Their CAGR is 5.9% over the last five years.
- XLNX's revenue looks lackluster.
- Neither company generates enough free cash flow to take on competitors Intel or Nvidia long term.
- AMD's rocket ship stock price has a CAGR of 95% over the last five years.

When Lisa Su announced it all she talked about was opportunities in datacentre, NICS and 5G. Nothing whatsoever to do with CPU's and GPU's. She did mention $300m synergies in the first year through cost duplication (getting rid of staff) which is nothing new.

Happy New Year Caveman nice to see you posting again.
 
pax said:
Yea the Xilinx thing was for IP Id read and the upcoming 3d chip stacking which xilinx has some knowhow for.
Click to expand...

LordHawkwind said:
This is what financial analyst's think of the deal.

- AMD is paying 74 times XLNX earnings, based on by far XLNX's highest earnings in the last five years.
- AMD are paying a 25% premium on the Xilinx current stock value.
- The FPGA market is not a big growth area anyway. Their CAGR is 5.9% over the last five years.
- XLNX's revenue looks lackluster.
- Neither company generates enough free cash flow to take on competitors Intel or Nvidia long term.
- AMD's rocket ship stock price has a CAGR of 95% over the last five years.

When Lisa Su announced it all she talked about was opportunities in datacentre, NICS and 5G. Nothing whatsoever to do with CPU's and GPU's. She did mention $300m synergies in the first year through cost duplication (getting rid of staff) which is nothing new.

Happy New Year Caveman nice to see you posting again.
Click to expand...

I think Xilinx portfolio is strong by itself for the datacenter and enterprise networking (5G/RAN, Datacenter networking, DPU, etc.). They have strong market share and good IP. Xilinx products have a lot of synergies for market attach with AMD datacenter and enterprise platforms, plus future products bringing the IP roadmaps together.

FPGAs are in strong demand right now for lots of different applications using AI, as the models change 2x -3x faster than ASICs can be designed and produced. As the model evolution calms down domain-specific hardware (or workload-focused, at least) will be more prevalent, and will need to be more integrated than chips in sockets either side of a PCIe or similar bus; integration will have to happen both in-package, and in-SoC.

NIGELG said:
:yep: :yep:

Nice to know he still reads the forum and can still slam the hammer down on nonsense when it appears.
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acroig said:
:lol: , I miss him slamming the hammer.
Click to expand...

Well I wasn't trying to club anyone, just asking cos I didn't get the connection between chiplets and FPGAs :embarrassed:
 
LordHawkwind said:
This is what financial analyst's think of the deal.

- AMD is paying 74 times XLNX earnings, based on by far XLNX's highest earnings in the last five years.
- AMD are paying a 25% premium on the Xilinx current stock value.
- The FPGA market is not a big growth area anyway. Their CAGR is 5.9% over the last five years.
- XLNX's revenue looks lackluster.
- Neither company generates enough free cash flow to take on competitors Intel or Nvidia long term.
- AMD's rocket ship stock price has a CAGR of 95% over the last five years.

When Lisa Su announced it all she talked about was opportunities in datacentre, NICS and 5G. Nothing whatsoever to do with CPU's and GPU's. She did mention $300m synergies in the first year through cost duplication (getting rid of staff) which is nothing new.

Happy New Year Caveman nice to see you posting again.
Click to expand...

My favorite person with the world's most amount of anxiety for video cards just one month ago was saying he never heard of Xilinks, now he is a market expert on the deal. :sherlock:

AMD did not buy Xilinks 35 billion for the short term in Data Center or 5G networking. FGPA on it's own will never pay off the deal if that was their goal. Nor did they buy them for 3D stacking chips. There is a reason why the two x86 giants bought the biggest FPGA companies.

Moores Law is dying and x86 needs a friend. The idea of offloading to an FPGA is not new, and there are tons of papers on this. FPGA's do a lot of things better than the GPU and CPU from a performance standpoint as well as a power standpoint. This is not to say they are going to replace them, but this about reinforcing them. Actually... I could probably see CDNA being an mostly an FPGA in 5 years or less. You are going to see FPGA logic integrated one way or another. Whether it's on fabric or in the logic itself.


caveman-jim said:
Well I wasn't trying to club anyone, just asking cos I didn't get the connection between chiplets and FPGAs :embarrassed:
Click to expand...

I did not take offense, not sure what they are talking about. Chiplets would make it easier to transition task and engines to a custom FPGA without committing your entire architecture to it. At least in my mind. An FPGA for instance can do the ray tracing, handle complex AI, the I/O, as well as the video encoding and decoding and do it more efficiently. If RDNA 3 is chiplet with a decoupled controller die, then things would be set and primed for integration in future RDNA architecture.

reply in the Xlinks thread if you would like. : )
I'll share a cool link.
 
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PD56Nae.png
 
https://wccftech.com/amd-files-mcm-...lly-bringing-the-mcm-approach-to-radeon-gpus/

AMD has filed a patent for something that everyone knew would eventually happen: an MCM GPU Chiplet design. Spotted by LaFriteDavid over at Twitter and published on Freepatents.com, the document shows how AMD plans to build a GPU chiplet graphics card that is eerily reminiscent of its MCM based CPU designs. With NVIDIA working on its own MCM design with Hopper architecture, it's about time that we left monolithic GPU designs in the past and enable truly exponential performance growth.

The patent points out that one of the reasons why MCM GPUs have not been attempted in the past is due to the high latency between chiplets, programming models and it being harder to implement parallelism. AMD's patent attempts to solve all these problems by using an on-package interconnect it calls the high bandwidth passive crosslink. This would enable each GPU chiplet to communicate with the CPU directly as well as other chiplets via the passive crosslink. Each GPU would also feature its own cache. This design appears to suggest that each GPU chiplet will be a GPU in its own right and fully addressable by the operating system.
Click to expand...

Not sure if this will be navi3 or more likely later but its interesting nonetheless.
 
bill dennison said:
more than likely and in 10 to 12 months

I'm getting more and more reasons to wait till next time every day
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:lol: Stop it Billy, looks like this isnt happening for years, looks like next new chip for both NV and AMD are still old design.

“MCM design for its GPUs after RDNA3”
 
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Nascar24 said:
:lol: Stop it Billy, looks like this isnt happening for years, looks like next new chip for both NV and AMD are still old design.

“MCM design for its GPUs after RDNA3”
Click to expand...

keep laughing fuzzball

AMD patent points to new MCM GPU design for RDNA3
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https://www.techradar.com/news/amd-patent-points-to-new-mcm-gpu-chiplet-technology

if RDNA 3 is MCM or not RDNA 3 will be out this year and RDNA 4 will be MCM and out next year

the sand is running out of that high wattage hourglass you got fast
 
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Nascar24 said:
After the jacket changed things up I believe he knows more then us and AMD is years out as well with MCM.

Dont know what to tell ya Billy, I'm happy with my 3080!
Click to expand...

AMD is not really MCM it's more like Ryzen

AMD patents a chiplet GPU design quite unlike Nvidia and Intel's
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In the new patent dated December 31, AMD outlines a chiplet design fashioned to mimic a monolithic design as closely as possible. Their hypothetical model uses two chiplets connected by a high-speed inactive interposer called a crosslink.

A crosslink connection sits between the L2 cache and L3 cache on the memory hierarchy. Everything beneath it, such as the cores and L1 cache and L2 cache, are aware of their separation from the other chiplet. Everything above, including the L3 cache and GDDR memory, are shared between the chiplets.

This design is beneficial because it is conventional. AMD claims that compute units can access low-level cache on other chiplets almost as fast as they can access local low-level cache. Should that prove true, software won't need updating.
Click to expand...


https://www.techspot.com/news/88138-amd-patents-chiplet-gpu-design-unlike-nvidia-intel.html

the jacket is at a disadvantage at this point as he can't violate all those Ryzen chiplet & crosslink patents AMD has
 
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