Thursday, September 15th 2022
AMD RDNA3 Radeon RX 7000 Flagship GPU PCB Sketched
Here's the very first sketch of an AMD RDNA3 Radeon RX 7000-series flagship graphics card with the "Navi 31" chip in the middle. This will be AMD's first chiplet-based GPU built on a philosophy similar to that of the Ryzen desktop and EPYC server processors. The main number crunching machinery that benefits the most from the latest foundry process, will be built on 5 nm logic chiplets (up to two of these on the "Navi 31," one of these on the "Navi 32"), while the components that don't really benefit from the latest process, such as the memory controllers, display/media accelerators, etc., will be disintegrated into chiplets built on a slightly older node, such as 6 nm. This way AMD gets to maximize its 5 nm allocation at TSMC, which it has to share among not just the logic tiles of RDNA3 GPUs, but also its "Zen 4" processors.
The top-dog "Navi 31" silicon is expected to feature a 384-bit wide GDDR6 memory interface, which is why you see 12 memory chips surrounding the GPU package. AMD is expected to deploy fast 19-21 Gbps class GDDR6 memory chips, as well as double-down on the Infinity Cache technology. The package looks like a GPU die surrounded by HBM stacks, but those are actually the memory/display chiplets. If this PCB is from an AMD reference design, it could be the biggest hint that AMD isn't switching over to the 12+4 pin ATX 12HPWR connector just yet, and could stick with three 8-pin PCIe connectors for power, just like the current RX 6950 XT. USB-C with DisplayPort passthrough could prominently feature with RDNA3 graphics cards, besides standard DisplayPort and HDMI connectors.
Source:
Igor's Lab
The top-dog "Navi 31" silicon is expected to feature a 384-bit wide GDDR6 memory interface, which is why you see 12 memory chips surrounding the GPU package. AMD is expected to deploy fast 19-21 Gbps class GDDR6 memory chips, as well as double-down on the Infinity Cache technology. The package looks like a GPU die surrounded by HBM stacks, but those are actually the memory/display chiplets. If this PCB is from an AMD reference design, it could be the biggest hint that AMD isn't switching over to the 12+4 pin ATX 12HPWR connector just yet, and could stick with three 8-pin PCIe connectors for power, just like the current RX 6950 XT. USB-C with DisplayPort passthrough could prominently feature with RDNA3 graphics cards, besides standard DisplayPort and HDMI connectors.
29 Comments on AMD RDNA3 Radeon RX 7000 Flagship GPU PCB Sketched
Which means it might or might not have warehouses stocked and ready to ship.
I have concluded that this sketch is indeed of a graphics card in the modern age.
I'm really starting looking how much power equipment is using. Efficiency is going to be a key selling point for me.
Well on the other hand we can't rely on gas anymore that much, so an electric room heater doesn't sound that bad.
There was a fun revelation while talking with collogues. It is the first time where Titanium class PSU price margin would pay off versus a gold one.
Anyone able to deduce dimensions?
This is a stretch of a leak
So it's definitely GPU shaped, noice.
This has to be one of the worst "leaks" I've ever seen get an article lolol
AMD shipped RDNA2 a bit later and if it's on track, we should start seeing more info like printed box by the end of October. In both case, no matter if you are a fanboy of one or the other, you should wait if you can until both cards are settle in the market.
This is going to be very interesting indeed. i can't wait to see both cards compete.