Monday, August 29th 2022
AMD Teases Next-Gen RDNA3 Graphics Card: Claims to Repeat 50% Perf/Watt Gain
AMD in its Ryzen 7000 launch event teased its next-generation Radeon graphics card based on the RDNA3 graphics architecture. Built on an advanced process node just like "Zen 4," AMD is hoping to repeat the magic of the RX 6000 series, by achieving a 50% performance-per-Watt gain over the previous generation. which allows it either to build some really efficient GPUs, or consume the power headroom to offer significantly higher performance at power levels similar as the current-gen.
AMD's teaser included a brief look at the air-cooled RDNA3 flagship reference-design, and it looks stunning. The company showed off a live demo of the card playing "Lies of P," a AAA gaming title that made waves at Gamescom for its visuals. The game was shown playing on an RDNA3 graphics card running on a machine with a Ryzen 9 7950X processor at 4K, with extreme settings. AMD CEO Dr Lisa Su confirmed a 2022 launch for RDNA3.
AMD's teaser included a brief look at the air-cooled RDNA3 flagship reference-design, and it looks stunning. The company showed off a live demo of the card playing "Lies of P," a AAA gaming title that made waves at Gamescom for its visuals. The game was shown playing on an RDNA3 graphics card running on a machine with a Ryzen 9 7950X processor at 4K, with extreme settings. AMD CEO Dr Lisa Su confirmed a 2022 launch for RDNA3.
27 Comments on AMD Teases Next-Gen RDNA3 Graphics Card: Claims to Repeat 50% Perf/Watt Gain
much like Nvidia RTX 3070 that is in fact a glorified RTX 2080 with the caveat that 3072 CUDA can now do both INT32 +FP32 or FP32 +FP32 and this translates into +25% performance.
so what is a 12288 NAVI31 supposed to be. realistically, a glorified 6144 shaders, it's +20% shaders over RX 6900 +25% efficiency resulting 50% performance. at same power. and a 384 bit bus to feed the 50% increase over the 256 bit bus with enough bandwidth.
GCD Size ~308 mm²
MCD 6x ~37.5 mm²
Full GPU ~533 mm²
50% perf/watt compared to what, is it 6900 TDP 300 watt 300 measured @ 89% performance
Custom AIB 6950 is worsening that number. +10% performance for +33% power.
And start to manufacture 80+ GOLD 150-200W power supply.
Thank you! Tons of 500W power supplies are fckN way too powerfull to get good power efficiency at light load.
But in this case at 1440p 6900XT will be nearly 10% faster and nearly 30% faster in 4K. (Even RX 6800 will be faster in 4K in this case)
No data to support this, just a feeling!
Of course, my dream scenario is a GPU die designed to be a GPD - a GPU die for use on desktop MCM APUs, that also gets implemented as a low end dGPU. Maybe 20 CUs? 16 at least? That would be pretty much the best of both worlds. And on 5nm with RDNA3, especially with its MCM architecture with memory controllers and I/O separated from the GPU die (sadly only for the high end, at least for now), that GPU die is starting to look dangerously close to what such a GCD would look like - just a bunch of CUs + a few IF links. I don't think we'll see something like this this generation though - unless that Zen4 iGPU has some tricks up its sleeve that we don't know about, like the ability to control a GCD. I doubt it does though.
I also wonder - will a 4-core / 8-thread CPU or APU be good enough to run Fortnite smooth?
Ultimately, I doubt average consumer cares, to be honest, but, perhaps, GPU companies know better.
For example if in 1080p raster RTX 3080 12GB is let's say 5% slower than Navi33, when you enable raytracing RTX will be at least 5% faster!
Again no data, just a feeling.