AMD’s next generation of GPUs – called AMD RDNA 3 – is coming soon and we’re starting to get excited. Team Red played their cards to the chest for this one, no doubt as a result of Nvidia’s powerful GPU, the RTX 4090.
It’s been nearly two years since AMD introduced RDNA 2, or Big Navi, the GPU architecture that powers the Radeon RX 6000 series of graphics cards. Such a long wait is unprecedented given AMD’s historic cadence of releases, but now it’s almost here: the new RX 7000 GPUs will be revealed in a live stream on November 3rd.
RDNA is the architecture and instruction set for AMD graphics processors. It includes everything from the design of the compute and cache units to the shaders and visual pipeline. AMD RDNA 3 will continue to build on the strong showings the company has made with its recent graphics cards.
Many of the details surrounding the new Radeon GPUs have been kept under wraps, but recent leaks mean we have an idea of what to expect from AMD’s next-gen graphics cards. Read on to find out…
AMD RDNA 3: straight to the point
- What is it? AMD’s next-generation GPU architectures, following the Radeon RX 6000 series.
- When do you leave? November 2022
- What will it cost? Anywhere from $400 to $2,000+
AMD RDNA 3 release date
It looks like we’ll see some – but not all – of the new RDNA 3 GPUs during AMD’s reveal stream at November 3rdwith an apparent immediate release of the new cards on the same day.
Exactly which cards will launch that day is yet to be confirmed, though an EEC trademark filing by AMD lists multiple GPUs by name, as identified by the Twitter user. @harukaze5719.
The file lists ten GPUs ranging from the RX 7900 XT to the budget RX 7500, with XT and non-XT versions of each card. However, we learned from a separate, more recent leak that the mainboard could in fact be a supercharged Radeon RX 7900 XTX, so don’t expect to see every card listed in the EEC document.
[EEC]- NVIDIA RTX 40 series and RTX 30 Super series – AMD RX 7000 series pic.twitter.com/Rwy2o4FCCdJuly 26, 2022
Our current expectations are that we’ll see three GPUs in the initial lineup, matching Nvidia’s announcement of three cards earlier this year (even if Team Green has to hastily ‘unrelease’ one of those cards).
We suspect this will be the RX 7900 XTX, a slightly less powerful RX 7900 XT and then a slightly more affordable card – perhaps the 7800 XT or 7700 XT. Both AMD and Nvidia have become slow to roll out their low-end GPUs with each new generation, so don’t expect a budget Radeon RX 7500 to arrive anytime soon.
AMD RDNA 3 pricing
We have little basis for guessing AMD’s RDNA 3 graphics card prices. Logically, the new GPUs – Navi 31, 32 and 33 – will be the successors of the Navi 21 found in the price of US$ 999. Radeon RX 6900XT and $649 RX 6800 XT, Navi 22 found at $479 RX 6700 XT and Navi 23 found at $379 RX 6600XTrespectively.
Given the supply chain and logistics issues over the last couple of years that are still causing problems, as well as Possible TSMC price increases for chip manufacturingwe’re sure we’ll see Radeon RX 7000 Series graphics cards that are more expensive than their predecessors – we estimate a price increase of around 10-20% over the previous generation.
With that in mind, RedGamingTech suggested that the high-end model can be configured to be a real beast and could cost upwards of $2,000 – however, we think this is overkill. The rumored RX 7900 XTX has no next-gen equivalent, so it will likely have a MSRP close to Nvidia’s competing flagship, in the $1,599 range.
AMD RDNA 3 specs and performance
There’s little more than whispers and rumors when it comes to the specs of RDNA 3-based graphics cards, but those we’ve heard suggest some powerful chips that will borrow a key page from AMD’s Ryzen CPU manual.
One of the first things to understand about RDNA 3 is that it will make another change to how some of the components are understood with earlier architectures. With RDNA 2, the chip contained multiple shading engines, which in turn contained a series of dual compute units loaded with stream processors, texture units, and ray accelerator units.
For RDNA 3, the notion of a computing unit seems to have been replaced with workgroup processors which in turn contain stream processors and other elements, and the new models can simply be stuffed. This could be in part because AMD is adopting a smaller 5nm manufacturing process to fit more into a tighter space, and because it will be using a multi-chip module design – putting multiple GPU chiplets on one chip instead of one chip. monolithic – just like it has done on Ryzen processors. While this is still largely hearsay and speculation, consider the rest even less certain until AMD makes an official announcement.
Putting the new design into perspective, the Navi 31 is believed to have two chiplets, each with 30 workgroups, which contain 256 cores (or stream processors) each. This results in 7,680 cores per chiplet and a total of 15,360 cores for the entire Navi 31 chip – triple the number of stream processors found in the RX 6900 XT.
Common hardware leak @Greymon55 on Twitter suggests the Navi 31 chip plugs into 16GB of GDDR6 memory on a 256-bit bus and includes 256MB (or 512MB, according to sources for RedGamingTech) of the 3D Infinity Cache, greatly increasing performance to compensate for not using GDDR6X and running at up to 2.5 GHz. A more recent leak of Benchlife indicated that it could have 20GB, with the alleged model RX 7900 XTX having 24GB.
The Navi 32, meanwhile, would have 40 workgroup processors, 12GB of GDDR6 on a 192-bit bus, 192MB of 3D Infinity Cache, and would run between 2.6 and 2.8 GHz.
The Navi 33 drops to 16 workgroup processors, 8GB of GDDR6 on a 128-bit bus, 64MB of Infinity Cache, and clocks between 2.8 and 3.0 GHz.
To put this in more perspective, the Navi 31 would have the aforementioned 15,360 stream processors, the Navi 32 would hit 10,240, and the Navi 31 would boast 4,096 (an impressive distance from the number on the Radeon 6900 XT).
While teraflops don’t tell us everything about a GPU’s performance, it can be a useful metric for comparison. And taking the core counts and clock speeds, we expect the Navi 31 to peak at 76.8 TFLOPS of FP32 performance, the Navi 32 to get 57.3 TFLOPS, and the Navi 33 to hit 24.6 TFLOPS.
We expect the new chips to deliver a huge increase in efficiency. Switching to a small manufacturing process will play a role in this. And AMD Executive Vice President Rick Bergman, even before the release of RDNA 2, said that RDNA 3 would offer a similar leap in performance per wattwhich should mean they will be 50% more efficient than RDNA 2. That doesn’t mean they still won’t be energy hungry, as RedGamingTech suggests Navi 31 boards should consume around 375W of power, but can go up to 450W.
We’ll have to wait and see how much of this turns out to be true.