zen-4-and-rdna-3,-amd-wants-to-dramatically-improve-performance-per-watt

Zen 4 and RDNA 3, AMD wants to dramatically improve performance per watt

Not satisfied with the work done on the architectures Zen 3 and RDNA 2, AMD said it aims to dramatically improve the performance per watt of future products based on the Zen 4 and RDNA 3 architectures. The company will use better manufacturing processes but will also work hard on designs to squeeze as much as possible. .

by Manolo De Agostini published , at 09: 32 in the Video Cards channel

EPYC RDNA Radeon RyZen AMD Zen Ships

Although AMD is focused on Ryzen processors 5000 and Radeon RX video cards 6000 , the company has already been working for some time on the successors of these products, respectively based on architecture Zen 4 and RDNA 3 . Over the course of the latest events, AMD confirmed that both architectures are in the design phase , with the solutions Zen 4 which will be produced at 5 nanometers, while the RDNA 3 GPUs will use an unspecified “advanced process”. In the past few hours, speaking to The Street website, executive vice president Rick Bergman , has made a little point of the situation and talked about next generation solutions.

RDNA 3, leap in performance per watt similar to leap RDNA 1 to RDNA 2

Bergman explained that with RDNA 3 AMD will not only use a more advanced manufacturing process than the 7 nanometers used for the Navi 2X GPUs, but will an even more effective use of Infinity Cache , great novelty of the RDNA 2 architecture, to guarantee a further advance in performance per watt . According to AMD, RDNA 2 offers a 50% performance improvement per watt over RDNA 1 and we should expect similar progress with RDNA 3.

“We aimed for very aggressive performance improvements per watt with our RDNA 2 GPUs and yes, we have the same will regarding RDNA 3 This is very important in several respects, because if your consumption is too high (as we have seen with our competitors), our potential users will have to purchase more powerful power supplies and very advanced cooling solutions. And, very importantly, it increases the cost of the card significantly . And inevitably, this means that the retail price goes up or the GPU cost has to go down “.

” So there are really a lot of efficiencies enze ?? if you can markedly improve your performance per watt. On the notebook front, this is even clearer, because you are in a very small space, you can offer more performance without resorting to exotic cooling solutions: we focused on this with RDNA 2 and a great focus remains also for RDNA 3 “.

” Regarding Infinity Cache, it’s something that ties into all of this to some extent. If you’ve been into graphics for a long time, you realize that there is a very clear correlation between memory bandwidth and performance. And as a result, it increases the speed and expands the memory bus to increase performance. Unfortunately, both of these things increase consumption “.

Zen 4, not just 5 nanometers: many changes architecture

As regards Zen 4 , Bergman explained that in addition to taking advantage of the advancements of the 5-nanometer process, AMD will improve the branch prediction unit, the caching subsystem, the gate number in the pipeline and there will be advancements in IPC as well. From what we know, Zen 4 CPUs will be accompanied by a completely new platform, no longer based on the AM4 socket. We are talking about the AM5 platform, with support for DDR5 and various other improvements.

“(Date) the maturity of architecture x 86, you have to work, more or less, on everything. With Zen 3 we worked on a long list of things to get the 19% of earnings regarding the CPI. Zen 4 will also have a long list of things and we look at everything from the cache to the branch prediction, up to the number gate in the execution pipeline. Everything is scrutinized for more performance. Certainly the production process opens an additional door for us to obtain better performance per watt and so on, and we will benefit from it “, concluded Bergman.

It is currently unclear which AMD product will be the first to be made at 5 nanometers, but at the moment the only sure thing is that Zen 4 will be the basis of the EPYC Genoa processors planned for next year and intended for the server sector.