PS5 CPU Inside? AMD Says Eighty Different 4700S Designs Coming

by 9SIX
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AMD has confirmed to Tom’s Hardware that 80 systems based on its mysterious 4700S Desktop Kit will come to market, with official sales of the first systems obviously already underway.

The tale of AMD’s 4700S Desktop Kit, which comes complete with a chip, motherboard, memory, and cooler, is a strange one. Almost all the details about AMD’s 4700S kit for desktop PCs came via product listings and leaks before AMD even listed the chip on its site, and the company launched the 4700S without any of its normal communication with the press via briefings or press releases.

Making things even more interesting, the system almost certainly uses a similar processor to the Sony PlayStation 5 (or a variant thereof with some swapped IP blocks), but with a disabled GPU.

We followed up with AMD in regards to the 4700S Desktop Kit, and the chipmaker revealed that over 80 systems built around its 4700S kit will come to market:

“We expect to see over 80 designs come to market from our SI [System Integrator] partners beginning on June 24th. Prices of these systems will be announced by our SI partners in due course.” – AMD representative.

4700S PS5

(Image credit: @aschilling via Twitter)

The first systems based on the 4700S are already freely available on the open market, albeit only in certain areas of Asia. Therefore, pictures of the naked 4700S chip have surfaced.

Given that the 7nm 4700S Desktop Kit’s chip visually matches the PS5’s ‘Ariel’ SoC, has eight Zen 2 cores with 16 threads, and uses GDDR6 (8GB or 16GB) instead of the DDR4 memory found in modern PCs, it is almost certainly a close match to the silicon found in the PS5, albeit with a disabled RDNA2 integrated graphics engine and possible alterations to CPU clock speeds. That’s led to speculation that the 4700S is merely a defective PS5 SoC that AMD has repurposed. That might make sense as it would allow the re-use of silicon that would otherwise end up in the garbage bin due to defects (perhaps in critical pathways).

The 4700S could also be a close cousin to Ariel, but with adjustments to the various IP blocks, like memory controllers, interrupt handlers, system management controllers, and hardware-accelerated video encode/decode blocks. That would mean the 4700S is its own semi-custom design that leverages some, but not all, of the features found in AMD’s other SoCs, like Ariel.

It’s quite the mystery, so we asked AMD if the 4700S is built with the same SoC used for the PS5:

“AMD 4700S Desktop Kit is its own unique solution, designed to address the desire for robust, high-core count performance in the mainstream market – ideal for multi-tasking, productivity, and light 3D workflows.” – AMD representative.

AMD’s response is actually non-committal, as it refers to the desktop kit and not the chip itself. We’ve asked for more details, but the company has been tight-lipped regarding the new systems and has conspicuously avoided using any Ryzen branding around the kit, so we aren’t holding our breath for definitive answers.

In either case, we’ve already seen these systems show up at retailers in the Asian market, often retailing between ~$320 to ~$700 (converted to USD), but the systems come with unique trimmings, like SSDs, GPUs, PSUs and cases, that ultimately impact pricing.

AMD has confirmed that these systems, which are obviously not intended for leading-edge gaming machines, are coming to market, but it hasn’t clarified if we’ll see them at U.S. retailers anytime soon.


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