In context: A few weeks ago, AMD quietly began selling the 4700S desktop kit, a small bag of hardware believed to be based on the PlayStation 5s processor. The CPU-Z recognizes the 4700S as a Ryzen processor, although AMD does not officially market it that way. On AMD’s website, it is listed as an 8-core, 16-wire chip based on the Zen 2 architecture.
The AMD 4700S kit comes built into a small motherboard, which can pack 8 GB or 16 GB of GDDR6 memory soldered on it. One reviewer found that it is designed to clock up to 3.2 GHz, and the memory runs at 14 Gbps. The set also comes with a cooler similar to AMD’s Wraith Stealth. Unfortunately, the motherboard is a bit of a bottleneck.
The only PCIe x1
Sony PlayStation 5 (Ariel) vs AMD 4700S Desktop Kit (photo: @iFixit & @bodnara) pic.twitter.com/7bAK12l0jh
– Andreas Schilling (@aschilling) July 2, 2021
Ariel, PS5s SoC, shares a driver and most specs with the 4700S. It has the same eight cores, but slightly higher clock speeds. It is similarly connected to 16 GB of GDDR6 memory. And if it were to be connected to a discrete GPU, it would also have limited bandwidth because it was not designed to accommodate additional cards.
Asked if the 4700S used branded or modified PS5 hardware, AMD told Tom’s Hardware that “the 4700S Desktop Kit is its own unique solution, designed to meet the demand for robust, high-core performance in the regular market.”
A leading theory is that defective Ariel chips are recycled to 4700S chips. There’s probably something wrong with Ariel’s integrated GPU inside the 4700S, or it may not maintain the same clock speeds or be too thermally inefficient. Alternative theories suggest that the 4700S is a prototype of Ariel or a design made with another integrated GPU in mind.
Whatever the legacy, the 4700S is here now. “We expect to see over 80 designs coming to market from our SI partners starting June 24,” AMD said recently. “The prices of these systems will be announced by our SI partners in due course.” Currently, 4700S kits and systems are sold only in Asia, but AMD has not indicated that it will be the permanent state.