Mysterious AMD 4700S processor discovered, which could form the basis of the Xbox Series X console


Mysterious AMD 4700S processor discovered, which could form the basis of the Xbox Series X console

A Twitter user under the pseudonym InstLatX64 discovered information about the mysterious AMD 4700S processor, which is part of a Desktop Kit. We are likely talking about the system used as a prototype in the development of one of the Xbox Series game consoles from Microsoft.

Amd 4700S processor
And 4700S processor

While the AMD 4700S model is not officially part of any Ryzen processor family, it appears to be from the Ryzen 4000 (Renoir) generation of mobile APUs based on the Zen 2 architecture. Xbox Series X and Series S consoles feature custom-designed eight cores for Microsoft. AMD processors with Zen 2 architecture. The company never mentioned the names of the chips in official documents but only indicated their clock frequencies. For example, for the Xbox Series X console processor, the maximum core frequency is 3.8 GHz, and in the mode of simultaneous multithreading (SMT) – 3.6 GHz. For the chip in the Xbox Series S set-top box, the declared values ​​are 3.6 and 3.4 GHz, respectively.

Additional information about the mysterious AMD 4700S chip was found in the Geekbench 5 synthetic benchmark database. It states that the processor has 8 cores and 16 threads, and 8 MB of the cache memory of the 3rd level. The chip is reported to operate at a base frequency of 3.6 GHz, and its turbo frequency is 4.0 GHz. The development kit, which used a processor, was equipped with 16 GB of RAM.

The AMD 4700S scored 998 points in a single-threaded test in a multi-threaded test – 8589 points. In comparison, AMD’s flagship mobile Renoir processor, the Ryzen 9 4900HS, averages 1083 and 6994 points in single-threaded and multi-threaded tests of the same benchmark, respectively. Thus, the single-threaded performance of the Ryzen 9 4900HS is 8.5% higher, but the AMD 4700S is up to 22.8% faster in multi-threaded tasks.

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An equally curious detail is that AMD recently released a set of drivers for the MD 4700S Desktop Kit. It includes a driver for a chipset, a sound driver, and a driver for a network card. Digging into the code, Tom’s Hardware journalists found a mention of the name “Cardinal,” which may be an internal codename for a specific development kit. The files contained in the driver set are very recent. They were released on April 19.

As a rule, development kits are not available for public sale. However, the AMD 4700S Desktop Kit has been spotted in the Finnish retailer Tulostintavaratalo’s database. The store offers to purchase a set for 325 euros including taxes. They promise to deliver within 14-30 days.

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