Wow … that’s more than my whole system! The Xbox Series Development Kit is available on eBay for around 1350 EUR.
The dev kit also known as XDK obtained by Gamers Nexus is a 2020 version of the development kit featuring AMD APU codenamed “Scarlett”. It is equipped with 8-core AMD Zen2 architecture CPU and RDNA “Navi” graphics processing unit with 56 Compute Units. Those specs are likely the same for the retail and development kits, but there might be changes to the clock speeds.
As confirmed by GN, the development kit that was torn down features not 16GB of GDDR6 memory but 40GB, which might have been the reason why early Xbox Series X leaks have mentioned higher capacity at some point before the console was released.
The XDK is equipped with 40GB of Samsung GDDR6 memory clocked at 14 Gbps. It is unclear if the memory is divided like on the retail unit, which has three pools for graphics (10GB @ 320-bit), system memory (3.5GB @ 192-bit) and the operating system (2.5GB @ 192-bit).
More at Videocardz