AMD started mixing nodes in 2019 when it used the 7 nm node for the core complex die (CCD) and the 12 nm node for the IO.
In context: AMD launched the Ryzen 9 7950X3D at the end of last month and welcomed an enthusiastic response to its second-gen 3D V-Cache despite some mixed opinions about its usefulness in a 16-core CPU. Now they’ve shared some of the technical details that explain its performance.
AMD started mixing nodes in 2019 when it used the 7 nm node for the core complex die (CCD) and the 12 nm node for the IO die of the Zen 2 microarchitecture. AMD recently confirmed to Tom’s Hardware that Zen 4 steps it up to three nodes: the 5 nm node for the CCD, the 6 nm node for the IO die, and the 7 nm node for the V-Cache.
The V-Cache sits over the middle of the CCD and the eight cores flank the sides.
