AMD Confirms Ryzen 3000 "Matisse" Features Soldered IHS
AMD senior technical marketing manager Robert Hallock, responding to a specific question on Twitter, confirmed that the 3rd generation Ryzen processors do feature soldered integrated heatspreaders (IHS). Soldering as an interface material is preferred as it offers better heat transfer between the processor die and the IHS, as opposed to using a fluid TIM such as pastes. "Matisse" will be one of the rare few examples of a multi-chip module with a soldered IHS. The package has two kinds of dies, one or two 7 nm "Zen 2" 8-core CPU chiplets, and one 14 nm I/O Controller die.
The most similar example of such a processor would be Intel's "Clarkdale" (pictured below), which has its CPU cores sitting on a 32 nm die, while the I/O, including memory controller and iGPU, are on a separate 45 nm die. On-package QPI connects the two. Interestingly, Intel used two different sub-IHS interface materials for "Clarkdale." While the CPU die was soldered, a fluid TIM was used for the I/O controller die. It would hence be very interesting to see if AMD solders both kinds of dies under the "Matisse" IHS, or just the CPU chiplets. Going by Hallock's strong affirmative "Like a boss," we lean toward the possibility of all dies being soldered.Image Credit: TheLAWNOOB (OCN Forums)
The most similar example of such a processor would be Intel's "Clarkdale" (pictured below), which has its CPU cores sitting on a 32 nm die, while the I/O, including memory controller and iGPU, are on a separate 45 nm die. On-package QPI connects the two. Interestingly, Intel used two different sub-IHS interface materials for "Clarkdale." While the CPU die was soldered, a fluid TIM was used for the I/O controller die. It would hence be very interesting to see if AMD solders both kinds of dies under the "Matisse" IHS, or just the CPU chiplets. Going by Hallock's strong affirmative "Like a boss," we lean toward the possibility of all dies being soldered.Image Credit: TheLAWNOOB (OCN Forums)