On package memory disproportionally affects idle power consumption more than load. In Cinebench 2024, which is a heavy load test, on package memory likely makes little difference.

ST is far better than MT for this node comparison. MT is heavily influenced by core count, clock speed, core configuration. Panther Lake also has 3 tiers of cores compared to Arrow Lake's 2. The architecture for MT is entirely different.

Meanwhile, for ST, a core is a core. It's less or not affected by architectural changes to core configurations.