Lunar Lake is very clearly a response to the M1, not its larger siblings: the core counts, packaging, and power delivery changes all line up with the M1 and successors. Lunar Lake isn't intended to scale up to the power (or price) ranges of Apple's Pro/Max chips. So this is definitely not the product where you could expect Intel to start using a wider memory bus.
And there's very little benefit to widening the memory bus past 128-bit unless you have a powerful GPU to make good use of that bandwidth. There are comparatively few consumer workloads for CPUs that are sufficiently bandwidth-hungry.
And there's very little benefit to widening the memory bus past 128-bit unless you have a powerful GPU to make good use of that bandwidth. There are comparatively few consumer workloads for CPUs that are sufficiently bandwidth-hungry.