At 5.3GHz boost, one step under the family's 5.4GHz — does laptop AI feel the difference on the 8940HX?

  A 5.3GHz-to-5.4GHz gap mostly evaporates at the laptop power wall: under load the chassis decides which clock holds steady, and 0.1GHz rarely converts into sustained throughput. The 8940HX's 16 cores/32 threads, 64MB of L3 and AVX-512 are all in plain view — short quantized inference, prefill and embedding do their jobs, and its AI distance from the 8945HX is far smaller than the price distance.

  When the same chassis sells in two variants at a clear price gap, paying extra for 0.1GHz is a poor trade; when the discount falls on this chip, take it. A laptop's AI ceiling is set by how much power the cooling feeds and how much memory is installed, not by the suffix. Spend on a well-cooled chassis and RAM modules before spending on model numbers.