The faster i7 like the i7-1365U models offer only higher clock rates (and a faster iGPU). Thanks to the similar clock speed, the Core i5-1335U is very similar to the older Core i7-1250U (+100 MHz P-Cores base clock rate).

Compared to the P-series (28W) or H-series (45W), the 15W TDP may limit the sustained performance. The CPU supports only 'Essentials' vPro management features. The performance of the E-cores should be similar to old Skylake cores (compare to the Core i7-6700HQ). The clock rate ranges from 1.3 to 4.6 GHz on the performance cluster and 0.9 to 3.4 GHz on the efficient cluster. The P-cores support Hyper-Threading leading to 12 supported threads when combined with the E-cores. It was announced in early 2023 and offers 2 performance cores (P-cores, Golden Cove architecture) and 8 efficient cores (E-cores, Gracemont architecture). The Intel Core i5-1335U is a mid-range mobile CPU for thin and light laptops based on the Alder Lake architecture (Raptor Lake-U / RPL-U series).

Intel Core i5-1335U ► remove from comparison

Core 2 duo 2.4 ghz vs i5