https://videocardz.com/newz/intels-upcoming-core-i5-1350p-cpu-benchmark-shows-6-uplift-over-predecessor
 
Intel’s new Core i5-1350P processor has just been tested with Geekbench software providing first performance figures on this new 12-core CPU for low-power laptops. This leak appears exactly a month after Core i7-1370P was featured in the same benchmark. This CPU offers 12 cores and 16 threads, which means 4 Performance Cores combined with 8 Efficient cores. The same configuration was used for current-gen i5-1250P CPU. What has changed are the clocks, the base clock is now 1.9 GHz (+200 MHz) while the turbo clock reaches 4.7 GHz (+300 MHz). The CPU has appeared alongside Acer TravelMate P614-53 laptop, which is a lightweight laptop for business. Intel’s P-series are very commonly used by such systems that can rely on integrated graphics only.
 
Since 12th Gen Core P-Series are not listed in the official Geekbench ranking, finding a reference point for comparison could be problematic. However, Notebookcheck have suitable data based on their own testing which shows that Core i5-1350P is 6% faster in single-core test and 2% faster in multicore compared to the predecessor (Core i5-1250P).
 
Companies such as Acer are to announce new thin-and-light laptops very soon. Intel is set to launch its 13th Gen Core P series as early as next week at CES 2023. 
 
Personally I find the increase in performance quite marginal.