If you can't decide which CPU to buy, you can make a choice by looking at the Intel Core i7-1255U Cinebench r20 score multi and single core test and decide how powerful is this processor, is it a good processor or a bad one to buy. Here you can find useful information from Cinebench r20 benchmark. A step-by-step analysis of all the specifications, to make it easier to read, is presented in the form of the table. After looking at the data of parallel test and video, you can already make an briefed decision about do you need to buy Intel Core i7-1255U or not.
All the figures in the text above do not mean that you should be guided entirely by them and trust a simple quantitative comparison. Be sure to watch benchmarks video and read the reviews of real owners of Intel Core i7-1255U before deciding buy this processor or not.