What is very interesting is the GPU performance numbers that Apple is claiming for their new M1 chip. For graphics Apple is comparing the new 13" MBP with the M1 chip against the previous 13" MBP with the 1.7 GHz quad core i7 and the Iris Plus 645.
Apple is claiming a 2.9x performance increase in Shadow of the Tomb Raider with the new M1 MBP vs the Intel MBP. The fine print of the test is the following:
BareFeats has some benchmarks of the 13" MBP running the same Shadow of the Tomb Raider benchmark at 1280x800 (slightly lower resolution). The Intel 13" MBP gets 18 fps in that benchmark, so if we apply a 2.9x boost to simulate the M1 chip, we get 52.2 fps. The 16" MBP with the 5500M in the same benchmark gets 66 fps. This puts the 5500M as around 25% faster then the GPU in the M1 chip. It also places the M1 chip as more powerful then the older Radeon GPUs in the previous 15" MBPs such as the 560X and Vega20.
Obviously I have made a lot of extrapolations and assumptions that are certainly not 100% accurate, but we can safely assume that M1 equipped Macs will be very capable of some light gaming at acceptable frame rates.