Intel's Tiger Lake Laptops are up and coming, on AMDs side Renoir is in close vicinity. Both 'APUs' have of course an integrated GPU, for Renoir which is Vega based on 8CUs (Ryzen 4000U), and Intel with the new Xe architecture (Gen12) GPU. Some benchmark scores have popped up on the web. 

And since the benchmarks are available for both, we can compare a little. The benchmark in question is 3DMark Night Raid. PC enthusiast TUM_APISAK has spotted these scores btw, and we can compare the Core i7-1165G7 "Tiger Lake-U" processor (15 W), against AMD Ryzen 7 4800U (15 W), and the mainstream-segment Ryzen 7 4800HS (35 W), in 3DMark "Night Raid." 3DMark Night Raid is not that commonly used but is a test that shows integrated GPU performance based on the DirectX 12 API.

Scores:

• 4800U scores - 64.63 in GT1 / 89.41 FPS in GT2
• i7-1165G7 Gen12 Xe iGPU - 27.79 FPS in GT1 / 32.05 FPS in GT2