AMD Radeon RX Vega M GH (Kaby Lake-G)

The RX Vega M is one of the more unusual GPUs on this list: it shipped soldered alongside an Intel CPU core on the same Kaby Lake-G multi-chip module in 2018, rather than as a standalone part from either company. Underneath, it's GCN 5 (Vega) silicon with 1536 stream processors and a 1190 MHz boost clock.

4GB of HBM2 on a wide 1024-bit bus gives it 179.2 GB/s of bandwidth - generous for its 65W power budget - which let a handful of ultra-thin 2018-era laptops punch above their weight in gaming without a conventional discrete GPU module. It's a historical curiosity more than a current recommendation.