And very likely the intel integrated graphics in existing mac's (aka not Xe). The AMD integrated graphics are easily 3x faster in similar product lines in many benchmarks vs the intel's. Which means its probably roughly the same as the Amd product lines. Large parts of the presentation perf improvements are probably GPU related.
Course i'm viewing this with a healthy dose of skepticism, having been around in the PPC days when you would think from apple's marketing that the PPC based macs were massively faster than your average PC. In reality they were ok, but rarely even the fastest device across a wide swath of benchmarks, mostly sort of middling.
Are they really saying this vs dGPU?