One of the selling points of Ryzen 7 5700G is its integrated graphics capability. The graphics cores are based on the Vega architecture, which is fairly old. In the Ryzen 7 5700G, you'll find eight Compute Units, which result in a total shader count of 512. The graphics cores are clocked at a frequency of 2 GHz and share the system's main memory as graphics memory.
That's also the reason why we include an additional data point, DDR4-3200, to get a feel for how dropping memory speed from DDR4-3800 (green bar) to the more affordable DDR4-3200 (brown bar) impacts the FPS rates. Overclocking the integrated GPU was very easy, using either the BIOS or Ryzen Master. Everything above 2.4 GHz resulted in visual rendering artifacts, but a 20% overclock is still very impressive.
Last but not least, another benchmark shows the performance with the IGP memory reservation set to 2 GB in the BIOS (as opposed to the default of 512 MB). There really is no difference outside of margin of error. The underlying reason is that the graphics driver is able to dynamically allocate additional memory if 512 MB isn't enough, so neither scenario will "run out" of VRAM.
All the games on this page are running at their lowest possible detail setting (benchmarks on the "RTX 3080" pages use maximum settings, so they are not really comparable).
Individual Benchmark Scores