source: https://citra-emu.org/entry/improvements-to-hardware-renderer/

Cut to the chase, how fast is this?

from this:

 

to this:

 

Very fast. Test results across various computers show that it averages out to be a 2x speed boost. With the new update, Citra will use much more of your GPU, removing some of the dependence on a CPU with high single-core performance. As always, the actual difference will vary by game and by your specific hardware configuration! In celebration of this massive improvement, we wanted to share some of the successes and struggles we’ve had over the years with the hardware renderer.

 

Inaccuracy bug's fixed:

From this:

to this:

 

performance gains: