Using the graphics card-only power draw figures presented earlier in the review, here we present performance per Watt on a per-game basis for all twelve games we tested at 1080p.
Per-Game Results at 1080p:
Click to enlarge.
12-Game Average at 1080p:
As we thought, overall efficiency has come on hugely versus Alchemist. Intel claims a 50% improvement to performance per Watt, a figure I was able to match exactly when comparing the B580 to the A750 at 1080p. That does mean the B580 lags behind the RTX 40-series and Ada Lovelace, but it's already on par – if not slightly more efficient than RDNA 3, so I'd say this is a hugely impressive leap for just a single generation.
Ray tracing results
As a bonus, we now include the power figures for all eight games we test with ray tracing enabled.
8-Game ray tracing average:
Ray tracing efficiency also scales similarly, with the B580 delivering 53% more performance per Watt than the A750.