Again, I am hesitant to speculate. For example, the SFT25R 5050 looks exactly like the SFT25R 3535, and it is natural to assume that they are related, but dissection reveals that they use different dies.
At 30A (where the LHP73B test ends), the LHP73B achieves under 8900lm, while the SFH55 hits 10,000. It’s unclear how much of this is attributable to the larger footprint, and how much to CCT (likely very little since the spectral efficacy levels out and falls as a function of CCT) and tint.