Comparison between the e-MANTIS predictions and the measurements from the ELEPHANT simulations (Cautun et al. 2018; Gupta et al. 2022) for SO haloes with Δ = 200c at z = 0 (left) and z = 1 (right). Top panels: measured HMF boost from the simulations (solid circles) and predictions from the emulator (dashed lines). The noise in the simulation measurements and the emulator predictions are given as error bars and a shaded area respectively around the corresponding lines (not always visible for small errors). Bottom panels: relative difference between the simulation measurements and the emulator predictions. The shaded areas mark the 1σ confidence interval, combining both the simulation data noise and the emulator accuracy.