Two novel interface fracture energy measurement techniques, the modified clamped beam bending and the modified cantilever bending, are compared, on a thermal spray coating/substrate system consisting of air plasma sprayed Alumina over Mild steel. Previously, every such geometry was used to determine one value of interface fracture energy from one sample each, which made it mandatory to test materials at high volumes to gather enough statistics. In the present case, multiple values of interface toughness are obtained on the same sample by converting both the geometries to a high throughput condition for the first timeTo precisely control the length of the crack, digital image correlation (DIC) based crack opening displacement (COD) is used as a feedback loop. Energy release rate, G and phase angle, ψ are calculated as a function of load and crack length using finite element simulations for both the techniques. The critical load from the experiments is used to determine the interface fracture energy GC. The interface fracture energy and the standard deviation is found to be geometry dependent, with the modified clamped beam yielding a GC of 56 ± 16 J/m 2, while the modified cantilever results in a GC of 89 ± 5 J/m 2. The role of the phase angle and the mode mixity ratio on the interface fracture energy and the resulting spread in the data is discussed. The advantages and limitations of the two geometries are contextualised for testing a variety of thermal spray coating/substrate combinations and other ceramic/metal interfaces.