Someone

float r1 = (x1 > y) ? 1.0f : 0.0f;float r2 = (x2 > y) ? 1.0f : 0.0f;float r3 = (x3 > y) ? 1.0f : 0.0f;float r4 = (x4 > y) ? 1.0f : 0.0f;Would compile into 4 conditionals.On the other hand, an HLSL step:float4 r;float4 x;r = step(x, y.xxxx);would compile to one ASM instrict.