Well currently I have an i5 (generation 2) laptop which is several years old (3 I think) now and wasn't top of the line even when I first picked it up.  I'm pretty sure it doesn't have the graphics card capability for Octane; I know when I first picked up Luxus I downloaded the Lux version that was for GPU (by mistake) and got an error message that I couldn't run it and had to then download the CPU Lux version, so I'm fairly certain I couldn't run Octane.  Just on the off chance though, I probably ought to try the demo version of Octane to see if it's workable...