They are nowhere near identical
Raptor K1 gaming: 2x USB ports on the back (labelled "mouse" and "headset" to fit the gaming scheme), Full N-Key Rollover, MX Brown or MX Black (depending on revision, no way to tell without receiving it), usually double shot or lasered thick keys, includes 8 key stoppers and 8 glow-in-the-dark blue keycaps
G80-1800: no usb ports, 3 key roll over, usually mx black unless special order, usually lasered keys unless special order or vintage
And to clear it up, the Raptor K1 I have does have normal MX blacks. No modified springs, no different plungers.