ESP8266 FW flash question, how can i tell if I have an 8Mbit, 16Mbit, etc?

Sorry for the basic question but I just got this thing and the specs don’t say much. The chip says It’s an ESP8266EX and the current FW is 00170901. The reason I ask this is I was trying to update the firmware to a GUI FW using this link but had no luck. I was unable to see the AP or use AT commands any longer. So then I attempted to use another ESP8622 FW upload tool which came recommended. It flashed the firmware fine w/o error. I “think” i did it correctly and used the proper addresses but I guess the only question I’ve got is if I’ve got an 8Mbit, 16Mbit, etc. 8266. Is there some reference # I can find somewhere to figure that out?

I don’t know if it matters but I’m using the arduino to actually flash the FW and grounding the GPIO 0 pin to put it into update mode.

Dave

I just realized there is a specific board for this module so if I find anything i'll report back.

Dave