Is Thunderbolt the same as Firewire 800?

Does FireWire to Thunderbolt really work in this instance?

The Thunderbolt FireWire adapter from Apple is a one way connector. Apple's Thunderbolt FireWire adapter can be connected to a computer via its FireWire connector, but it won't provide Thunderbolt over FireWire.

What is a FireWire 800 Port in the Mac? FireWire ports provide power so that connected devices don't require their own power cords. Many Mac computers include one or more firewire 400 ports which can transfer data at up 400 megabits per seconds (Mbps). FireWire 800 ports can transfer data at speeds up to 800 Mbps.

People often ask if FireWire 800 can connect to Thunderbolt 3 as well.

Thunderbolt 3 FireWire To connect a FireWire 800, FireWire 400 device with a new Mac via Thunderbolt 3, you will need a bunch of adapters. There is currently no Thunderbolt 3 adapter for FireWire, and it's unlikely that one will ever exist.

Which is faster Thunderbolt or FireWire 800?

Firewire 800 is a 800 Megabits per second interface. Thunderbolt uses bi-directional dual channel data transmission protocol. Firewire uses a peer-to-peer full duplex protocol. Thunderbolt is faster than other data transfer paths.