On my iPhone 5, Geekbench says it a CDMA model?

I got an iPhone 5 in Australia, it is running on Telstra's 4G network. I got the Geekbench app on my iPhone 5. And it says it's a CDMA model. I thought it was meant to be GSM, because every other iPhone I have had was GSM. Also on Apple's website (http://www.apple.com/iphone/LTE/) it says that Australia is GSM, so why is my iPhone CDMA?

Because your iPhone model is the A1429 model, which is a full world phone meaning that it has support for GSM and CDMA on certain frequency bands (there's another model that has different bands for other countries, Apple wanted to reach s many countries as possible). Your iPhone is capable of both CDMA and GSM, Geekbench won't list both however.