Here is an interesting chart I found on a Georgian grammar website, www.armazi.com/georgian. If you look at Columns B and C (Asomtavruli and Nuskhuri versions of the alphabet), you will see that a lot of the letters, while not matching Armenian sounds, are either identical or nearly identical to the Armenian alphabet.
Especially of note are #5 (ղ), 13 (ծ,ժ), 14 (հ), 16 (ա), 18 (վ), 20 (ն), 22 (վ), 25 (փ), 28 (ց), 29 (ի), 30 (ը), 32 (պ), 37 (տ) and 38 (ծ,ժ). There are just too many "coincidences" for there not to be any link between the Georgian and Armenian alphabets.
Especially of note are #5 (ղ), 13 (ծ,ժ), 14 (հ), 16 (ա), 18 (վ), 20 (ն), 22 (վ), 25 (փ), 28 (ց), 29 (ի), 30 (ը), 32 (պ), 37 (տ) and 38 (ծ,ժ). There are just too many "coincidences" for there not to be any link between the Georgian and Armenian alphabets.