The chart below compares the two accounts using historical returns for the first 15 years (accumulation phase of the FIA), and projected returns thereafter (withdrawal phase for the FIA). (annuities.blueprintincome.com)
During the retirement and withdrawal phase calculation of the requisite retirement corpus is a must. (investmentpedia.org)
With these, there is an initial accumulation phase with no payout and a later withdrawal phase where payments commence. (moneysense.ca)