His CPU: i7, 2.8 GHz App Engine frontend CPU: 600MHz He does a test and finds that his CPU is 5x faster. 2800 MHz / 600 MHz = 4.67, so his findings match the

His CPU: i7, 2.8 GHz App Engine frontend CPU: 600MHz He does a test and finds that his CPU is 5x faster. 2800 MHz / 600 MHz = 4.67, so his findings match the documented instance speeds and yet he is surprised. His pricing math is all wrong. Instances live 15 minutes after the last request and you are charged for that. He claims that the amount of work he can do on his i7 CPU for one hour would cost $8 on App Engine. Taking into account his researched 5x faster speed, one hour would result in 5 hours on App Engine, 5 hours + 15 minutes after the requests would mean 5.25 hours * $0.08 = $0.42, which is far less than his $8 statement.