Apple Mail vs Thunderbird performance I'm running Apple Mail 5.3 and Thunderbird 17.0.4 on Mac OS Lion 10.7.5. The system I'm running those apps it's an iMac with 3Gb of RAM and 2.4 GHz Intel Core 2 Duo.

I run both applications at the same time and I got those results looking with the Activity Monitor.



As you can see, Apple Mails consumes a little bit less than Thunderbird but uses more virtual memory.

My question is, which one has better performance? Apple Mail or Thunderbird? I ask this because that was a puntual test, and I don't know if they get stressed when looking for RSS feeds or email on the inbox.

Do you know any other mail app which works better looking on the performance?
usualy mail applications all lay around the same in preformance and memory depending on size of inbox, file sizes, nr of RSS's there are many variables, but the general thing is they only use enough to have an impact on performance, whenever they are grabbing new information! (not even then) but in order to minimize CPU usage you should set "grab mail" too manual

as far as tip on good mail client.. check out sparrow!