According to a new MacG report, Apple is planning to debut a spec bump for the iMac lineup next week. Unfortunately, it doesn’t appear these will be the Retina iMacs that have appeared in recent OS X beta builds. Instead, it seems we’re only due for a slight processor speed increase, with each model gaining only 100 MHz.

A slight spec bump is probably not what users are looking for most in an updated iMac, and while we know Apple is working on Retina models, it doesn’t seem they’ll be hitting the market any time soon. On the upside, MacG also notes that there’s a possibility of a price decrease with this refresh.