They can be compared with real world use tho.
I had a g nex. I have a razr and rezound. And between all 3 the razr is best overall for phone and data reception. This is after updates to all 3 phones. Don't have a g nex so can't compare 4.0.4 radios. And before updates my rezound had the best 4g than all 3. Now my razr and rezound are about equal, but my razr has the more reliable connection. 4.0.3 radios did improve 3g on my g nex tho.
When I say the razr is best, not talking about speeds, taking about getting and holding a signal. And all 3 can suffer from data drops. The x factor is the severity of the data issues between these LTE phones. My rezound requires reboots, my razr and g nex didn't.