Tuesday, October 2, 2012 5:24:07 PM
Originally posted by ruario:
An SSE2 capable processor (Pentium 4, Opteron, Athlon 64 or newer) is now required to run Opera
What is confusing is that the change didn't actually happen in that snapshot after all but rather in a later snapshot. It was simply a mistake that the change was listed early. So when the change did go in many people did not associate it with that changelog entry and couldn't understand what was happening.
As it happens the SSE2 requirement gives a nice little performance boost but at the same time prevents some users with older hardware from running the build. After much internal discussion we have decided that we will probably revert some of our optimizations for the 32-Bit build, thus allowing users with older processors to run Opera again. We will however keep the changes we made in the 64-bit build.
This effectively means that the 64-Bit build becomes our high performance build and 32-Bit is for backwards compatibility. If a user wants to run the fastest possible Opera and has 'modern' hardware he/she should really be running the 64-bit build in any case.
Look out for a fix to DSK-374632 (Opera does not run on Athlon XP [K7] processors) in some future snapshot changelog.