Stream SDK 2.1

[bitpop]

I saw that 2.1 is better than 2.2 or 2.3. Is that true only for linux or should I still use 2.1 in windows?

[Meatball]

I've definitely gotten a bit better performance with 2.1 over 2.4 in windows.  Nothing drastic, but a bump or 4-5% with 2.1's.  Just know that if you install the newer Catalyst drivers (11.4, 11.5) they'll try to install newer Stream SDK's as well.  Make sure you uncheck that part of the install.

[bitpop]

Thanks! I installed stream sdk 2.1 but gui miner is still saying there are no open cl devices.. I have a 5570

[MiningBuddy]

With Windows I get better performance with 11.5 drivers, 2.4 SDK and phoenix with phatk kernel.
I am using 11.5 drivers and 2.1 SDK in my Ubuntu box with just the standard kernel.
Can anyone confirm if 11.5 + 2.4 SDK with phoenix & phatk kernel is better or worse with Ubuntu?
Using 5870's.