Not as much as I hoped. That one has had overheating problems since I got it. I put that bigger heat sink on and the nactua fan to prevent overheating. I have to run 1 step down from default voltage and default hash rate still to prevent overheating
The solosatoshi one so far has been much better quality.
I had the same issue with mine with the icetower and noctua fan. found the sweet spot for it at 600/1100. getting 1.3TH/s pretty consistently with it now
Would you look at that. I think it worked!! 
glad to see!
the benchmarks chart on this page was helpful for me https://www.solosatoshi.com/how-to-overclock-bitaxe-gamma/
