Its just a shame I am AMD 
Just a quick note for anybody updating to Windows 10 (and associated latest AMD drivers). On Windows 8.1 I was able to download the SpreadX11 miner and mine away reasonably happy without an sgminer.conf file. On Windows 10 this will not work as sgminer will not take your card out of power saving mode leading to very low hashrates (slower than CPU mining!). It is easy to fix...you just need to create an sgminer.conf for your AMD card with appropriate parameters to force the AMD drivers to wake themselves up from power saving mode.
I just googled for a .conf file for X11 for my card and those parameters worked fine for me.
Just a quick note for anybody updating to Windows 10 (and associated latest AMD drivers). On Windows 8.1 I was able to download the SpreadX11 miner and mine away reasonably happy without an sgminer.conf file. On Windows 10 this will not work as sgminer will not take your card out of power saving mode leading to very low hashrates (slower than CPU mining!). It is easy to fix...you just need to create an sgminer.conf for your AMD card with appropriate parameters to force the AMD drivers to wake themselves up from power saving mode.
I just googled for a .conf file for X11 for my card and those parameters worked fine for me.
What hashrates are you getting?
Hi!
About 1.2M with an AMD R9 270
I get a *lot* more than that with your optimised X11 miner with the same card
Yeah, but you also do a SHITTON of stupid sha256 hashes that aren't done in X11 with SpreadX11.
Being generally clueless, I had the good fortune to be on Slack when georgem unravelled what was going on with SPRX11. I like what it stands for but I hate how inefficient it is.
Why over 3000 SHA256 hashes were used, I'll never know.
We may never find out. Something to be addressed one day. Inefficiency by design is inexcusable. Roll on X11 ASICS
