The 860M is a maxwell chip and is supported by the latest optimized miners.
Download the latest
1.5.69(sp-MOD) is available here: (24-sep-2015)
https://github.com/sp-hash/ccminer/releases/And mine quark based coins. f.eks Sharkcoin.
5MHASH/s @40watt
2 times more profitable a gridseed blade mining scrypt at 5.2MHASH
You will earn around
$0,48 per day. ($175,2 a year)