This is what I'm getting on an Asus 1080Ti - stock settings.

server set difficulty to: 00083126e978d4fdf3b645a1cac083126e978d...                         
Sol/s: 741.516111 1.881048 I: 394.203635 I2: 403.740819 Avg: 741.516111 Shares/s: 0.200000  luck: 0.000270  ++                        
Sol/s: 728.263312 1.879700 I: 387.718529 I2: 387.718529 Avg: 734.889712 Shares/s: 0.150000  luck: 0.000204  +
Sol/s: 721.288553 1.873641 I: 387.492846 I2: 387.492846 Avg: 730.355992 Shares/s: 0.200000  luck: 0.000274  +++
Sol/s: 743.576991 1.885268 I: 387.211494 I2: 387.211494 Avg: 733.661242 Shares/s: 0.225000  luck: 0.000307  +++