Which drivers do you use for that graphics card?0%10%20%30%40%50%60%70%80%90%Sep/14Oct/14Nov/14Dec/14Jan/15Feb/15Mar/15Apr/15May/15Jun/15Jul/15Aug/15Sep/15Oct/15Nov/15Dec/15Jan/16Feb/1658.877.480.080.179.682.380.280.783.181.482.781.380.880.780.582.282.382.439.820.517.318.619.317.017.617.916.117.115.617.016.917.217.616.415.415.71.42.02.71.21.10.72.21.50.81.51.71.72.22.12.01.42.21.9ProprietaryOpen sourceDon't know