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相隔2个多月之后,285.62驱动完全恢复正常!
实际上285.27就已经修正,非常感谢Maxim Milakov!
I have just tested with 285.27 at Win7 x64, 560Ti. The bug is fixed in this driver's version. The overall program performance is reduced by 3%-4% but at this time there are no distinct places (kernels) with huge performance degradation. So I am keeping 285.27, -3%-4% is not a problem for me.