Processor: Intel(R) Core i5-8400 CPU @2.8GHz
RAM: 16x2 GB DDR4 3002Mhz
Graphics Card: GTX1080 Ti
OS: Windows 10 Education x64
IDE: Visual Studio 2017 Enterpise
Rendered Result, 4 ~ 64 spp, dof = 1.5, focaldist = 70, 3 seconds
Rendered Result, 4 ~ 64 spp, without depth of field , 1s
Rendered Result, 4 ~ 64 spp, dof = 0.15, 1s
Rendered Result, 4 ~ 64 spp, dof = 15, 1s
z buffer