. Author manuscript; available in PMC: 2018 Apr 3.

Published in final edited form as: Phys Med Biol. 2016 Oct 3;61(20):7347–7362. doi: 10.1088/0031-9155/61/20/7347

Table 1.

Simulation time in seconds for cases with different number of dose counters on NVidia and AMD GPUs. For each case 1×10⁷ primary protons in water were simulated.

Beam	Device	Number of dose counters
Beam	Device	1	4	8	16
100 MeV pencil beam	NVidia GeForce GTX TITAN	50.35	8.36	7.73	7.77
100 MeV pencil beam	AMD Radeon R9 290x	23.07	8.27	7.99	10.44
100 MeV 10×10 cm² beam	NVidia GeForce GTX TITAN	5.63	6.32	6.89	7.71
100 MeV 10×10 cm² beam	AMD Radeon R9 290x	4.85	6.44	7.77	10.72
200 MeV pencil beam	NVidia GeForce GTX TITAN	35.51	20.59	20.03	20.39
200 MeV pencil beam	AMD Radeon R9 290x	27.92	16.26	16.57	18.95
200 MeV 10×10 cm² beam	NVidia GeForce GTX TITAN	16.77	19.05	20.21	21.19
200 MeV 10×10 cm² beam	AMD Radeon R9 290x	13.46	15.93	17.41	20.67