
Compare apples to apples, Top500 figures are always in double precision.
Titan X is only ~11Tflops at FP32. FP64 is 1/32 speed at 0.34Tflops.
2x Titan X is only 0.68Tflops.
Tianhe 2 at 33,862.7Tflops.
33,862.7 / 0.68 = 49,798 times difference.
Compare apples to apples, Top500 figures are always in double precision.
Titan X is only ~11Tflops at FP32. FP64 is 1/32 speed at 0.34Tflops.
2x Titan X is only 0.68Tflops.
Tianhe 2 at 33,862.7Tflops.
33,862.7 / 0.68 = 49,798 times difference.

