buddhi1980 / mandelbulber2

Official repository for Mandelbulber v2
GNU General Public License v3.0
908 stars 115 forks source link

double precision opencl #442

Open ghost opened 6 years ago

ghost commented 6 years ago

Greetings,

Let us discuss the amount of effort required to implement opencl with double precision. Professional GPU's (radeon pro, quadro, etc..) and GPGPU's are designed for double precision. I request software support to execute on this type of double precision hardware.

Thanks! coast

buddhi1980 commented 6 years ago

Even the fastest Radeon Pro (Radeon Pro SSG Vega - price about $7000!!!) is still 3 times slower at double precision than my cheap GTX 1050 at single precision.

RADEON™ PRO WX 7100 (cheaper one - about $550) has only 357 GFLOPS.

For comparison: Core i7 4770K ($250)-> 182 GFLOPS

I would wait next year until equipment needed for development will be available for reasonable proce.