GEFORCE GTX TITAN X FP64 MAC OS
GEFORCE GTX TITAN X FP64 DRIVERS
GEFORCE GTX TITAN X FP64 UPDATE
GEFORCE GTX TITAN X FP64 DRIVER

I’m not paid by AMD nor by NVIDIA (that would be cool but it’s not the case). FP64 can be enabled in NVIDIA control panel. MAIN REASON: full speed FP64 is disabled by default on GTX Titan. something limits the fp64 performance inside the GeForce driver….GTX Titan FP64 performance is not 1/3 FP32.The Julia fractal used in GpuTest is based on this article. there is something wrong in the GLSL code of the Julia fractal that slows down GeForce GPUs.

GEFORCE GTX TITAN X FP64 DRIVER

the GeForce driver (the OpenGL part) is not optimized for this particular use case.Possible causes of this sluggishness in FP64: In full HD 1920×1080 resolution, the ratio stays the same (FP64 = 1/11 FP32 for the GTX Titan, see HERE and HERE). Same thing for the GTX 750 Ti (Maxwell) and for the GTX 680. If we look at this GFLOPS comparative table, the ratio between FP32 and FP64 is more or less ok for the Radeon HD 7970 (around 1/3 FP32 while the official/marketing ratio is FP64 = 1/4 FP32) but is meaningless for the GTX Titan: the official ratio is FP64 = 1/3 FP32 while in this test, the ratio is rather FP64 = 1/11 FP32. And the gap is much more important in FP64 where the HD 7970 is 6X faster than the GTX Titan.

GEFORCE GTX TITAN X FP64 DRIVERS

With current graphics drivers (Catalyst 14.2 beta for AMD Radeon and R319/R334 for NVIDIA), AMD Radeon GPUs are faster than NVIDIA GPUs: in FP32, the Radeon HD 7970 is +27% faster than the GeForce GTX Titan. GpuTest 0.7.0, Julia FP64 OpenGL 4.0 test – GeForce GTX Titan That allows some comparisons like the famous ratio between FP32 and FP64 we can read in many reviews(fp64 = 1/xx fp32)… The Julia fractal is also available with FP32 (single precision floating point) numbers. The Julia FP64 test requires an OpenGL 4 capable GPU and the support of the GL_ARB_gpu_shader_fp64 extension.

GEFORCE GTX TITAN X FP64 MAC OS

In the freshly released GpuTest 0.7.0 (for Windows, Linux and Mac OS X), we can find a Julia fractal rendered in GLSL using double precision floating point (or FP64) numbers. But when the FP64 is ON, FP32 performance drops by around 15%. When FP64 is enabled, the Julia FP64 score is this time correct and is around 1/3 FP32 (FP32 when FP64 is OFF). Note that turning on this setting reduces performance for all non-CUDA programs, including games But full speed FP64 support comes with a price: FP32 performance is impacted as it’s described in the NVCPL:

UPDATE (2014.03.06): there is an option in the NVIDIA control panel to enable or disable full speed FP64 support for the GeForce GTX Titan.

GEFORCE GTX TITAN X FP64 UPDATE

UPDATE (2014.04.15): The scores of the AMD FirePro W9100 are available HERE.

Geforce gtx titan x fp64