Poor performance with GTX660

[DroneBuster]

Hello,

I'm running photoscan on my old machine

Specs:
Intel I5 750 O.C to 3.2GHz
Nvidia GTX660 (as primary card installed it year ago)
Nvidia GTS250
16GB RAM

I ran test on my sample data and got this results (time how long Depth Reconstruction took):
1. No OpenCL devices enabled - 00:04:26 (hh:mm:ss)
2. GTX660 enabled 1 core deactivated - 00:04:20
3. GTX660 enabled 2 cores deactivated - 00:04:00
4. GTS250 enabled 1 core deactivated - 00:03:05 (almost 25% faster than GTX660)
5. GTS250 enabled 2 cores deactivated - 00:03:25
6. GTS250 and GTX660 enabled 1 core deactivated - 00:03:25
7. GTS250 and GTX660 enabled 2 cores deactivated - 00:03:15
8. GTS250 and GTX660 enabled 3 cores deactivated - 00:03:37

When running with GTX660 enabled in GPU-Z I see that core clocks is risen and power consumption increases (from 15% to 30%) but GPU core load stays same.

I imagine that GTX660 should be much better than old GTS250.
Maybe someone could help locate problem why GTX660 computing power is not used?

[Alexey Pasumansky]

Hello DroneBuster,

Can you please post the console pane output related to the depth maps estimation and specify PhotoScan version used?