Slow Xeon (HP Z840) Processing

Hi, I have a new HP Z840 (dual Xeon E5-2650, 24gb RAM, NO SSD, Quadro K2200) that seems very slow.  

Compared to a ~10 year old HP Z800 (dual Xeon 5690, 64gb RAM, SSD, GTX980) and an old i7 (32gg SSD, GTX960) it takes more than twice as long to process the Pix4d sample agriculture database (17+ hours vs 8 for both the Z800 and i7 machine).

All machines are Windows 7.

Are the RAM and SSD differences the cause??

I know others have had Xeon issues/challenges.  

Anyone have some tips?





Hi Kim, 

This might be related to the settings of the Quadro K2200, which can make the processing time of step 3. DSM, Orthomosaic and Index longer than usual.

We would do the two following steps: 

A. Make sure that the latest driver is installed. Download the latest driver from here:

B. Change the options selected for the graphics processor:

  1. In the Nvidia Control Panel, select Manage 3D Settings.
  2. In Base Profile, select 3D App Game Development.
  3. Process step 3. DSM and Orthomosaic again.

The above solutions are taken from the following article:

Hope this solves the issue. 


The Xeon E5-2650 are 8 cores at 2.0ghz while the Xeon 5690 are 6 cores but at 3.46 which make a big difference in speed vs the E5-2650. You should be able to see roughly 20% difference with using the Xeon 5690.

The K2200 is in inferior card compared to the GTX 980 and 960. Cuda cores alone ( which Pix4d prefers more) the GTX980 has 2048 a the GTX 960 has 1024. While the K2200 has 640. This also makes a big difference since you are at almost double the power just using the GTX 960.

SSDs will make the entire process faster.

Ram amount is fine in all systems unless you are ruining very large data sets.


The above reasoning is taken from daily use of Pix4D and trail and error.

Thanks everyone, I made the changes PiX4d support mentioned (change video card to 3D game development) and my time dropped by more than half (17 hours to 7).  

When i have some time I may swap the K2200 card for the 980 and see what happens.