Memory performance on HP Z840/Z640/Z440 Workstation

Figure 8. HP Z840 Media and Entertainment
SPECapc Maya 2012 SPECwpc
GFX CPU Blender HandBrake
Relative performance
1.10
1.00
0.90
0.80
0.70
0.60
0.50
0.40
0.30
Figure 7. HP Z840 Product Development
AutoCAD 2014 SPECapc Solidworks SPECapc NX8.5 SPECwpc
Total index CPU
composite
CPU
composite
Graphics
composite
Graphics
composite
WPCcdf
Relative performance
1.10
1.00
0.90
0.80
0.70
0.60
0.50
0.40
0.30
8 x 4 GB DIMMs
(32 GB - 4 ch loaded/CPU)
4 x 8 GB DIMMs
(32 GB - 2 ch loaded/CPU)
4 x 4 GB DIMMs
(16 GB - 2 ch loaded/CPU)
2 x 8 GB DIMMs
(16 GB - 1 ch loaded/CPU)
Comparison 2Comparison 1
8 x 4 GB DIMMs
(32 GB - 4 ch loaded/CPU)
4 x 8 GB DIMMs
(32 GB - 2 ch loaded/CPU)
4 x 4 GB DIMMs
(16 GB - 2 ch loaded/CPU)
2 x 8 GB DIMMs
(16 GB - 1 ch loaded/CPU)
Comparison 2Comparison 1
0.49
0.78
1.00
Technical white paper | Memory performance on HP Z840/Z640/Z440 Workstations
6
HP Z840 comparison results
The Comparison 1 results in gures 7, 8, and 9 below are for 32 GB congurations with 4 channels versus 2 channels
loaded per processor. The Comparison 2 results below are for 16 GB congurations with 2 channels versus 1 channel
loaded per processor. Results are normalized to the 32 GB, 4 channels loaded per processor conguration. This is done to
highlight the performance impact due to channel loading.
Again, in the below comparisons, result variation from 2-3% is considered run-to-run variation and is not considered a
true performance variation.
0.95