Table-A) CPU performance: cmsExp vs cmsExpVG, 11.0.r08; all uses SerialOnly RM 
Legend:
cmsExpVG   = cmsExp + Geant4/VecGeom.1.2.0
11.0.r08   = geant4-11-00-ref-08 

Average (CPU Time)/Event: cmsExp  vs cmsExpVG
#----------------------------------------------------------------------------
#  cmsExp              cmsExpVG        100*(cmsExpVG-cmsExp)/cmsExp  sample
#
#  mean      error     mean      error    %diff    error
#----------------------------------------------------------------------------

   217.84    1.79      206.60    1.79     -5.2      1.3        higgs.FTFP_BERT.1400.4
   
#----------------------------------------------------------------------------


Table-B) CPU performance: 11.0.r08 vs 11.0.r07 

Legend:
11.0.r07 = geant4-11-00-ref-07   - built w/VecGeom 1.2.0  (SerialOnly RM in app)
11.0.r08 = geant4-11-00-ref-08   - built w/VecGeom 1.2.0  (SerialOnly RM in app)

Average (CPU Time)/Event:  11.0.r08 vs 11.0.r07 

#----------------------------------------------------------------------------
#  110r07                  110r08           100*(r08-r07)/r07    sample
#
#  mean      error         mean      error       %diff error
#----------------------------------------------------------------------------

  201.6000   1.7393 	  206.6000   1.7899 	   2.5  1.3	 higgs.FTFP_BERT.1400.4 

#----------------------------------------------------------------------------


Table-C) Total Memory : 11.0.r08 vs  11.0.r07 

#-----------------------------------------------------------------------------
# total           memory     100*(r08-r07)/r07 
# 110r07          110r08        %diff           sample
#-----------------------------------------------------------------------------

  11180.7000 	  11061.3000 	-1.1	 higgs.FTFP_BERT.1400.4 

#-----------------------------------------------------------------------------