© 2008 Cisco Systems, Inc. All rights reserved.
Cisco Public
C97-404-735-00
10
Observation
Financial Saving
Power per switch
212 W
Power in a 3-switch rack
636 W
Heat dissipated in BTU
(1 W = 3.41 BTU)
2168.76 BTU
Power consumed in cooling
1 BTU
0.105 W
Power consumed for cooling
227.71 W
Total power consumed by
switch
863.71 W
Cost per Kwh
10 cents
Cost per day
$2.07
Cost per year
$ 755.98
HP Procurve 3500yl
Comparative study
Power per switch
143 W
Power in a 3-switch rack
429 W
Heat dissipated in BTU
(1 W = 3.41 BTU)
1462.89 BTU
Power consumed in cooling
1 BTU
0.105 W
Power consumed for cooling
153.60 W
Total power consumed by
switch
582.60 W
Cost per Kwh
10 cents
Cost per day
$1.39
Cost per year
$ 510.36
Cisco
®
3750-E
$245.62 is saved per 3-switch rack by a Cisco switch when compared to a HP switch
Over a 5-year period: $1228.10
1000 racks: $1,228,100.00
