tomshardware review suggestion

[WINTERLORD]

with all the mining craze and such i thought it would be kool to see an actual wattage performance difference in say how much a gold standered psu would draw/save on power versus a titanium or platinum power supply maybe add a bronze as well.

speaking of wich off hand does anyone know the difference in wattage savings platium or top tier versus mid gold tier?

 

[Barty1884]

I think it's a little simplistic - as YMMV depending on location, cost of electricity etc.

The difference between the two (at a high level Platinum, or even Titanium vs Gold) is pretty easy to establish - solely based on their 80+ efficiency rating.

Assuming operation in the 50% range (for absolute peak efficiency), 24/7 usage (ala mining) and using the average kWh electricity cost in the USA ($0.10 - $0.20)

Bronze
1500W PSU, operating at 750W (50% = 85% efficiency) 24/7.
750W @ 85% efficiency = 882W from the wall

882W x 24 hours per day = 21,168W / 1,000 = 21.168kWh
21.168 x 365 days = 7,726 kWh annually.

7,726 kWh x $0.10/kWh = $772.60 annually
7,726 kWh x $0.20/kWh = $1,545.20 annually

Gold
1500W PSU, operating at 750W (50% = 90% efficiency) 24/7.
750W @ 90% efficiency = 833W from the wall

833W x 24 hours per day = 19,992W / 1,000 = 19.992 kWh
19.992 x 365 days = 7,297 kWh annually.

7,297 kWh x $0.10/kWh = $729.70 annually
7,297 kWh x $0.20/kWh = $1,459.40 annually

Platinum
1500W PSU, operating a 750W (50% = 92% efficiency), 24/7
750W @ 92% effiency = 815W from the wall

815W x 24 hours per day = 19,560W / 1,000 = 19.56 kWh
19.56 x 365 days = 7,139 kWh annually.

7,139 kWh x $0.10/kWh = $713.90 annually
7,139 kWh x $0.20/kWh = $1,427.80 annually


Titanium
1500W PSU, operating a 750W (50% = 95% efficiency), 24/7
750W @ 94% = 798W from the wall

798W x 24 hours per day = 19,152W / 1,000 = 19.152 kWh
19.152 x 365 days = 6,990 kWh annually.

6,990kWh x $0.10/kWh = $699.00 annually
6,990 kWh x $0.20/kWh = $1,398.00 annually


So the difference in consumption from a cost standpoint over the course of a year is somewhere between $73.60 and $144.20 (between Bronze and Titanium)... depending on the cost of your electricity.

 

[WINTERLORD]

oh man, you are alswome thanks for that very good breakdown