Intel Core 2 Chipset Power Consumption Shootout
by Anand Lal Shimpi on October 12, 2006 12:53 PM EST- Posted in
- CPUs
Application Performance & Power Usage with SYSMark 2004
We start out with SYSMark 2004's Internet Content Creation suite, and from a performance standpoint all three chipsets perform within the margin of error for this benchmark:
Power consumption however is a far more interesting graph than performance, as there is a clear difference between the three chipsets. Intel's P965 comes out on top (in a good way), with the system drawing an average of 127.1W, followed by the 975X with a 2.5% increase in power usage and finally NVIDIA's nForce 570 SLI at 138.1W. While the difference between the P965 and 975X isn't too great, NVIDIA's nForce 570 SLI draws an average of 11W more than the P965, or 8.6%.
Given that all three platforms perform the same, the performance per watt graph isn't very alarming - the lowest power consumer gets the best performance per watt.
The Office Productivity suite in SYSMark 2004 has the nForce 570 SLI slightly underperforming, with the P965 weighing in about 4.5% faster, but still nothing significant.
Once again, it's the power consumption charts that are the most interesting; with a lighter CPU load, the power consumption of the platform manages to stand out more and here the nForce 570 SLI uses 11% more power than the Intel P965.
Performance being virtually equal, the performance per watt graph tells us exactly what we expected to see:
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jonp - Saturday, October 14, 2006 - link
Whoops. Intuitive logic doesn't always pay off. See the following chart which gives energy costs/BTU for 2006: http://www.npga.org/i4a/pages/index.cfm?pageid=914">DOE Energy Costs . You can see that energy cost from electricity is almost double that of natural gas. You may help heat the building, but it will cost you more. And remember that a lot of electricity comes from coal fired power plants (CO2 producing) and every wire consumes it's own share of energy released as useless heat. Ok probably too much off the chipset topic, sorry.DigitalFreak - Thursday, October 12, 2006 - link
Quick, call Al Gore!Thanks for the good laugh.
Lonyo - Thursday, October 12, 2006 - link
10w is not all that inconsiderable, look at it over multiple components and it becomes significant.10w just for the mobo is, IMO, quite a chunk.
smn198 - Friday, October 13, 2006 - link
Could you measure the power draw of just the chipset by increasing the voltage of the northbridge by 0.2V and then re-running the tests? Take the difference between +0.2V and normal and then you would have isolated the power draw for the chipset and can work out the power draw for the chipset alone.