Fokissed
Distinguished
[citation][nom]dragonsqrrl[/nom]Many people were praising the Mobility Radeon HD5870 for its relatively low power consumption, especially in comparison to the spec sheet for the GTX480M, which described Nvidia's latest high end mobile part as having a TDP of 100W. In fact according to the spec sheets the Mobility HD5870 uses significantly less power then even the GTX285M at full load, 50W in comparison to 75W. However, it quickly became apparent that something wasn't adding up.http://www.tomshardware.com/review [...] 15-11.htmlWhat many of the people who were bashing the TDP's of the GTX285M and GTX480M didn't understand was that ATI and Nvidia calculate TDP differently. ATI only figures in the power draw of the GPU itself, while Nvidia measures the entire board including memory. So direct comparisons based solely on the numbers provided by the spec sheets won't accurately represent real-world differences in power consumption. In many cases the actual power draw of these mobile parts is much closer then the official spec sheets would have you believe.[/citation]
Yet the 480m notebook still uses 50w more under load than the 5870m.
Yet the 480m notebook still uses 50w more under load than the 5870m.