Associate used thermograph to measure the heating of different video card sections.
Radeon HD 4850:
Radeon HD 4870:
Radeon HD 4870 X2:
As it is evident, all three cards have a very hot section, with the temperature of approximately 100 degrees Celsius . In the Radeon HD 4850 the power-supply system heats up strongly, and also the region of graphic processor and video memory. The cooling system does not eject hot air outside. In the Radeon HD 4870 most power-supply system region heat up, while the graphic processor zones are colder. However, the GDDR5 memory is completely cool. For the Radeon HD 4870 X2 practically the whole card heats up and the temperature reach more than 100 degrees according to Celsius.
Thus, all three cards strongly heat up, and this justifies the red Textolite color .
Now let us pass to Nvidia card .
GeForce 9800 GTX+:
GeForce GTX 260:
GeForce GTX 285:
GeForce GTX 295:
The results Of the GeForce 9800 GTX+ are very different to RV770. The GeForce GTX 260 continues the cold traditions, with heat only in the center : the region of graphic processor positioning. Note here we deal with old version GeForce GTX 260, with the graphic processor GT200, made on 65 NM technological process. The GeForce GTX 285. However, already demonstrates two basic heat centers : graphic processor and the power-supply system, which has the peak temperature of 95 degrees Celsius. The two-chip GeForce GTX 295 practically heat up to 90 degrees Celsius which are up o 10 degrees less than in Radeon HD 4870 X2.
The cooling systems of GeForce card manage better their task, and NVIDIA video card have lower operating temperature. Related Products :
|