Articles: Graphics

Bookmark and Share

Pages: [ 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 ]


The RADEON 9800 XT is a top-end graphics processor of the last generation, made with 0.15-micron tech process out of 110 million transistors. We’ve got a RADEON 9800 XT card from Sapphire:

Curiously enough, RADEON 9800 XT graphics cards have their memory chips cooled – unlike RADEON X800 devices. The base of the face-side cooler covers the core as well as the memory chips, while the chips at the back side of the PCB are under a copper plate:

The nominal frequencies of the card are 412/730MHz; I made it to 470/840MHz at overclocking. The measurements of the power consumption gave the following results:

It is clear that the developers of the X800 discussed power-related problems. The X800 Pro consumes a little less than the RADEON 9800 XT, and the X800 XT Platinum Edition, which is incomparably faster – only 3 Watts more than the 9800 XT and only in the Burn mode!

The transition to the thinner 0.13-micron tech process, the reduced core voltage (X800’s 1.4v against 9800 XT’s 1.7v), the use of a less power-hungry memory and various improved power-saving technologies – these factors all contribute to the excellent result. The difference between the X800 and the RADEON 9800 XT is especially clear in the Idle mode: X800-based graphics cards consume twice less of electricity.

The power consumption of the card grew by 16.3% in the Idle mode and by 12.3% in the Burn mode (the GPU and memory clock rates grew by 14% and 15%, respectively).

Click to enlarge

Interestingly, the RADEON 9800 XT loads the AGP slot more than the new generation of ATI graphics cards: in the Burn mode, the total consumption on the 3.3v, 5v and 12v lines in the AGP slot reaches about 20W, while the X800 consumes 10W at most through the AGP.

Pages: [ 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 ]


Comments currently: 245
Discussion started: 07/28/04 05:25:10 PM
Latest comment: 09/02/16 03:46:19 AM

View comments

Add your Comment