Recently Diamond Multimedia again published in their own pages the description of three video card based on RV670 chip. While Radeon HD 3850 will be presented in two version, with 256 and 512 MB memory GDDR-3 , Diamond issued a description of only one. They published also the description of Radeon HD 3870 with 512 MB GDDR-4 memory .
Here is the video boxes thumbnail .
Immediately we note that those card are slightly different from the expected. For example, HD 3870 has 775 MHz core frequency instead of the planned 825 MHz. GDDR-4 memory Frequency is equal to 2400 MHz DDR.
The Radeon HD 3850 has two version with 256 or 512 MB GDDR-3 memory and 668/1656 MHz frequency , although earlier we had seen frequencies 750/1800 MHz. Note that in both cases, the video is called Radeon HD 3850 .
We could not say that the published specifications of Radeon HD 3870 and Radeon HD 3850 are final, to the announcement remain two weeks and AMD has the tradition to change the frequency at the last minute.
To work with graphics card based on chip RV670 , manufacturer recommends the use of power unit no less than 450 W, CrossFire (two video) will require up to 650 MW power.
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