"In the East you can find a card called Radeon HD 3690. Unlike the other cards of the Radeon HD 3600 series, 3690 is based on the RV670 core, but the memory bus has been cut in half, to 128-bit and it has only 256MB of memory. Other than that they are identical to the regular RV670-based cards. But Radeon HD 3690 is not an official card by AMD and the naming was something partners came up with. Industry sources has now told HKEPC that AMD will launch an identical card next month, but it will instead name it Radeon HD 3830.
The card is suppose to go up against the GeForce 9600GT, which we find a bit amusing as Radeon HD 3850 is several tens of dollars cheaper and 3870 costs pretty much the same, and they both perform quite similar to 9600GT. "