HD3650 Graphic card like Reference Design. HD3650 Core is RV635, 55nm ver. It supports DX10 and get 120 Stream Processors.Radeon HD 3650:
Another one is HD3690. According to Chiphell, it is a Triplex products. This HD3690 PCB is non reference Design, it is much shorter. Moreover, HD3690 Core is equal to RV670! Different between HD38x0 and HD3690 are Memory Bandwidth. HD38x0 work with 256bit Ram, however, HD3690 will work with 128BIt ram only. How did the performance on HD3690? Chiphell didn't mention or show benchmark on it.
Finally, chiphell reports that Triplex HD3690 maybe cost RMB799~(USD 105)!
Radeon HD 3690: