Tom's Hardware, has shared some images of the upcoming HD 4670 which, is powered by AMD's 55nm RV730XT GPU.
An article from GPU Cafe, suggests that the HD 4670 will be available in 512 MB and 1 GB GDDR3 flavours, offering 750 MHz and 1000MHz speeds for the GPU and memory, respectively.
The HD 4650, will be offered with 512 MB of either GDDR2 or, GDDR3 memory and, will be fuelled for speeds of 600 MHz for the core and, 667 MHz for the memory.
It is claimed by the first source, however, that the 1 GB HD 4670 part will receive memory speeds of 873 MHz followed by the GDDR2 HD 4650 parts, being graced with memory speeds of 500 MHz.
It is presumed that the HD 4650 will target NVIDIA's GeForce 9500GT offering whilst, its HD 4670 sibling, will aim that little bit higher.
With a TDP of 70W on the HD 4670 part and, 55W on the HD 4650 part, it is expected that the HD 4670 will launch on September 10th, followed a fortnight later, by its younger sibling.
AMD's next offering looks perfectly suited to the HTPC crowd and with AMD AIBs now freely expressing their creativity, it may not be long till we see some passive cooling solutions to put the icing on the cake.