
The rumor of 640ALU with 32 rops and narrow 256bit bus will just make it sound stupid if everything double up except rops/bus since the original r600 design is already unbalanced. all they need to do is enhance the ALU performance rather than make cheaper low complex shader but take more space and number to fill up the performance. like when 4830 compete with 4870 it shows 4830 has more efficient than 4870. under the same rops/bus configuration a balance GPU design will out perform a GPU that's steroid with more shader ALU. that means more shader don't mean huge boot in performance.

Wahdangunthen i will betting 256bit bus with high speed GDDR5do you honestly believe a high end card will only feature 32rop and 256bit bus while have ridiculous number of shader? this is no longer r670 to r770 transition that you can add up 2.5x shader to boost performance.
#Radeon hd 6700 full
Both SKUs use the full 256-bit memory bus width. There are 1280 stream processors available to the HD 6770 (Barts XT), and 1120 stream processors to the HD 6750 (Barts Pro). Compared to the "Juniper" die that went into making the Radeon HD 5700 series, Barts features twice the memory bandwidth thanks to its 256-bit wide high-speed memory interface, key components such as the SIMD arrays split into two blocks (like on Cypress), and we're now getting to learn that it uses a more efficient 4-D stream processor design. AMD claims that the HD 6700 series will pack "Twice the Horsepower", over previous generation HD 5700 series.
#Radeon hd 6700 pro
The XT variant denotes Radeon HD 6770, and Pro denotes HD 6750.
#Radeon hd 6700 driver
If your driver isn't working, use the driver having the same OEM with the your laptop/desktop brand name.Here is the slide we've been waiting for, the specs sheet of AMD's next-generation Radeon HD 6700 series GPUs, based on a new, radically redesigned core, codenamed "Barts". If you are looking for an update, pickup the latest one.

With the different devices, they can have the same driver, it's because they all use the same chip manufacturer.
#Radeon hd 6700 drivers
Below is a list of drivers that may be suitable for your device.
