Radeon HD 6750 vs Radeon HD 6770

Intro

The Radeon HD 6750 features a GPU core clock speed of 725 MHz, and the 512 MB of GDDR5 RAM runs at 1000 MHz through a 128-bit bus. It also features 720 Stream Processors, 36 TAUs, and 16 Raster Operation Units.

Compare all that to the Radeon HD 6770, which features a core clock frequency of 900 MHz and a GDDR5 memory frequency of 1050 MHz. It also makes use of a 128-bit memory bus, and uses a 40 nm design. It is comprised of 800 SPUs, 40 TAUs, and 16 Raster Operation Units.

Price Comparison

Please note that the price comparisons are based on search keywords, and might not be the exact same card listed on this page. We have no control over the accuracy of their search results.

Radeon HD 6750 Amazon.com Other US-based stores Amazon.co.uk Amazon.de Amazon.fr

Radeon HD 6770 Amazon.com Other US-based stores Amazon.co.uk Amazon.de Amazon.fr

Specifications

Model	Radeon HD 6750	Radeon HD 6770
Manufacturer	ATi	ATi
Year	January 2011	January 2011
Code Name	Juniper Pro	Juniper XT
Fab Process	40 nm	40 nm
Bus	PCIe x16	PCIe x16
Memory	512 MB	512 MB
Core Speed	725 MHz	900 MHz
Shader Speed	N/A MHz	(N/A) MHz
Memory Speed	1000 MHz	1050 MHz
Unified Shaders	720	800
Texture Mapping Units	36	40
Render Output Units	16	16
Bus Type	GDDR5	GDDR5
Bus Width	128-bit	128-bit
DirectX Version	DirectX 11	DirectX 11
OpenGL Version	OpenGL 4.0	OpenGL 4.1
Power (Max TDP)	86 watts	108 watts
Shader Model	5.0	5.0
Bandwidth	64000 MB/sec	67200 MB/sec
Texel Rate	26100 Mtexels/sec	36000 Mtexels/sec
Pixel Rate	11600 Mpixels/sec	14400 Mpixels/sec

Memory Bandwidth: Memory bandwidth is the maximum amount of information (counted in megabytes per second) that can be transferred past the external memory interface within a second. It's calculated by multiplying the bus width by its memory clock speed. If it uses DDR RAM, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied per second. This is calculated by multiplying the total number of texture units by the core clock speed of the chip. The higher the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly record to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.