Radeon HD 5770 vs Radeon HD 6750 1GB

Intro

The Radeon HD 5770 has a clock frequency of 850 MHz and a GDDR5 memory speed of 1200 MHz. It also makes use of a 128-bit bus, and uses a 40 nm design. It features 800(160x5) SPUs, 40 TAUs, and 16 Raster Operation Units.

Compare all that to the Radeon HD 6750 1GB, which comes with GPU core speed of 725 MHz, and 1024 MB of GDDR5 RAM set to run at 1000 MHz through a 128-bit bus. It also features 720 Stream Processors, 36 Texture Address Units, 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 5770 Amazon.com Other US-based stores Amazon.co.uk Amazon.de Amazon.fr

Radeon HD 6750 1GB Amazon.com Other US-based stores Amazon.co.uk Amazon.de Amazon.fr

Specifications

Model	Radeon HD 5770	Radeon HD 6750 1GB
Manufacturer	ATi	ATi
Year	October 13, 2009	January 2011
Code Name	Juniper XT	Juniper Pro
Fab Process	40 nm	40 nm
Bus	PCIe 2.1 x16	PCIe x16
Memory	1024 MB	1024 MB
Core Speed	850 MHz	725 MHz
Shader Speed	N/A MHz	(N/A) MHz
Memory Speed	1200 MHz	1000 MHz
Unified Shaders	800(160x5)	720
Texture Mapping Units	40	36
Render Output Units	16	16
Bus Type	GDDR5	GDDR5
Bus Width	128-bit	128-bit
DirectX Version	DirectX 11	DirectX 11
OpenGL Version	OpenGL 3.2	OpenGL 4.1
Power (Max TDP)	108 watts	86 watts
Shader Model	5.0	5.0
Bandwidth	76800 MB/sec	64000 MB/sec
Texel Rate	34000 Mtexels/sec	26100 Mtexels/sec
Pixel Rate	13600 Mpixels/sec	11600 Mpixels/sec

Memory Bandwidth: Memory bandwidth is the largest amount of information (measured in megabytes per second) that can be transferred across the external memory interface in one second. It is calculated by multiplying the interface width by its memory clock speed. In the case of DDR type RAM, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed in one second. This figure is worked out by multiplying the total texture units by the core clock speed of the chip. The higher the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the most pixels the video card can possibly record to the local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.