Radeon HD 5750 1GB vs Radeon HD 7770

Intro

The Radeon HD 5750 1GB comes with core clock speeds of 700 MHz on the GPU, and 1150 MHz on the 1024 MB of GDDR5 RAM. It features 720(144x5) SPUs along with 36 Texture Address Units and 16 Rasterization Operator Units.

Compare those specifications to the Radeon HD 7770, which uses a 28 nm design. ATi has set the core frequency at 1000 MHz. The GDDR5 memory runs at a frequency of 1125 MHz on this card. It features 640 SPUs along with 40 TAUs and 16 Rasterization Operator 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 5750 1GB Amazon.com Other US-based stores Amazon.co.uk Amazon.de Amazon.fr

Radeon HD 7770 Amazon.com Other US-based stores Amazon.co.uk Amazon.de Amazon.fr

Specifications

Model	Radeon HD 5750 1GB	Radeon HD 7770
Manufacturer	ATi	ATi
Year	October 13, 2009	February 2012
Code Name	Juniper LE	Cape Verde XT
Fab Process	40 nm	28 nm
Bus	PCIe 2.1 x16	PCIe 3.0 x16
Memory	1024 MB	1024 MB
Core Speed	700 MHz	1000 MHz
Shader Speed	N/A MHz	(N/A) MHz
Memory Speed	1150 MHz	1125 MHz
Unified Shaders	720(144x5)	640
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 11.1
OpenGL Version	OpenGL 3.2	OpenGL 4.2
Power (Max TDP)	86 watts	80 watts
Shader Model	5.0	5.0
Bandwidth	73600 MB/sec	72000 MB/sec
Texel Rate	25200 Mtexels/sec	40000 Mtexels/sec
Pixel Rate	11200 Mpixels/sec	16000 Mpixels/sec

Memory Bandwidth: Memory bandwidth is the largest amount of data (measured in MB per second) that can be moved over the external memory interface in a second. The number is worked out by multiplying the card's bus width by its memory speed. In the case of DDR type memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly write to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.