GeForce GTX 560 Ti vs Radeon HD 6790

Intro

The GeForce GTX 560 Ti comes with a clock frequency of 822 MHz and a GDDR5 memory speed of 1002 MHz. It also uses a 256-bit memory bus, and makes use of a 40 nm design. It is made up of 384 SPUs, 64 TAUs, and 32 Raster Operation Units.

Compare those specifications to the Radeon HD 6790, which makes use of a 40 nm design. ATi has clocked the core frequency at 840 MHz. The GDDR5 RAM works at a speed of 1050 MHz on this specific model. It features 800 SPUs as well as 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.

GeForce GTX 560 Ti Amazon.com Other US-based stores Amazon.co.uk Amazon.de Amazon.fr

Radeon HD 6790 Amazon.com Other US-based stores Amazon.co.uk Amazon.de Amazon.fr

Specifications

Model	GeForce GTX 560 Ti	Radeon HD 6790
Manufacturer	nVidia	ATi
Year	January 2011	April 2011
Code Name	GF114	Barts LE
Fab Process	40 nm	40 nm
Bus	PCIe x16	PCIe 2.1 x16
Memory	1024 MB	1024 MB
Core Speed	822 MHz	840 MHz
Shader Speed	1645 MHz	(N/A) MHz
Memory Speed	1002 MHz	1050 MHz
Unified Shaders	384	800
Texture Mapping Units	64	40
Render Output Units	32	16
Bus Type	GDDR5	GDDR5
Bus Width	256-bit	256-bit
DirectX Version	DirectX 11	DirectX 11
OpenGL Version	OpenGL 4.1	OpenGL 4.1
Power (Max TDP)	170 watts	150 watts
Shader Model	5.0	5.0
Bandwidth	128256 MB/sec	134400 MB/sec
Texel Rate	52608 Mtexels/sec	33600 Mtexels/sec
Pixel Rate	26304 Mpixels/sec	13440 Mpixels/sec

Memory Bandwidth: Bandwidth is the maximum amount of information (in units of MB per second) that can be transported over the external memory interface in a second. The number is calculated by multiplying the bus width by the speed of its memory. In the case of DDR memory, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the 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 are processed in one second. This figure is calculated by multiplying the total texture units by the core speed of the chip. The better the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.