GeForce GTX 560 Ti vs Radeon HD 4850 X2 512MB

Intro

The GeForce GTX 560 Ti has a GPU core clock speed of 822 MHz, and the 1024 MB of GDDR5 RAM runs at 1002 MHz through a 256-bit bus. It also features 384 Stream Processors, 64 Texture Address Units, and 32 ROPs.

Compare those specs to the Radeon HD 4850 X2 512MB, which features core clock speeds of 625 MHz on the GPU, and 993 MHz on the 512 MB of GDDR3 RAM. It features 800(160x5) SPUs as well as 40 Texture Address Units 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 4850 X2 512MB Amazon.com Other US-based stores Amazon.co.uk Amazon.de Amazon.fr

Specifications

Model	GeForce GTX 560 Ti	Radeon HD 4850 X2 512MB
Manufacturer	nVidia	ATi
Year	January 2011	Nov 7, 2008
Code Name	GF114	R700
Fab Process	40 nm	55 nm
Bus	PCIe x16	PCIe 2.0 x16 (PCIe bridge)
Memory	1024 MB	512 MB (x2)
Core Speed	822 MHz	625 MHz (x2)
Shader Speed	1645 MHz	(N/A) MHz (x2)
Memory Speed	1002 MHz	993 MHz (x2)
Unified Shaders	384	800(160x5) (x2)
Texture Mapping Units	64	40 (x2)
Render Output Units	32	16 (x2)
Bus Type	GDDR5	GDDR3
Bus Width	256-bit	256-bit (x2)
DirectX Version	DirectX 11	DirectX 10.1
OpenGL Version	OpenGL 4.1	OpenGL 3.0
Power (Max TDP)	170 watts	250 watts
Shader Model	5.0	4.1
Bandwidth	128256 MB/sec	127104 MB/sec
Texel Rate	52608 Mtexels/sec	50000 Mtexels/sec
Pixel Rate	26304 Mpixels/sec	20000 Mpixels/sec

Memory Bandwidth: Memory bandwidth is the largest amount of data (measured in MB per second) that can be transported across the external memory interface in a second. It's worked out by multiplying the interface width by its memory speed. If it uses DDR type RAM, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Render Output Units by the the core 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 also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.