GeForce GTX 560 Ti vs Radeon HD 5850

Intro

Compare those specs to the Radeon HD 5850, which features clock speeds of 725 MHz on the GPU, and 1000 MHz on the 1024 MB of GDDR5 RAM. It features 1440(288x5) SPUs as well as 72 Texture Address Units and 32 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5850		151 Watts
GeForce GTX 560 Ti		170 Watts
	Difference: 19 Watts (13%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 560 Ti should be just a bit faster than the Radeon HD 5850 overall. (explain)

GeForce GTX 560 Ti		128256 MB/sec
Radeon HD 5850		128000 MB/sec
	Difference: 256 (0%)

Texel Rate

The GeForce GTX 560 Ti is a little bit (more or less 1%) faster with regards to anisotropic filtering than the Radeon HD 5850. (explain)

GeForce GTX 560 Ti		52608 Mtexels/sec
Radeon HD 5850		52200 Mtexels/sec
	Difference: 408 (1%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce GTX 560 Ti is the winner, but it probably won't make a huge difference. (explain)

GeForce GTX 560 Ti		26304 Mpixels/sec
Radeon HD 5850		23200 Mpixels/sec
	Difference: 3104 (13%)

Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.

Price Comparison

Specifications

Memory Bandwidth: Memory bandwidth is the max amount of information (counted in MB per second) that can be transported across 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 RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. 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 texture map elements (texels) that are processed in one second. This is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The higher this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly write to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.