GeForce GTX 560 Ti vs Radeon HD 4550 256MB

Intro

Compare that to the Radeon HD 4550 256MB, which features a GPU core clock speed of 600 MHz, and 256 MB of DDR3 RAM running at 800 MHz through a 64-bit bus. It also features 80(16x5) SPUs, 8 TAUs, and 4 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4550 256MB		25 Watts
GeForce GTX 560 Ti		170 Watts
	Difference: 145 Watts (580%)

Memory Bandwidth

In theory, the GeForce GTX 560 Ti is 902% quicker than the Radeon HD 4550 256MB in general, because of its greater bandwidth. (explain)

GeForce GTX 560 Ti		128256 MB/sec
Radeon HD 4550 256MB		12800 MB/sec
	Difference: 115456 (902%)

Texel Rate

The GeForce GTX 560 Ti is a lot (approximately 996%) better at anisotropic filtering than the Radeon HD 4550 256MB. (explain)

GeForce GTX 560 Ti		52608 Mtexels/sec
Radeon HD 4550 256MB		4800 Mtexels/sec
	Difference: 47808 (996%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce GTX 560 Ti is superior to the Radeon HD 4550 256MB, by far. (explain)

GeForce GTX 560 Ti		26304 Mpixels/sec
Radeon HD 4550 256MB		2400 Mpixels/sec
	Difference: 23904 (996%)

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 data (measured in MB per second) that can be transferred over the external memory interface in a second. The number is calculated by multiplying the card's bus width by its memory speed. If it uses DDR type memory, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied per second. This number is calculated by multiplying the total texture units of the card by the core speed of the chip. The better the texel rate, the better the graphics card will be at handling 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 video card could possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.