GeForce GTX 550 Ti vs Radeon HD 5750 512MB

Intro

Compare those specifications to the Radeon HD 5750 512MB, which comes with GPU core speed of 700 MHz, and 512 MB of GDDR5 memory set to run at 1150 MHz through a 128-bit bus. It also is made up of 720(144x5) Stream Processors, 36 Texture Address Units, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5750 512MB		86 Watts
GeForce GTX 550 Ti		116 Watts
	Difference: 30 Watts (35%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 550 Ti is 34% quicker than the Radeon HD 5750 512MB in general, due to its greater bandwidth. (explain)

GeForce GTX 550 Ti		98496 MB/sec
Radeon HD 5750 512MB		73600 MB/sec
	Difference: 24896 (34%)

Texel Rate

The GeForce GTX 550 Ti will be just a bit (about 14%) more effective at anisotropic filtering than the Radeon HD 5750 512MB. (explain)

GeForce GTX 550 Ti		28800 Mtexels/sec
Radeon HD 5750 512MB		25200 Mtexels/sec
	Difference: 3600 (14%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce GTX 550 Ti is the winner, and very much so. (explain)

GeForce GTX 550 Ti		21600 Mpixels/sec
Radeon HD 5750 512MB		11200 Mpixels/sec
	Difference: 10400 (93%)

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: Bandwidth is the max amount of information (in units of megabytes per second) that can be moved past the external memory interface in one second. It is calculated by multiplying the bus width by the speed of its memory. If it uses 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, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly write to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.