GeForce GTX 550 Ti vs Radeon HD 5750 1GB

Intro

Compare those specs to the Radeon HD 5750 1GB, which comes with a core clock frequency of 700 MHz and a GDDR5 memory frequency of 1150 MHz. It also makes use of a 128-bit bus, and uses a 40 nm design. It is made up of 720(144x5) SPUs, 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 1GB		86 Watts
GeForce GTX 550 Ti		116 Watts
	Difference: 30 Watts (35%)

Memory Bandwidth

Performance-wise, the GeForce GTX 550 Ti should in theory be a lot better than the Radeon HD 5750 1GB overall. (explain)

GeForce GTX 550 Ti		98496 MB/sec
Radeon HD 5750 1GB		73600 MB/sec
	Difference: 24896 (34%)

Texel Rate

The GeForce GTX 550 Ti will be a little bit (about 14%) faster with regards to anisotropic filtering than the Radeon HD 5750 1GB. (explain)

GeForce GTX 550 Ti		28800 Mtexels/sec
Radeon HD 5750 1GB		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, by a large margin. (explain)

GeForce GTX 550 Ti		21600 Mpixels/sec
Radeon HD 5750 1GB		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 MB per second) that can be transported past the external memory interface within a second. The number is calculated by multiplying the bus width by its memory clock speed. If it uses DDR memory, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed in one second. This number is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The better the texel rate, the better the 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 graphics card could possibly write to its local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the amount of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.