GeForce GTX 470 vs Radeon HD 5750 512MB

Intro

Compare those specifications to the Radeon HD 5750 512MB, which has GPU clock speed of 700 MHz, and 512 MB of GDDR5 memory set to run at 1150 MHz through a 128-bit bus. It also features 720(144x5) SPUs, 36 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5750 512MB		86 Watts
GeForce GTX 470		215 Watts
	Difference: 129 Watts (150%)

Memory Bandwidth

In theory, the GeForce GTX 470 should be much faster than the Radeon HD 5750 512MB in general. (explain)

GeForce GTX 470		133920 MB/sec
Radeon HD 5750 512MB		73600 MB/sec
	Difference: 60320 (82%)

Texel Rate

The GeForce GTX 470 will be quite a bit (approximately 35%) faster with regards to texture filtering than the Radeon HD 5750 512MB. (explain)

GeForce GTX 470		33992 Mtexels/sec
Radeon HD 5750 512MB		25200 Mtexels/sec
	Difference: 8792 (35%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce GTX 470 is the winner, and very much so. (explain)

GeForce GTX 470		24280 Mpixels/sec
Radeon HD 5750 512MB		11200 Mpixels/sec
	Difference: 13080 (117%)

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 data (counted in MB per second) that can be transported over the external memory interface in a second. It is worked out by multiplying the card's bus width by its memory clock speed. If the card has DDR type memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher 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 number of texture map elements (texels) that are applied per second. This number is calculated by multiplying the total texture units by the core 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 per second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly write to its local memory per 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 - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.