GeForce GTX 480 vs Radeon HD 5670

Intro

Compare all that to the Radeon HD 5670, which features a GPU core clock speed of 775 MHz, and 1024 MB of GDDR5 memory running at 1000 MHz through a 128-bit bus. It also features 400(80x5) Stream Processors, 20 Texture Address Units, and 8 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5670		61 Watts
GeForce GTX 480		250 Watts
	Difference: 189 Watts (310%)

Memory Bandwidth

In theory, the GeForce GTX 480 should be 177% quicker than the Radeon HD 5670 in general, due to its greater bandwidth. (explain)

GeForce GTX 480		177408 MB/sec
Radeon HD 5670		64000 MB/sec
	Difference: 113408 (177%)

Texel Rate

The GeForce GTX 480 should be quite a bit (more or less 171%) better at texture filtering than the Radeon HD 5670. (explain)

GeForce GTX 480		42000 Mtexels/sec
Radeon HD 5670		15500 Mtexels/sec
	Difference: 26500 (171%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce GTX 480 is superior to the Radeon HD 5670, and very much so. (explain)

GeForce GTX 480		33600 Mpixels/sec
Radeon HD 5670		6200 Mpixels/sec
	Difference: 27400 (442%)

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 maximum amount of information (measured in MB per second) that can be transported over the external memory interface in a second. It is calculated by multiplying the bus width by its memory speed. In the case of DDR type memory, the result should be multiplied by 2 again. If 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 per second. This is worked out by multiplying the total amount 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 per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Raster Operations Pipelines by the the card's clock speed. 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 is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.