Geforce GTX 680 vs Radeon HD 5670

Intro

Compare those specs to the Radeon HD 5670, which comes with core clock speeds of 775 MHz on the GPU, and 1000 MHz on the 1024 MB of GDDR5 RAM. It features 400(80x5) SPUs as well as 20 TAUs and 8 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5670		61 Watts
Geforce GTX 680		195 Watts
	Difference: 134 Watts (220%)

Memory Bandwidth

As far as performance goes, the Geforce GTX 680 should theoretically be a lot better than the Radeon HD 5670 in general. (explain)

Geforce GTX 680		192256 MB/sec
Radeon HD 5670		64000 MB/sec
	Difference: 128256 (200%)

Texel Rate

The Geforce GTX 680 will be a lot (more or less 731%) better at anisotropic filtering than the Radeon HD 5670. (explain)

Geforce GTX 680		128768 Mtexels/sec
Radeon HD 5670		15500 Mtexels/sec
	Difference: 113268 (731%)

Pixel Rate

The Geforce GTX 680 should be much (approximately 419%) faster with regards to AA than the Radeon HD 5670, and also will be able to handle higher screen resolutions while still performing well. (explain)

Geforce GTX 680		32192 Mpixels/sec
Radeon HD 5670		6200 Mpixels/sec
	Difference: 25992 (419%)

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 (counted in megabytes per second) that can be moved over the external memory interface in one second. It is calculated by multiplying the interface width by the speed of its memory. In the case of DDR type RAM, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied in one second. This number is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The higher 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 number of pixels that the graphics card can possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka 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 memory bandwidth is, the lower the potential to reach the maximum fill rate.