GeForce GTX 470 vs Radeon HD 5670

Intro

Compare those specifications to the Radeon HD 5670, which features GPU core speed of 775 MHz, and 1024 MB of GDDR5 memory set to run at 1000 MHz through a 128-bit bus. It also features 400(80x5) Stream Processors, 20 TAUs, and 8 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5670		61 Watts
GeForce GTX 470		215 Watts
	Difference: 154 Watts (252%)

Memory Bandwidth

The GeForce GTX 470 should in theory perform much faster than the Radeon HD 5670 in general. (explain)

GeForce GTX 470		133920 MB/sec
Radeon HD 5670		64000 MB/sec
	Difference: 69920 (109%)

Texel Rate

The GeForce GTX 470 is quite a bit (more or less 119%) better at anisotropic filtering than the Radeon HD 5670. (explain)

GeForce GTX 470		33992 Mtexels/sec
Radeon HD 5670		15500 Mtexels/sec
	Difference: 18492 (119%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce GTX 470 is the winner, by a large margin. (explain)

GeForce GTX 470		24280 Mpixels/sec
Radeon HD 5670		6200 Mpixels/sec
	Difference: 18080 (292%)

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 (measured in megabytes per second) that can be transported over the external memory interface in a second. It's worked out by multiplying the card's bus width by its memory clock speed. If it uses DDR memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied per second. This figure is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The higher the texel rate, the better the video 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 record to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount of ROPs by the the core clock speed. 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 many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.