GeForce GTX 470 vs Radeon HD 5570

Intro

Compare those specifications to the Radeon HD 5570, which has core clock speeds of 650 MHz on the GPU, and 900 MHz on the 512 MB of DDR3 RAM. It features 400(80x5) SPUs along with 20 Texture Address Units and 8 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5570		43 Watts
GeForce GTX 470		215 Watts
	Difference: 172 Watts (400%)

Memory Bandwidth

The GeForce GTX 470 should in theory be quite a bit faster than the Radeon HD 5570 in general. (explain)

GeForce GTX 470		133920 MB/sec
Radeon HD 5570		28800 MB/sec
	Difference: 105120 (365%)

Texel Rate

The GeForce GTX 470 will be a lot (more or less 161%) faster with regards to anisotropic filtering than the Radeon HD 5570. (explain)

GeForce GTX 470		33992 Mtexels/sec
Radeon HD 5570		13000 Mtexels/sec
	Difference: 20992 (161%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce GTX 470 is superior to the Radeon HD 5570, by far. (explain)

GeForce GTX 470		24280 Mpixels/sec
Radeon HD 5570		5200 Mpixels/sec
	Difference: 19080 (367%)

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 maximum amount of information (counted in MB per second) that can be moved over the external memory interface in one second. It's worked out by multiplying the card's interface width by the speed of its memory. In the case of DDR RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed in one second. This is worked out by multiplying the total amount of texture units by the core speed of the chip. The higher this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly write to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of colour 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 rate also depends on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.