GeForce GTX 570 vs Radeon HD 5670

Intro

Compare all that to the Radeon HD 5670, which has core clock speeds of 775 MHz on the GPU, and 1000 MHz on the 1024 MB of GDDR5 memory. It features 400(80x5) SPUs along with 20 Texture Address Units and 8 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5670		61 Watts
GeForce GTX 570		219 Watts
	Difference: 158 Watts (259%)

Memory Bandwidth

In theory, the GeForce GTX 570 should be 138% faster than the Radeon HD 5670 overall, because of its greater bandwidth. (explain)

GeForce GTX 570		152000 MB/sec
Radeon HD 5670		64000 MB/sec
	Difference: 88000 (138%)

Texel Rate

The GeForce GTX 570 will be quite a bit (more or less 183%) better at anisotropic filtering than the Radeon HD 5670. (explain)

GeForce GTX 570		43920 Mtexels/sec
Radeon HD 5670		15500 Mtexels/sec
	Difference: 28420 (183%)

Pixel Rate

If running with a high resolution is important to you, then the GeForce GTX 570 is the winner, by a large margin. (explain)

GeForce GTX 570		29280 Mpixels/sec
Radeon HD 5670		6200 Mpixels/sec
	Difference: 23080 (372%)

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 largest amount of data (counted in MB per second) that can be transferred 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 the card has DDR memory, the result should be multiplied by 2 once again. If 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 amount of texture map elements (texels) that can be applied in one second. This is worked out by multiplying the total number of texture units by the core clock speed of the chip. The higher the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel 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 ability to reach the maximum fill rate.