GeForce 8800 GTX vs Radeon HD 5570

Intro

Compare those specifications to the Radeon HD 5570, which has a GPU core clock speed of 650 MHz, and 512 MB of DDR3 memory set to run at 900 MHz through a 128-bit bus. It also features 400(80x5) SPUs, 20 TAUs, and 8 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5570		43 Watts
GeForce 8800 GTX		155 Watts
	Difference: 112 Watts (260%)

Memory Bandwidth

Theoretically, the GeForce 8800 GTX should perform much faster than the Radeon HD 5570 overall. (explain)

GeForce 8800 GTX		86400 MB/sec
Radeon HD 5570		28800 MB/sec
	Difference: 57600 (200%)

Texel Rate

The GeForce 8800 GTX is much (more or less 183%) better at anisotropic filtering than the Radeon HD 5570. (explain)

GeForce 8800 GTX		36800 Mtexels/sec
Radeon HD 5570		13000 Mtexels/sec
	Difference: 23800 (183%)

Pixel Rate

If using a high resolution is important to you, then the GeForce 8800 GTX is a better choice, and very much so. (explain)

GeForce 8800 GTX		13800 Mpixels/sec
Radeon HD 5570		5200 Mpixels/sec
	Difference: 8600 (165%)

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 data (in units of megabytes per second) that can be transported across the external memory interface in one second. It is calculated by multiplying the interface width by its memory clock speed. In the case of DDR RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.