GeForce GTX 570 vs Radeon HD 5830

Intro

Compare those specs to the Radeon HD 5830, which features GPU clock speed of 800 MHz, and 1024 MB of GDDR5 RAM running at 1000 MHz through a 256-bit bus. It also features 1120(224x5) Stream Processors, 56 Texture Address Units, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5830		175 Watts
GeForce GTX 570		219 Watts
	Difference: 44 Watts (25%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 570 should theoretically be a little bit superior to the Radeon HD 5830 overall. (explain)

GeForce GTX 570		152000 MB/sec
Radeon HD 5830		128000 MB/sec
	Difference: 24000 (19%)

Texel Rate

The Radeon HD 5830 is a bit (more or less 2%) better at anisotropic filtering than the GeForce GTX 570. (explain)

Radeon HD 5830		44800 Mtexels/sec
GeForce GTX 570		43920 Mtexels/sec
	Difference: 880 (2%)

Pixel Rate

The GeForce GTX 570 should be a lot (about 129%) more effective at anti-aliasing than the Radeon HD 5830, and also capable of handling higher screen resolutions more effectively. (explain)

GeForce GTX 570		29280 Mpixels/sec
Radeon HD 5830		12800 Mpixels/sec
	Difference: 16480 (129%)

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 (measured in MB per second) that can be transported past the external memory interface in a second. The number is worked out by multiplying the bus width by its memory clock speed. If it uses DDR type memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

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

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