GeForce GTX 570 vs Radeon HD 5830

Intro

Compare those specifications to the Radeon HD 5830, which has core speeds of 800 MHz on the GPU, and 1000 MHz on the 1024 MB of GDDR5 memory. It features 1120(224x5) SPUs along with 56 Texture Address Units and 16 Rasterization Operator Units.

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

In theory, the GeForce GTX 570 will be 19% faster than the Radeon HD 5830 in general, due to its higher data rate. (explain)

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

Texel Rate

The Radeon HD 5830 should be a small bit (approximately 2%) better at AF 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 is quite a bit (more or less 129%) better at FSAA than the Radeon HD 5830, and also will be capable of handling higher screen resolutions better. (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 largest amount of data (in units of megabytes per second) that can be transported past the external memory interface in one second. It is calculated by multiplying the card's bus width by its memory speed. In the case of DDR type RAM, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly record to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.