GeForce GTX 560 vs Radeon HD 5830

Intro

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

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 560		150 Watts
Radeon HD 5830		175 Watts
	Difference: 25 Watts (17%)

Memory Bandwidth

In theory, the GeForce GTX 560 will be 0% quicker than the Radeon HD 5830 overall, because of its greater data rate. (explain)

GeForce GTX 560		128128 MB/sec
Radeon HD 5830		128000 MB/sec
	Difference: 128 (0%)

Texel Rate

The GeForce GTX 560 is a small bit (approximately 1%) better at texture filtering than the Radeon HD 5830. (explain)

GeForce GTX 560		45360 Mtexels/sec
Radeon HD 5830		44800 Mtexels/sec
	Difference: 560 (1%)

Pixel Rate

The GeForce GTX 560 will be much (more or less 103%) better at FSAA than the Radeon HD 5830, and also will be able to handle higher screen resolutions more effectively. (explain)

GeForce GTX 560		25920 Mpixels/sec
Radeon HD 5830		12800 Mpixels/sec
	Difference: 13120 (103%)

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 (measured in megabytes per second) that can be moved over the external memory interface in one second. It's worked out by multiplying the bus width by its memory speed. In the case of DDR type RAM, it must be multiplied by 2 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, HDR 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 amount of texture units of the card by the core clock speed of the chip. The better the texel rate, the better the video card will be at 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 video card could possibly write to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.