GeForce GTX 560 Ti 448 vs Radeon HD 5830

Intro

Compare all that to the Radeon HD 5830, which comes with clock 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 TAUs and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5830		175 Watts
GeForce GTX 560 Ti 448		210 Watts
	Difference: 35 Watts (20%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 560 Ti 448 should be a little bit faster than the Radeon HD 5830 in general. (explain)

GeForce GTX 560 Ti 448		144000 MB/sec
Radeon HD 5830		128000 MB/sec
	Difference: 16000 (13%)

Texel Rate

The Radeon HD 5830 should be a bit (about 9%) more effective at anisotropic filtering than the GeForce GTX 560 Ti 448. (explain)

Radeon HD 5830		44800 Mtexels/sec
GeForce GTX 560 Ti 448		40992 Mtexels/sec
	Difference: 3808 (9%)

Pixel Rate

The GeForce GTX 560 Ti 448 is quite a bit (about 129%) better at FSAA than the Radeon HD 5830, and capable of handling higher screen resolutions more effectively. (explain)

GeForce GTX 560 Ti 448		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 (in units of megabytes per second) that can be transferred across the external memory interface in one second. It is calculated by multiplying the card's interface width by the speed of its memory. In the case of DDR RAM, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed in one 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 higher this number, 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 maximum amount of pixels the graphics card can possibly record to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). 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 ability to get to the max fill rate.