GeForce GTX 460 vs Radeon HD 5830

Intro

Compare those specifications to the Radeon HD 5830, which comes with GPU core speed of 800 MHz, and 1024 MB of GDDR5 RAM set to run at 1000 MHz through a 256-bit bus. It also features 1120(224x5) SPUs, 56 TAUs, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 460		150 Watts
Radeon HD 5830		175 Watts
	Difference: 25 Watts (17%)

Memory Bandwidth

The Radeon HD 5830 should theoretically be a lot faster than the GeForce GTX 460 in general. (explain)

Radeon HD 5830		128000 MB/sec
GeForce GTX 460		86400 MB/sec
	Difference: 41600 (48%)

Texel Rate

The Radeon HD 5830 should be just a bit (approximately 19%) better at anisotropic filtering than the GeForce GTX 460. (explain)

Radeon HD 5830		44800 Mtexels/sec
GeForce GTX 460		37800 Mtexels/sec
	Difference: 7000 (19%)

Pixel Rate

If using a high screen resolution is important to you, then the GeForce GTX 460 is a better choice, by far. (explain)

GeForce GTX 460		16200 Mpixels/sec
Radeon HD 5830		12800 Mpixels/sec
	Difference: 3400 (27%)

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 max amount of information (counted in MB per second) that can be moved across the external memory interface in one second. The number is calculated by multiplying the card's interface width by its memory speed. If the card has DDR type memory, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly write to its local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.