GeForce GTX 470 vs Radeon HD 5830

Intro

Compare those specs to the Radeon HD 5830, which features a core clock frequency of 800 MHz and a GDDR5 memory frequency of 1000 MHz. It also makes use of a 256-bit bus, and uses a 40 nm design. It is made up of 1120(224x5) SPUs, 56 TAUs, and 16 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5830		175 Watts
GeForce GTX 470		215 Watts
	Difference: 40 Watts (23%)

Memory Bandwidth

In theory, the GeForce GTX 470 is 5% quicker than the Radeon HD 5830 in general, due to its higher bandwidth. (explain)

GeForce GTX 470		133920 MB/sec
Radeon HD 5830		128000 MB/sec
	Difference: 5920 (5%)

Texel Rate

The Radeon HD 5830 is a lot (more or less 32%) faster with regards to texture filtering than the GeForce GTX 470. (explain)

Radeon HD 5830		44800 Mtexels/sec
GeForce GTX 470		33992 Mtexels/sec
	Difference: 10808 (32%)

Pixel Rate

The GeForce GTX 470 should be much (about 90%) faster with regards to anti-aliasing than the Radeon HD 5830, and should be able to handle higher screen resolutions without slowing down too much. (explain)

GeForce GTX 470		24280 Mpixels/sec
Radeon HD 5830		12800 Mpixels/sec
	Difference: 11480 (90%)

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 information (in units of MB per second) that can be transferred past the external memory interface in a second. The number is calculated by multiplying the bus width by its memory speed. In the case of DDR memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, 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 amount of texture map elements (texels) that can be processed per second. This number is calculated by multiplying the total number of texture units by the core clock speed of the chip. The higher the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

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