GeForce GT 430 vs Radeon HD 5830

Intro

Compare those specs to the Radeon HD 5830, which makes use of a 40 nm design. AMD has set the core frequency at 800 MHz. The GDDR5 memory works at a frequency of 1000 MHz on this particular model. It features 1120(224x5) SPUs as well as 56 TAUs and 16 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 430		60 Watts
Radeon HD 5830		175 Watts
	Difference: 115 Watts (192%)

Memory Bandwidth

Theoretically, the Radeon HD 5830 should perform a lot faster than the GeForce GT 430 overall. (explain)

Radeon HD 5830		128000 MB/sec
GeForce GT 430		28800 MB/sec
	Difference: 99200 (344%)

Texel Rate

The Radeon HD 5830 is quite a bit (approximately 300%) better at anisotropic filtering than the GeForce GT 430. (explain)

Radeon HD 5830		44800 Mtexels/sec
GeForce GT 430		11200 Mtexels/sec
	Difference: 33600 (300%)

Pixel Rate

If running with high levels of AA is important to you, then the Radeon HD 5830 is a better choice, and very much so. (explain)

Radeon HD 5830		12800 Mpixels/sec
GeForce GT 430		2800 Mpixels/sec
	Difference: 10000 (357%)

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 information (measured in MB per second) that can be transported over the external memory interface in a second. The number is worked out by multiplying the card's interface width by its memory clock speed. In the case of DDR RAM, the result should be multiplied by 2 once again. If 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 amount of texture map elements (texels) that can be applied per second. This figure is worked out by multiplying the total 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 per second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly write to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.