GeForce GT 430 vs Radeon HD 5830

Intro

Compare those specs 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 RAM. It features 1120(224x5) SPUs as well as 56 Texture Address Units and 16 ROPs.

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 speaking, the Radeon HD 5830 will be 344% quicker than the GeForce GT 430 overall, due to its higher bandwidth. (explain)

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

Texel Rate

The Radeon HD 5830 should be much (more or less 300%) faster with regards to 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 using a high resolution is important to you, then the Radeon HD 5830 is superior to the GeForce GT 430, by a large margin. (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 data (counted in MB per second) that can be moved past the external memory interface in one second. It's worked out by multiplying the interface width by its memory speed. If it uses DDR type memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better 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 can be applied in one second. This is calculated by multiplying the total texture units by the core speed of the chip. The better this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the most pixels the video card can possibly write to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of ROPs 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 fill rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.