GeForce GT 430 (OEM) vs Radeon HD 5830

Intro

Compare that to the Radeon HD 5830, which has GPU clock speed of 800 MHz, and 1024 MB of GDDR5 RAM running at 1000 MHz through a 256-bit bus. It also is comprised of 1120(224x5) SPUs, 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 (OEM)		60 Watts
Radeon HD 5830		175 Watts
	Difference: 115 Watts (192%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 5830 will be 344% faster than the GeForce GT 430 (OEM) in general, because of its greater data rate. (explain)

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

Texel Rate

The Radeon HD 5830 is a lot (about 300%) faster with regards to AF than the GeForce GT 430 (OEM). (explain)

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

Pixel Rate

If using a high screen resolution is important to you, then the Radeon HD 5830 is the winner, by far. (explain)

Radeon HD 5830		12800 Mpixels/sec
GeForce GT 430 (OEM)		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: Bandwidth is the max amount of data (counted in megabytes per second) that can be transported over the external memory interface in one second. It is worked out by multiplying the bus width by the speed of its memory. In the case of DDR memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly write to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.