GeForce GT 430 (OEM) vs Radeon HD 4730

Intro

Compare those specs to the Radeon HD 4730, which has core clock speeds of 700 MHz on the GPU, and 900 MHz on the 512 MB of GDDR5 RAM. It features 640(128x5) SPUs along with 32 TAUs and 8 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 430 (OEM)		60 Watts
Radeon HD 4730		140 Watts
	Difference: 80 Watts (133%)

Memory Bandwidth

In theory, the Radeon HD 4730 will be 100% quicker than the GeForce GT 430 (OEM) overall, because of its higher bandwidth. (explain)

Radeon HD 4730		57600 MB/sec
GeForce GT 430 (OEM)		28800 MB/sec
	Difference: 28800 (100%)

Texel Rate

The Radeon HD 4730 will be quite a bit (about 100%) better at anisotropic filtering than the GeForce GT 430 (OEM). (explain)

Radeon HD 4730		22400 Mtexels/sec
GeForce GT 430 (OEM)		11200 Mtexels/sec
	Difference: 11200 (100%)

Pixel Rate

The Radeon HD 4730 will be a lot (about 100%) better at anti-aliasing than the GeForce GT 430 (OEM), and able to handle higher resolutions without slowing down too much. (explain)

Radeon HD 4730		5600 Mpixels/sec
GeForce GT 430 (OEM)		2800 Mpixels/sec
	Difference: 2800 (100%)

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 max amount of information (in units of megabytes per second) that can be moved past the external memory interface in one second. It is calculated by multiplying the card's interface width by its memory clock speed. If the card has DDR type RAM, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. 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 texture map elements (texels) that can be applied in one second. This number is worked out by multiplying the total amount of texture units by the core speed of the chip. The better this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly write to the local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.