GeForce GT 430 vs Radeon HD 4730

Intro

Compare all of that to the Radeon HD 4730, which has core speeds of 700 MHz on the GPU, and 900 MHz on the 512 MB of GDDR5 memory. It features 640(128x5) SPUs as well as 32 Texture Address Units and 8 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 4730		140 Watts
	Difference: 80 Watts (133%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 4730 is 100% quicker than the GeForce GT 430 overall, due to its higher data rate. (explain)

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

Texel Rate

The Radeon HD 4730 is a lot (approximately 100%) faster with regards to AF than the GeForce GT 430. (explain)

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

Pixel Rate

The Radeon HD 4730 will be a lot (approximately 100%) faster with regards to full screen anti-aliasing than the GeForce GT 430, and will be able to handle higher screen resolutions while still performing well. (explain)

Radeon HD 4730		5600 Mpixels/sec
GeForce GT 430		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 maximum amount of information (in units of megabytes per second) that can be transferred over the external memory interface in a second. The number is worked out by multiplying the card's interface width by its memory speed. In the case of DDR type RAM, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed per second. This is calculated 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 graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly record to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.