GeForce GT 430 vs Radeon HD 4730

Intro

Compare those specs to the Radeon HD 4730, which comes with a core clock speed of 700 MHz and a GDDR5 memory speed of 900 MHz. It also features a 128-bit memory bus, and uses a 55 nm design. It is comprised of 640(128x5) SPUs, 32 Texture Address Units, and 8 ROPs.

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 should perform much faster than the GeForce GT 430 in general. (explain)

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

Texel Rate

The Radeon HD 4730 will be much (about 100%) better at anisotropic filtering 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 quite a bit (about 100%) faster with regards to FSAA than the GeForce GT 430, and also capable of handling higher screen resolutions without slowing down too much. (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: Bandwidth is the largest amount of data (measured in megabytes per second) that can be transported over the external memory interface within a second. The number is calculated by multiplying the bus width by its memory clock speed. If it uses DDR RAM, the result should be multiplied by 2 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 number of texture map elements (texels) that can be processed per second. This number is worked out by multiplying the total number of texture units by the core speed of the chip. The higher this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly write to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Render Output Units 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 rate also depends on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.