GeForce GT 430 vs Radeon HD 6750 1GB

Intro

Compare those specifications to the Radeon HD 6750 1GB, which makes use of a 40 nm design. AMD has set the core frequency at 725 MHz. The GDDR5 RAM is set to run at a frequency of 1000 MHz on this specific card. It features 720 SPUs along with 36 TAUs and 16 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 6750 1GB		86 Watts
	Difference: 26 Watts (43%)

Memory Bandwidth

In theory, the Radeon HD 6750 1GB should be 122% faster than the GeForce GT 430 overall, due to its greater data rate. (explain)

Radeon HD 6750 1GB		64000 MB/sec
GeForce GT 430		28800 MB/sec
	Difference: 35200 (122%)

Texel Rate

The Radeon HD 6750 1GB is much (about 133%) faster with regards to texture filtering than the GeForce GT 430. (explain)

Radeon HD 6750 1GB		26100 Mtexels/sec
GeForce GT 430		11200 Mtexels/sec
	Difference: 14900 (133%)

Pixel Rate

The Radeon HD 6750 1GB should be quite a bit (more or less 314%) faster with regards to AA than the GeForce GT 430, and will be able to handle higher resolutions better. (explain)

Radeon HD 6750 1GB		11600 Mpixels/sec
GeForce GT 430		2800 Mpixels/sec
	Difference: 8800 (314%)

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 moved past the external memory interface in one second. The number is worked out by multiplying the card's interface width by its memory speed. In the case of DDR type RAM, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied per second. This figure is worked out by multiplying the total amount of texture units of the card 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 in a second.

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