GeForce GT 430 vs Radeon HD 6750 1GB

Intro

Compare those specs to the Radeon HD 6750 1GB, which has core clock speeds of 725 MHz on the GPU, and 1000 MHz on the 1024 MB of GDDR5 memory. It features 720 SPUs along with 36 Texture Address Units 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

Theoretically speaking, the Radeon HD 6750 1GB should be 122% faster than the GeForce GT 430 overall, due to its higher bandwidth. (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 quite a bit (approximately 133%) faster with regards to AF 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 will be quite a bit (approximately 314%) faster with regards to anti-aliasing than the GeForce GT 430, and also should be capable of handling higher screen resolutions while still performing well. (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: Memory bandwidth is the max amount of information (measured in megabytes per second) that can be transported across the external memory interface in one second. It is worked out by multiplying the bus width by the speed of its memory. If the card has DDR type RAM, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed in one second. This figure is calculated by multiplying the total number 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 one second.

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly write to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.