GeForce GT 430 vs Radeon HD 5670

Intro

Compare that to the Radeon HD 5670, which has a core clock speed of 775 MHz and a GDDR5 memory frequency of 1000 MHz. It also makes use of a 128-bit memory bus, and uses a 40 nm design. It features 400(80x5) SPUs, 20 TAUs, and 8 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 430		60 Watts
Radeon HD 5670		61 Watts
	Difference: 1 Watts (2%)

Memory Bandwidth

The Radeon HD 5670 should theoretically perform a lot faster than the GeForce GT 430 in general. (explain)

Radeon HD 5670		64000 MB/sec
GeForce GT 430		28800 MB/sec
	Difference: 35200 (122%)

Texel Rate

The Radeon HD 5670 will be a lot (more or less 38%) faster with regards to anisotropic filtering than the GeForce GT 430. (explain)

Radeon HD 5670		15500 Mtexels/sec
GeForce GT 430		11200 Mtexels/sec
	Difference: 4300 (38%)

Pixel Rate

The Radeon HD 5670 should be quite a bit (more or less 121%) more effective at full screen anti-aliasing than the GeForce GT 430, and also will be able to handle higher resolutions more effectively. (explain)

Radeon HD 5670		6200 Mpixels/sec
GeForce GT 430		2800 Mpixels/sec
	Difference: 3400 (121%)

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 largest amount of information (measured in MB per second) that can be transferred over the external memory interface in one second. It is worked out by multiplying the card's interface width by its memory clock speed. If it uses DDR type memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the better 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 amount of texture map elements (texels) that can be processed per second. This number is calculated by multiplying the total texture units by the core speed of the chip. The higher the texel rate, 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 most pixels that the graphics card could possibly write to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of colour ROPs 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 is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.