GeForce GT 430 vs Radeon HD 6670 (OEM) 1GB

Intro

Compare all of that to the Radeon HD 6670 (OEM) 1GB, which uses a 40 nm design. AMD has set the core speed at 800 MHz. The GDDR5 memory works at a speed of 1000 MHz on this particular card. It features 480 SPUs as well as 24 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 6670 (OEM) 1GB		63 Watts
	Difference: 3 Watts (5%)

Memory Bandwidth

As far as performance goes, the Radeon HD 6670 (OEM) 1GB should theoretically be much superior to the GeForce GT 430 overall. (explain)

Radeon HD 6670 (OEM) 1GB		64000 MB/sec
GeForce GT 430		28800 MB/sec
	Difference: 35200 (122%)

Texel Rate

The Radeon HD 6670 (OEM) 1GB is quite a bit (about 71%) faster with regards to anisotropic filtering than the GeForce GT 430. (explain)

Radeon HD 6670 (OEM) 1GB		19200 Mtexels/sec
GeForce GT 430		11200 Mtexels/sec
	Difference: 8000 (71%)

Pixel Rate

The Radeon HD 6670 (OEM) 1GB should be quite a bit (about 129%) better at full screen anti-aliasing than the GeForce GT 430, and should be capable of handling higher screen resolutions without slowing down too much. (explain)

Radeon HD 6670 (OEM) 1GB		6400 Mpixels/sec
GeForce GT 430		2800 Mpixels/sec
	Difference: 3600 (129%)

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 maximum amount of information (measured in megabytes per second) that can be moved over the external memory interface in a second. It's worked out by multiplying the bus width by its memory speed. If it uses DDR memory, it 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 AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed in one second. This figure is calculated by multiplying the total texture units of the card by the core speed of the chip. The better the texel rate, the better the 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 that the graphics card could possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.