GeForce 8800 GTX vs Radeon HD 6670 (OEM)

Intro

Compare those specifications to the Radeon HD 6670 (OEM), which has core clock speeds of 800 MHz on the GPU, and 1000 MHz on the 512 MB of GDDR5 memory. It features 480 SPUs along with 24 TAUs and 8 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6670 (OEM)		63 Watts
GeForce 8800 GTX		155 Watts
	Difference: 92 Watts (146%)

Memory Bandwidth

The GeForce 8800 GTX should in theory perform quite a bit faster than the Radeon HD 6670 (OEM) in general. (explain)

GeForce 8800 GTX		86400 MB/sec
Radeon HD 6670 (OEM)		64000 MB/sec
	Difference: 22400 (35%)

Texel Rate

The GeForce 8800 GTX should be quite a bit (approximately 92%) more effective at AF than the Radeon HD 6670 (OEM). (explain)

GeForce 8800 GTX		36800 Mtexels/sec
Radeon HD 6670 (OEM)		19200 Mtexels/sec
	Difference: 17600 (92%)

Pixel Rate

The GeForce 8800 GTX should be a lot (more or less 116%) faster with regards to full screen anti-aliasing than the Radeon HD 6670 (OEM), and also able to handle higher screen resolutions without slowing down too much. (explain)

GeForce 8800 GTX		13800 Mpixels/sec
Radeon HD 6670 (OEM)		6400 Mpixels/sec
	Difference: 7400 (116%)

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 MB per second) that can be moved past the external memory interface within a second. The number is worked out by multiplying the card's interface width by its memory clock speed. If the card has DDR type memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed in one second. This is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The higher this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly write to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.