GeForce 8800 GTS (G92) vs Radeon HD 6950 2GB

Intro

Compare all of that to the Radeon HD 6950 2GB, which uses a 40 nm design. AMD has set the core frequency at 800 MHz. The GDDR5 RAM runs at a frequency of 1250 MHz on this particular card. It features 1408 SPUs as well as 88 Texture Address Units and 32 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8800 GTS (G92)		135 Watts
Radeon HD 6950 2GB		200 Watts
	Difference: 65 Watts (48%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 6950 2GB will be 158% quicker than the GeForce 8800 GTS (G92) in general, due to its higher data rate. (explain)

Radeon HD 6950 2GB		160000 MB/sec
GeForce 8800 GTS (G92)		62080 MB/sec
	Difference: 97920 (158%)

Texel Rate

The Radeon HD 6950 2GB is a lot (more or less 69%) faster with regards to AF than the GeForce 8800 GTS (G92). (explain)

Radeon HD 6950 2GB		70400 Mtexels/sec
GeForce 8800 GTS (G92)		41600 Mtexels/sec
	Difference: 28800 (69%)

Pixel Rate

The Radeon HD 6950 2GB is a lot (about 146%) better at full screen anti-aliasing than the GeForce 8800 GTS (G92), and able to handle higher resolutions without losing too much performance. (explain)

Radeon HD 6950 2GB		25600 Mpixels/sec
GeForce 8800 GTS (G92)		10400 Mpixels/sec
	Difference: 15200 (146%)

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 information (in units of megabytes per second) that can be transferred over the external memory interface within a second. It is worked out by multiplying the card's bus width by the speed of its memory. If it uses DDR type memory, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster 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 number of texture map elements (texels) that can be applied per second. This number is calculated by multiplying the total number of texture units by the core clock speed of the chip. The higher this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on many 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.