GeForce 8800 GTS (G92) vs GeForce GTS 450 1GB

Intro

Compare those specs to the GeForce GTS 450 1GB, which features clock speeds of 783 MHz on the GPU, and 902 MHz on the 1024 MB of GDDR5 RAM. It features 192 SPUs as well as 32 TAUs and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTS 450 1GB		106 Watts
GeForce 8800 GTS (G92)		135 Watts
	Difference: 29 Watts (27%)

Memory Bandwidth

Theoretically, the GeForce 8800 GTS (G92) should perform a little bit faster than the GeForce GTS 450 1GB overall. (explain)

GeForce 8800 GTS (G92)		62080 MB/sec
GeForce GTS 450 1GB		57728 MB/sec
	Difference: 4352 (8%)

Texel Rate

The GeForce 8800 GTS (G92) is quite a bit (about 66%) faster with regards to texture filtering than the GeForce GTS 450 1GB. (explain)

GeForce 8800 GTS (G92)		41600 Mtexels/sec
GeForce GTS 450 1GB		25056 Mtexels/sec
	Difference: 16544 (66%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce GTS 450 1GB is a better choice, though only just barely. (explain)

GeForce GTS 450 1GB		12528 Mpixels/sec
GeForce 8800 GTS (G92)		10400 Mpixels/sec
	Difference: 2128 (20%)

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 information (in units of megabytes per second) that can be transported over the external memory interface in a second. The number is calculated by multiplying the interface width by its memory clock speed. If it uses DDR type RAM, the result should be multiplied by 2 once again. If 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 texture map elements (texels) that are processed per second. This figure is calculated by multiplying the total number of 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 in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly record to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of colour ROPs 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 output 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 ability to reach the maximum fill rate.