GeForce 8800 GS vs GeForce GT 440 3GB

Intro

Compare those specs to the GeForce GT 440 3GB, which has a clock speed of 594 MHz and a GDDR3 memory frequency of 900 MHz. It also makes use of a 192-bit memory bus, and makes use of a 40 nm design. It features 144 SPUs, 24 Texture Address Units, and 24 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 440 3GB		56 Watts
GeForce 8800 GS		105 Watts
	Difference: 49 Watts (88%)

Memory Bandwidth

The GeForce GT 440 3GB, in theory, should be just a bit faster than the GeForce 8800 GS overall. (explain)

GeForce GT 440 3GB		43200 MB/sec
GeForce 8800 GS		38400 MB/sec
	Difference: 4800 (13%)

Texel Rate

The GeForce 8800 GS should be quite a bit (approximately 85%) faster with regards to texture filtering than the GeForce GT 440 3GB. (explain)

GeForce 8800 GS		26400 Mtexels/sec
GeForce GT 440 3GB		14256 Mtexels/sec
	Difference: 12144 (85%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce GT 440 3GB is a better choice, and very much so. (explain)

GeForce GT 440 3GB		14256 Mpixels/sec
GeForce 8800 GS		6600 Mpixels/sec
	Difference: 7656 (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 max amount of information (measured in megabytes per second) that can be transported across 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 memory, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.