GeForce 8800 GT 256MB vs GeForce GT 440 1.5GB

Intro

Compare those specs to the GeForce GT 440 1.5GB, which has GPU core speed of 594 MHz, and 1536 MB of GDDR3 RAM running at 900 MHz through a 192-bit bus. It also is made up of 144 Stream Processors, 24 TAUs, and 24 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 440 1.5GB		56 Watts
GeForce 8800 GT 256MB		105 Watts
	Difference: 49 Watts (88%)

Memory Bandwidth

In theory, the GeForce 8800 GT 256MB will be 4% faster than the GeForce GT 440 1.5GB in general, because of its greater bandwidth. (explain)

GeForce 8800 GT 256MB		44800 MB/sec
GeForce GT 440 1.5GB		43200 MB/sec
	Difference: 1600 (4%)

Texel Rate

The GeForce 8800 GT 256MB is a lot (more or less 136%) faster with regards to texture filtering than the GeForce GT 440 1.5GB. (explain)

GeForce 8800 GT 256MB		33600 Mtexels/sec
GeForce GT 440 1.5GB		14256 Mtexels/sec
	Difference: 19344 (136%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce GT 440 1.5GB is superior to the GeForce 8800 GT 256MB, by a large margin. (explain)

GeForce GT 440 1.5GB		14256 Mpixels/sec
GeForce 8800 GT 256MB		9600 Mpixels/sec
	Difference: 4656 (49%)

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 (in units of MB per second) that can be moved over the external memory interface in a second. It's calculated by multiplying the interface width by its memory speed. If the card has DDR type RAM, it should 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, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.