GeForce 8800 GT 1GB vs GeForce GT 440 3GB

Intro

Compare those specifications to the GeForce GT 440 3GB, which comes with GPU core speed of 594 MHz, and 3072 MB of GDDR3 RAM set to run at 900 MHz through a 192-bit bus. It also features 144 SPUs, 24 Texture Address Units, and 24 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 440 3GB		56 Watts
GeForce 8800 GT 1GB		105 Watts
	Difference: 49 Watts (88%)

Memory Bandwidth

In theory, the GeForce 8800 GT 1GB should be 33% faster than the GeForce GT 440 3GB overall, because of its greater bandwidth. (explain)

GeForce 8800 GT 1GB		57600 MB/sec
GeForce GT 440 3GB		43200 MB/sec
	Difference: 14400 (33%)

Texel Rate

The GeForce 8800 GT 1GB should be quite a bit (about 136%) faster with regards to anisotropic filtering than the GeForce GT 440 3GB. (explain)

GeForce 8800 GT 1GB		33600 Mtexels/sec
GeForce GT 440 3GB		14256 Mtexels/sec
	Difference: 19344 (136%)

Pixel Rate

The GeForce GT 440 3GB will be quite a bit (approximately 49%) more effective at anti-aliasing than the GeForce 8800 GT 1GB, and able to handle higher resolutions more effectively. (explain)

GeForce GT 440 3GB		14256 Mpixels/sec
GeForce 8800 GT 1GB		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: Memory bandwidth is the maximum amount of data (measured in MB per second) that can be transferred across the external memory interface within a second. It is worked out by multiplying the card's interface width by the speed of its memory. In the case of DDR type memory, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR 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 worked out by multiplying the total texture units of the card by the core clock speed of the chip. The better the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the most pixels that 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 number of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on many 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.