GeForce 9800 GTX vs GeForce GT 440 3GB

Intro

Compare all of that to the GeForce GT 440 3GB, which has core clock speeds of 594 MHz on the GPU, and 900 MHz on the 3072 MB of GDDR3 memory. It features 144 SPUs along with 24 TAUs and 24 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 440 3GB		56 Watts
GeForce 9800 GTX		140 Watts
	Difference: 84 Watts (150%)

Memory Bandwidth

Theoretically speaking, the GeForce 9800 GTX is 63% quicker than the GeForce GT 440 3GB overall, because of its higher bandwidth. (explain)

GeForce 9800 GTX		70400 MB/sec
GeForce GT 440 3GB		43200 MB/sec
	Difference: 27200 (63%)

Texel Rate

The GeForce 9800 GTX is a lot (approximately 203%) more effective at anisotropic filtering than the GeForce GT 440 3GB. (explain)

GeForce 9800 GTX		43200 Mtexels/sec
GeForce GT 440 3GB		14256 Mtexels/sec
	Difference: 28944 (203%)

Pixel Rate

The GeForce GT 440 3GB will be quite a bit (about 32%) more effective at FSAA than the GeForce 9800 GTX, and also should be able to handle higher resolutions while still performing well. (explain)

GeForce GT 440 3GB		14256 Mpixels/sec
GeForce 9800 GTX		10800 Mpixels/sec
	Difference: 3456 (32%)

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 maximum amount of information (measured in MB per second) that can be moved over the external memory interface in a second. The number is calculated by multiplying the bus width by its memory clock speed. If it uses DDR RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed per second. This number 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 processed per second.

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly write to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.