GeForce 9800 GTX vs GeForce GT 440 1.5GB

Intro

Compare that to the GeForce GT 440 1.5GB, which has GPU clock speed of 594 MHz, and 1536 MB of GDDR3 memory running at 900 MHz through a 192-bit bus. It also is made up of 144 Stream Processors, 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 1.5GB		56 Watts
GeForce 9800 GTX		140 Watts
	Difference: 84 Watts (150%)

Memory Bandwidth

As far as performance goes, the GeForce 9800 GTX should theoretically be much superior to the GeForce GT 440 1.5GB overall. (explain)

GeForce 9800 GTX		70400 MB/sec
GeForce GT 440 1.5GB		43200 MB/sec
	Difference: 27200 (63%)

Texel Rate

The GeForce 9800 GTX should be quite a bit (more or less 203%) more effective at AF than the GeForce GT 440 1.5GB. (explain)

GeForce 9800 GTX		43200 Mtexels/sec
GeForce GT 440 1.5GB		14256 Mtexels/sec
	Difference: 28944 (203%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce GT 440 1.5GB is the winner, by far. (explain)

GeForce GT 440 1.5GB		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: Memory bandwidth is the max amount of information (counted in MB per second) that can be transported past the external memory interface in one second. It is worked out by multiplying the bus width by the speed of its memory. If the card has DDR memory, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied in one second. This figure is calculated by multiplying the total number of texture units by the core clock 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 chip could possibly record to the local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the number of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes 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, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.