GeForce GT 440 3GB vs GeForce GTX 260

Intro

Compare that to the GeForce GTX 260, which has a core clock frequency of 576 MHz and a GDDR3 memory frequency of 999 MHz. It also features a 448-bit memory bus, and uses a 65 nm design. It features 192 SPUs, 64 Texture Address Units, and 28 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 440 3GB		56 Watts
GeForce GTX 260		182 Watts
	Difference: 126 Watts (225%)

Memory Bandwidth

Performance-wise, the GeForce GTX 260 should theoretically be quite a bit better than the GeForce GT 440 3GB overall. (explain)

GeForce GTX 260		111888 MB/sec
GeForce GT 440 3GB		43200 MB/sec
	Difference: 68688 (159%)

Texel Rate

The GeForce GTX 260 should be much (about 159%) more effective at AF than the GeForce GT 440 3GB. (explain)

GeForce GTX 260		36864 Mtexels/sec
GeForce GT 440 3GB		14256 Mtexels/sec
	Difference: 22608 (159%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce GTX 260 is the winner, though not by far. (explain)

GeForce GTX 260		16128 Mpixels/sec
GeForce GT 440 3GB		14256 Mpixels/sec
	Difference: 1872 (13%)

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 data (in units of MB per second) that can be moved past the external memory interface within a second. It is calculated by multiplying the card's interface width by its memory speed. In the case of DDR type RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, 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 amount of texture map elements (texels) that can be applied in one second. This figure is calculated 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 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 that the graphics card could possibly record to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.