GeForce GT 440 1.5GB vs GeForce GTX 260

Intro

Compare all that to the GeForce GTX 260, which comes with GPU core speed of 576 MHz, and 896 MB of GDDR3 RAM running at 999 MHz through a 448-bit bus. It also features 192 SPUs, 64 Texture Address Units, and 28 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 440 1.5GB		56 Watts
GeForce GTX 260		182 Watts
	Difference: 126 Watts (225%)

Memory Bandwidth

In theory, the GeForce GTX 260 should be 159% faster than the GeForce GT 440 1.5GB in general, due to its greater data rate. (explain)

GeForce GTX 260		111888 MB/sec
GeForce GT 440 1.5GB		43200 MB/sec
	Difference: 68688 (159%)

Texel Rate

The GeForce GTX 260 should be much (about 159%) more effective at texture filtering than the GeForce GT 440 1.5GB. (explain)

GeForce GTX 260		36864 Mtexels/sec
GeForce GT 440 1.5GB		14256 Mtexels/sec
	Difference: 22608 (159%)

Pixel Rate

The GeForce GTX 260 will be a bit (about 13%) faster with regards to anti-aliasing than the GeForce GT 440 1.5GB, and also will be capable of handling higher screen resolutions better. (explain)

GeForce GTX 260		16128 Mpixels/sec
GeForce GT 440 1.5GB		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: Memory bandwidth is the largest amount of data (in units of megabytes per second) that can be moved across the external memory interface in one second. It is calculated by multiplying the card's interface width by its memory speed. In the case of DDR RAM, 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 texture map elements (texels) that can be applied per second. This figure is calculated by multiplying the total amount of texture units by the core clock speed of the chip. The higher this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.