GeForce GT 440 3GB vs GeForce GTX 260 216SP 55 nm

Intro

Compare those specifications to the GeForce GTX 260 216SP 55 nm, which uses a 55 nm design. nVidia has set the core speed at 576 MHz. The GDDR3 RAM runs at a frequency of 999 MHz on this card. It features 216 SPUs as well as 72 TAUs and 28 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 440 3GB		56 Watts
GeForce GTX 260 216SP 55 nm		171 Watts
	Difference: 115 Watts (205%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 260 216SP 55 nm should theoretically be quite a bit better than the GeForce GT 440 3GB overall. (explain)

GeForce GTX 260 216SP 55 nm		111888 MB/sec
GeForce GT 440 3GB		43200 MB/sec
	Difference: 68688 (159%)

Texel Rate

The GeForce GTX 260 216SP 55 nm will be quite a bit (about 191%) better at texture filtering than the GeForce GT 440 3GB. (explain)

GeForce GTX 260 216SP 55 nm		41472 Mtexels/sec
GeForce GT 440 3GB		14256 Mtexels/sec
	Difference: 27216 (191%)

Pixel Rate

The GeForce GTX 260 216SP 55 nm will be a small bit (about 13%) better at full screen anti-aliasing than the GeForce GT 440 3GB, and should be capable of handling higher resolutions better. (explain)

GeForce GTX 260 216SP 55 nm		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: Memory bandwidth is the max amount of information (counted in megabytes per second) that can be transported over the external memory interface in a second. It is calculated by multiplying the interface width by the speed of its memory. If the card has DDR type memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied in one second. This is calculated by multiplying the total amount of texture units of the card 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 the graphics card can possibly record to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes 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 memory bandwidth is, the lower the ability to get to the max fill rate.