GeForce GT 440 1.5GB vs GeForce GTX 260 216SP 55 nm

Intro

Compare those specifications to the GeForce GTX 260 216SP 55 nm, which features a core clock speed of 576 MHz and a GDDR3 memory speed of 999 MHz. It also features a 448-bit bus, and uses a 55 nm design. It is made up of 216 SPUs, 72 TAUs, 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 216SP 55 nm		171 Watts
	Difference: 115 Watts (205%)

Memory Bandwidth

In theory, the GeForce GTX 260 216SP 55 nm will be 159% faster than the GeForce GT 440 1.5GB in general, due to its higher bandwidth. (explain)

GeForce GTX 260 216SP 55 nm		111888 MB/sec
GeForce GT 440 1.5GB		43200 MB/sec
	Difference: 68688 (159%)

Texel Rate

The GeForce GTX 260 216SP 55 nm will be a lot (about 191%) better at AF than the GeForce GT 440 1.5GB. (explain)

GeForce GTX 260 216SP 55 nm		41472 Mtexels/sec
GeForce GT 440 1.5GB		14256 Mtexels/sec
	Difference: 27216 (191%)

Pixel Rate

If using a high resolution is important to you, then the GeForce GTX 260 216SP 55 nm is a better choice, but it probably won't make a huge difference. (explain)

GeForce GTX 260 216SP 55 nm		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: Bandwidth is the largest amount of data (measured in MB per second) that can be moved over the external memory interface in one second. The number is worked out by multiplying the card's interface width by the speed of its memory. If it uses DDR type memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed in one second. This figure is calculated by multiplying the total texture units of the card by the core speed of the chip. The better the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.