GeForce GT 440 1.5GB vs GeForce GTX 260 Core 216

Intro

Compare all that to the GeForce GTX 260 Core 216, which has a GPU core clock speed of 576 MHz, and 896 MB of GDDR3 RAM running at 999 MHz through a 448-bit bus. It also is made up of 216 SPUs, 72 Texture Address Units, and 28 ROPs.

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 Core 216		202 Watts
	Difference: 146 Watts (261%)

Memory Bandwidth

In theory, the GeForce GTX 260 Core 216 should be 159% quicker than the GeForce GT 440 1.5GB overall, because of its higher bandwidth. (explain)

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

Texel Rate

The GeForce GTX 260 Core 216 should be quite a bit (approximately 191%) faster with regards to AF than the GeForce GT 440 1.5GB. (explain)

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

Pixel Rate

The GeForce GTX 260 Core 216 will be a small bit (more or less 13%) better at anti-aliasing than the GeForce GT 440 1.5GB, and capable of handling higher screen resolutions without slowing down too much. (explain)

GeForce GTX 260 Core 216		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 maximum amount of data (counted in megabytes per second) that can be moved across the external memory interface within a second. The number is calculated by multiplying the card's bus width by its memory speed. If it uses DDR memory, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed per second. This figure is worked out by multiplying the total texture units of the card by the core 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 applied in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.