GeForce GT 440 1.5GB vs GeForce GTX 285 1GB

Intro

Compare those specifications to the GeForce GTX 285 1GB, which features a GPU core clock speed of 648 MHz, and 1024 MB of GDDR3 RAM running at 1242 MHz through a 512-bit bus. It also is made up of 240 SPUs, 80 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 440 1.5GB		56 Watts
GeForce GTX 285 1GB		204 Watts
	Difference: 148 Watts (264%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 285 1GB should theoretically be much superior to the GeForce GT 440 1.5GB overall. (explain)

GeForce GTX 285 1GB		158976 MB/sec
GeForce GT 440 1.5GB		43200 MB/sec
	Difference: 115776 (268%)

Texel Rate

The GeForce GTX 285 1GB will be a lot (more or less 264%) faster with regards to anisotropic filtering than the GeForce GT 440 1.5GB. (explain)

GeForce GTX 285 1GB		51840 Mtexels/sec
GeForce GT 440 1.5GB		14256 Mtexels/sec
	Difference: 37584 (264%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce GTX 285 1GB is the winner, by a large margin. (explain)

GeForce GTX 285 1GB		20736 Mpixels/sec
GeForce GT 440 1.5GB		14256 Mpixels/sec
	Difference: 6480 (45%)

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 maximum amount of data (counted in MB per second) that can be transferred past the external memory interface within a second. The number is worked out by multiplying the card's bus width by its memory clock speed. If it uses DDR type RAM, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be 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 higher the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the most pixels the video card can possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.