GeForce GT 440 3GB vs GeForce GTX 570

Intro

Compare those specs to the GeForce GTX 570, which comes with a core clock frequency of 732 MHz and a GDDR5 memory speed of 950 MHz. It also makes use of a 320-bit memory bus, and uses a 40 nm design. It is made up of 480 SPUs, 60 TAUs, and 40 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 440 3GB		56 Watts
GeForce GTX 570		219 Watts
	Difference: 163 Watts (291%)

Memory Bandwidth

Performance-wise, the GeForce GTX 570 should in theory be much superior to the GeForce GT 440 3GB overall. (explain)

GeForce GTX 570		152000 MB/sec
GeForce GT 440 3GB		43200 MB/sec
	Difference: 108800 (252%)

Texel Rate

The GeForce GTX 570 will be a lot (more or less 208%) faster with regards to texture filtering than the GeForce GT 440 3GB. (explain)

GeForce GTX 570		43920 Mtexels/sec
GeForce GT 440 3GB		14256 Mtexels/sec
	Difference: 29664 (208%)

Pixel Rate

The GeForce GTX 570 will be much (about 105%) better at FSAA than the GeForce GT 440 3GB, and also capable of handling higher screen resolutions without losing too much performance. (explain)

GeForce GTX 570		29280 Mpixels/sec
GeForce GT 440 3GB		14256 Mpixels/sec
	Difference: 15024 (105%)

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 information (counted in megabytes per second) that can be transported across the external memory interface in one second. The number is worked out by multiplying the bus width by its memory speed. In the case of DDR type memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen 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 number of texture units of the card by the core speed of the chip. The higher this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly write to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.