GeForce GT 440 3GB vs GeForce GTX 480

Intro

Compare those specs to the GeForce GTX 480, which features GPU clock speed of 700 MHz, and 1536 MB of GDDR5 RAM set to run at 924 MHz through a 384-bit bus. It also features 480 Stream Processors, 60 Texture Address Units, and 48 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 440 3GB		56 Watts
GeForce GTX 480		250 Watts
	Difference: 194 Watts (346%)

Memory Bandwidth

Theoretically, the GeForce GTX 480 should be quite a bit faster than the GeForce GT 440 3GB overall. (explain)

GeForce GTX 480		177408 MB/sec
GeForce GT 440 3GB		43200 MB/sec
	Difference: 134208 (311%)

Texel Rate

The GeForce GTX 480 will be quite a bit (approximately 195%) faster with regards to texture filtering than the GeForce GT 440 3GB. (explain)

GeForce GTX 480		42000 Mtexels/sec
GeForce GT 440 3GB		14256 Mtexels/sec
	Difference: 27744 (195%)

Pixel Rate

The GeForce GTX 480 will be a lot (approximately 136%) faster with regards to anti-aliasing than the GeForce GT 440 3GB, and also should be capable of handling higher resolutions better. (explain)

GeForce GTX 480		33600 Mpixels/sec
GeForce GT 440 3GB		14256 Mpixels/sec
	Difference: 19344 (136%)

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 max amount of data (counted in MB per second) that can be transferred across the external memory interface in one second. It is worked out by multiplying the bus width by its memory clock speed. If the card has DDR 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 anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied per second. This is worked out by multiplying the total texture units by the core speed of the chip. The better the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly record to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the amount of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.