GeForce GT 240 GDDR5 vs GeForce GTX 480

Intro

Compare those specs to the GeForce GTX 480, which has a core clock speed of 700 MHz and a GDDR5 memory frequency of 924 MHz. It also makes use of a 384-bit memory bus, and makes use of a 40 nm design. It is comprised of 480 SPUs, 60 Texture Address Units, and 48 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 240 GDDR5		70 Watts
GeForce GTX 480		250 Watts
	Difference: 180 Watts (257%)

Memory Bandwidth

Theoretically, the GeForce GTX 480 should perform much faster than the GeForce GT 240 GDDR5 in general. (explain)

GeForce GTX 480		177408 MB/sec
GeForce GT 240 GDDR5		54400 MB/sec
	Difference: 123008 (226%)

Texel Rate

The GeForce GTX 480 is a lot (about 139%) better at anisotropic filtering than the GeForce GT 240 GDDR5. (explain)

GeForce GTX 480		42000 Mtexels/sec
GeForce GT 240 GDDR5		17600 Mtexels/sec
	Difference: 24400 (139%)

Pixel Rate

The GeForce GTX 480 is much (about 664%) better at full screen anti-aliasing than the GeForce GT 240 GDDR5, and also should be able to handle higher resolutions without slowing down too much. (explain)

GeForce GTX 480		33600 Mpixels/sec
GeForce GT 240 GDDR5		4400 Mpixels/sec
	Difference: 29200 (664%)

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 max amount of data (measured in megabytes per second) that can be transported past the external memory interface within a second. It's worked out by multiplying the interface width by its memory clock speed. If it uses DDR type RAM, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed per second. This number is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The higher this number, the better the video 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 maximum number of pixels the video card could possibly write to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.