GeForce GT 240 GDDR5 vs GeForce GTX 480

Intro

Compare that to the GeForce GTX 480, which uses a 40 nm design. nVidia has clocked the core frequency at 700 MHz. The GDDR5 RAM is set to run at a speed of 924 MHz on this particular card. It features 480 SPUs along with 60 TAUs and 48 ROPs.

Display Graphs

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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

The GeForce GTX 480 should theoretically be quite a bit faster than the GeForce GT 240 GDDR5 overall. (explain)

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

Texel Rate

The GeForce GTX 480 should be a lot (approximately 139%) faster with regards to 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

If using a high resolution is important to you, then the GeForce GTX 480 is a better choice, by far. (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: Bandwidth is the maximum amount of data (in units of MB per second) that can be transported past the external memory interface within a second. It is worked out by multiplying the card's bus width by its memory clock speed. If the card has DDR RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better 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 amount of texture map elements (texels) that are processed in one second. This number is calculated by multiplying the total amount of texture units of the card by the core clock speed of the chip. The better 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 number of pixels the video card could possibly record to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.