GeForce GT 240 GDDR5 vs GeForce GTX 780 Ti

Intro

Compare those specs to the GeForce GTX 780 Ti, which features a GPU core clock speed of 875 MHz, and 3072 MB of GDDR5 memory running at 1750 MHz through a 384-bit bus. It also is made up of 2880 Stream Processors, 240 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 780 Ti		250 Watts
	Difference: 180 Watts (257%)

Memory Bandwidth

The GeForce GTX 780 Ti should in theory be much faster than the GeForce GT 240 GDDR5 in general. (explain)

GeForce GTX 780 Ti		336000 MB/sec
GeForce GT 240 GDDR5		54400 MB/sec
	Difference: 281600 (518%)

Texel Rate

The GeForce GTX 780 Ti will be much (approximately 1093%) faster with regards to AF than the GeForce GT 240 GDDR5. (explain)

GeForce GTX 780 Ti		210000 Mtexels/sec
GeForce GT 240 GDDR5		17600 Mtexels/sec
	Difference: 192400 (1093%)

Pixel Rate

The GeForce GTX 780 Ti should be quite a bit (about 855%) faster with regards to FSAA than the GeForce GT 240 GDDR5, and will be able to handle higher resolutions more effectively. (explain)

GeForce GTX 780 Ti		42000 Mpixels/sec
GeForce GT 240 GDDR5		4400 Mpixels/sec
	Difference: 37600 (855%)

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 information (counted in MB per second) that can be moved past the external memory interface in a second. It is calculated by multiplying the card's interface width by its memory speed. If it uses DDR type memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly record to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of colour 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 output rate also depends on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.