GeForce GT 240 GDDR5 vs GeForce GTX 560

Intro

Compare all that to the GeForce GTX 560, which features GPU clock speed of 810 MHz, and 1024 MB of GDDR5 RAM set to run at 1001 MHz through a 256-bit bus. It also is made up of 336 Stream Processors, 56 TAUs, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 240 GDDR5		70 Watts
GeForce GTX 560		150 Watts
	Difference: 80 Watts (114%)

Memory Bandwidth

In theory, the GeForce GTX 560 should perform quite a bit faster than the GeForce GT 240 GDDR5 in general. (explain)

GeForce GTX 560		128128 MB/sec
GeForce GT 240 GDDR5		54400 MB/sec
	Difference: 73728 (136%)

Texel Rate

The GeForce GTX 560 will be quite a bit (more or less 158%) better at texture filtering than the GeForce GT 240 GDDR5. (explain)

GeForce GTX 560		45360 Mtexels/sec
GeForce GT 240 GDDR5		17600 Mtexels/sec
	Difference: 27760 (158%)

Pixel Rate

The GeForce GTX 560 will be much (more or less 489%) better at FSAA than the GeForce GT 240 GDDR5, and should be capable of handling higher screen resolutions while still performing well. (explain)

GeForce GTX 560		25920 Mpixels/sec
GeForce GT 240 GDDR5		4400 Mpixels/sec
	Difference: 21520 (489%)

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 megabytes per second) that can be transported past the external memory interface in one second. It is worked out by multiplying the interface width by its memory speed. In the case of DDR type RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels the video card can possibly write to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.