GeForce GT 240 GDDR5 1GB vs GeForce GTX 660 Ti

Intro

Compare that to the GeForce GTX 660 Ti, which has GPU clock speed of 915 MHz, and 2048 MB of GDDR5 memory running at 1500 MHz through a 192-bit bus. It also is comprised of 1344 Stream Processors, 112 Texture Address Units, and 24 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 240 GDDR5 1GB		70 Watts
GeForce GTX 660 Ti		150 Watts
	Difference: 80 Watts (114%)

Memory Bandwidth

Theoretically, the GeForce GTX 660 Ti should perform a lot faster than the GeForce GT 240 GDDR5 1GB in general. (explain)

GeForce GTX 660 Ti		144000 MB/sec
GeForce GT 240 GDDR5 1GB		54400 MB/sec
	Difference: 89600 (165%)

Texel Rate

The GeForce GTX 660 Ti will be quite a bit (more or less 482%) more effective at AF than the GeForce GT 240 GDDR5 1GB. (explain)

GeForce GTX 660 Ti		102480 Mtexels/sec
GeForce GT 240 GDDR5 1GB		17600 Mtexels/sec
	Difference: 84880 (482%)

Pixel Rate

The GeForce GTX 660 Ti will be quite a bit (more or less 399%) faster with regards to anti-aliasing than the GeForce GT 240 GDDR5 1GB, and also will be capable of handling higher resolutions while still performing well. (explain)

GeForce GTX 660 Ti		21960 Mpixels/sec
GeForce GT 240 GDDR5 1GB		4400 Mpixels/sec
	Difference: 17560 (399%)

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 largest amount of data (measured in 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 the speed of its memory. If the card has DDR type memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied in one second. This figure is calculated by multiplying the total number of texture units of the card by the core clock speed of the chip. The higher this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly record to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.