GeForce GT 240 GDDR5 1GB vs GeForce GTX 560 Ti 448

Intro

Compare that to the GeForce GTX 560 Ti 448, which makes use of a 40 nm design. nVidia has clocked the core speed at 732 MHz. The GDDR5 RAM runs at a speed of 900 MHz on this card. It features 448 SPUs as well as 56 TAUs and 40 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 240 GDDR5 1GB		70 Watts
GeForce GTX 560 Ti 448		210 Watts
	Difference: 140 Watts (200%)

Memory Bandwidth

In theory, the GeForce GTX 560 Ti 448 should be 165% quicker than the GeForce GT 240 GDDR5 1GB overall, because of its higher data rate. (explain)

GeForce GTX 560 Ti 448		144000 MB/sec
GeForce GT 240 GDDR5 1GB		54400 MB/sec
	Difference: 89600 (165%)

Texel Rate

The GeForce GTX 560 Ti 448 is a lot (approximately 133%) better at AF than the GeForce GT 240 GDDR5 1GB. (explain)

GeForce GTX 560 Ti 448		40992 Mtexels/sec
GeForce GT 240 GDDR5 1GB		17600 Mtexels/sec
	Difference: 23392 (133%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce GTX 560 Ti 448 is superior to the GeForce GT 240 GDDR5 1GB, and very much so. (explain)

GeForce GTX 560 Ti 448		29280 Mpixels/sec
GeForce GT 240 GDDR5 1GB		4400 Mpixels/sec
	Difference: 24880 (565%)

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 largest amount of data (measured in MB per second) that can be transferred across the external memory interface in a second. It is worked out by multiplying the card's bus width by the speed of its memory. In the case of DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the card's 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 number of texture map elements (texels) that can be applied in one second. This is worked out by multiplying the total number of texture units by the core speed of the chip. The higher this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Raster Operations Pipelines by the the card's 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 lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.