GeForce GT 240 GDDR5 vs GeForce GTX 650 Ti

Intro

Compare those specifications to the GeForce GTX 650 Ti, which features a core clock frequency of 928 MHz and a GDDR5 memory speed of 1350 MHz. It also uses a 128-bit memory bus, and makes use of a 28 nm design. It features 768 SPUs, 64 Texture Address Units, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 240 GDDR5		70 Watts
GeForce GTX 650 Ti		110 Watts
	Difference: 40 Watts (57%)

Memory Bandwidth

Performance-wise, the GeForce GTX 650 Ti should in theory be quite a bit better than the GeForce GT 240 GDDR5 in general. (explain)

GeForce GTX 650 Ti		86400 MB/sec
GeForce GT 240 GDDR5		54400 MB/sec
	Difference: 32000 (59%)

Texel Rate

The GeForce GTX 650 Ti will be quite a bit (approximately 237%) better at AF than the GeForce GT 240 GDDR5. (explain)

GeForce GTX 650 Ti		59392 Mtexels/sec
GeForce GT 240 GDDR5		17600 Mtexels/sec
	Difference: 41792 (237%)

Pixel Rate

The GeForce GTX 650 Ti should be much (approximately 237%) better at FSAA than the GeForce GT 240 GDDR5, and also will be capable of handling higher resolutions more effectively. (explain)

GeForce GTX 650 Ti		14848 Mpixels/sec
GeForce GT 240 GDDR5		4400 Mpixels/sec
	Difference: 10448 (237%)

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 information (measured in megabytes per second) that can be transported past the external memory interface within a second. The number is calculated by multiplying the bus width by the speed of its memory. If the card has DDR type memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. 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 texture map elements (texels) that can be applied in one second. This number is calculated by multiplying the total number of texture units of the card by the core 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 in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly record to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.