GeForce GT 240 GDDR5 vs GeForce GTX 960

Intro

Compare those specs to the GeForce GTX 960, which comes with GPU clock speed of 1127 MHz, and 2048 MB of GDDR5 memory set to run at 1750 MHz through a 128-bit bus. It also features 1024 Stream Processors, 64 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 240 GDDR5		70 Watts
GeForce GTX 960		120 Watts
	Difference: 50 Watts (71%)

Memory Bandwidth

Performance-wise, the GeForce GTX 960 should theoretically be much better than the GeForce GT 240 GDDR5 overall. (explain)

GeForce GTX 960		112000 MB/sec
GeForce GT 240 GDDR5		54400 MB/sec
	Difference: 57600 (106%)

Texel Rate

The GeForce GTX 960 is quite a bit (approximately 310%) more effective at texture filtering than the GeForce GT 240 GDDR5. (explain)

GeForce GTX 960		72128 Mtexels/sec
GeForce GT 240 GDDR5		17600 Mtexels/sec
	Difference: 54528 (310%)

Pixel Rate

If running with a high resolution is important to you, then the GeForce GTX 960 is superior to the GeForce GT 240 GDDR5, by a large margin. (explain)

GeForce GTX 960		36064 Mpixels/sec
GeForce GT 240 GDDR5		4400 Mpixels/sec
	Difference: 31664 (720%)

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 maximum amount of data (in units of megabytes per second) that can be transported across the external memory interface in one second. It is calculated by multiplying the interface width by its memory clock speed. If the card has DDR memory, it must be multiplied by 2 once again. If 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 high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied in one second. This is calculated by multiplying the total number of texture units of the card by the core clock speed of the chip. The better this number, the better the video 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 the local memory in a second - measured in millions of pixels per second. The figure is worked out 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 outputting the pixels (image) to the screen. The actual pixel rate also depends on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.