GeForce GT 240 GDDR5 1GB vs GeForce GTX 970

Intro

Compare those specifications to the GeForce GTX 970, which comes with core clock speeds of 1050 MHz on the GPU, and 1750 MHz on the 4096 MB of GDDR5 memory. It features 1664 SPUs as well as 104 Texture Address Units and 64 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 970		145 Watts
	Difference: 75 Watts (107%)

Memory Bandwidth

The GeForce GTX 970 should in theory be much faster than the GeForce GT 240 GDDR5 1GB overall. (explain)

GeForce GTX 970		224000 MB/sec
GeForce GT 240 GDDR5 1GB		54400 MB/sec
	Difference: 169600 (312%)

Texel Rate

The GeForce GTX 970 is quite a bit (approximately 520%) better at anisotropic filtering than the GeForce GT 240 GDDR5 1GB. (explain)

GeForce GTX 970		109200 Mtexels/sec
GeForce GT 240 GDDR5 1GB		17600 Mtexels/sec
	Difference: 91600 (520%)

Pixel Rate

If using a high screen resolution is important to you, then the GeForce GTX 970 is superior to the GeForce GT 240 GDDR5 1GB, by far. (explain)

GeForce GTX 970		67200 Mpixels/sec
GeForce GT 240 GDDR5 1GB		4400 Mpixels/sec
	Difference: 62800 (1427%)

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 max amount of information (in units of megabytes per second) that can be moved across the external memory interface within a second. The number is calculated by multiplying the interface width by its memory clock speed. In the case of DDR RAM, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied per second. This number is calculated by multiplying the total amount of texture units of the card by the core clock 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 in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of ROPs 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 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 maximum fill rate.