GeForce GT 240 GDDR5 vs GeForce GTX 970

Intro

Compare that to the GeForce GTX 970, which features GPU clock speed of 1050 MHz, and 4096 MB of GDDR5 memory set to run at 1750 MHz through a 256-bit bus. It also is comprised of 1664 SPUs, 104 TAUs, and 64 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 240 GDDR5		70 Watts
GeForce GTX 970		145 Watts
	Difference: 75 Watts (107%)

Memory Bandwidth

In theory, the GeForce GTX 970 should be 312% quicker than the GeForce GT 240 GDDR5 overall, due to its greater bandwidth. (explain)

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

Texel Rate

The GeForce GTX 970 is quite a bit (approximately 520%) faster with regards to anisotropic filtering than the GeForce GT 240 GDDR5. (explain)

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

Pixel Rate

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

GeForce GTX 970		67200 Mpixels/sec
GeForce GT 240 GDDR5		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: Memory bandwidth is the maximum amount of information (measured in MB per second) that can be moved over the external memory interface in a second. It is calculated by multiplying the bus width by its memory speed. 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, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied per second. This number is calculated by multiplying the total texture units of the card by the core speed of the chip. The better the texel rate, the better the 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 most pixels that the graphics chip could possibly record to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of ROPs by the the core speed of the card. 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, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.