GeForce GT 240 GDDR5 1GB vs GeForce GTX 860M

Intro

Compare all that to the GeForce GTX 860M, which uses a 28 nm design. nVidia has set the core speed at 797 MHz. The GDDR5 memory is set to run at a frequency of 1000 MHz on this particular model. It features 1152 SPUs along with 96 Texture Address Units and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 860M		45 Watts
GeForce GT 240 GDDR5 1GB		70 Watts
	Difference: 25 Watts (56%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 860M should perform a bit faster than the GeForce GT 240 GDDR5 1GB in general. (explain)

GeForce GTX 860M		64000 MB/sec
GeForce GT 240 GDDR5 1GB		54400 MB/sec
	Difference: 9600 (18%)

Texel Rate

The GeForce GTX 860M is a lot (more or less 335%) better at anisotropic filtering than the GeForce GT 240 GDDR5 1GB. (explain)

GeForce GTX 860M		76512 Mtexels/sec
GeForce GT 240 GDDR5 1GB		17600 Mtexels/sec
	Difference: 58912 (335%)

Pixel Rate

If using a high resolution is important to you, then the GeForce GTX 860M is the winner, and very much so. (explain)

GeForce GTX 860M		12752 Mpixels/sec
GeForce GT 240 GDDR5 1GB		4400 Mpixels/sec
	Difference: 8352 (190%)

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 transferred past the external memory interface in one second. The number is worked out by multiplying the card's bus width by the speed of its memory. If the card has DDR memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied per second. This is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The higher the texel rate, 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 maximum amount of pixels that the graphics chip could possibly record to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant 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.