GeForce GT 240 GDDR5 1GB vs GeForce GTX 860M

Intro

Compare all of that to the GeForce GTX 860M, which uses a 28 nm design. nVidia has clocked the core frequency at 797 MHz. The GDDR5 memory works at a frequency of 1000 MHz on this specific model. It features 1152 SPUs as well as 96 Texture Address Units and 16 Rasterization Operator Units.

Display Graphs

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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

As far as performance goes, the GeForce GTX 860M should theoretically be a small bit better 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 should be a lot (approximately 335%) faster with regards to AF 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 screen resolution is important to you, then the GeForce GTX 860M is a better choice, by far. (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: Memory bandwidth is the maximum amount of information (counted in MB per second) that can be transferred over the external memory interface in a second. It is worked out by multiplying the card's bus width by its memory clock speed. If it uses DDR type memory, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied per second. This is calculated by multiplying the total number of texture units by the core clock speed of the chip. The higher the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly write to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - aka 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, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.