GeForce GT 340 vs GeForce GTX 860M

Intro

Compare all of that to the GeForce GTX 860M, which makes use of a 28 nm design. nVidia has set the core speed 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

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 860M		45 Watts
GeForce GT 340		69 Watts
	Difference: 24 Watts (53%)

Memory Bandwidth

The GeForce GTX 860M should in theory be a little bit faster than the GeForce GT 340 in general. (explain)

GeForce GTX 860M		64000 MB/sec
GeForce GT 340		54400 MB/sec
	Difference: 9600 (18%)

Texel Rate

The GeForce GTX 860M should be a lot (about 335%) faster with regards to AF than the GeForce GT 340. (explain)

GeForce GTX 860M		76512 Mtexels/sec
GeForce GT 340		17600 Mtexels/sec
	Difference: 58912 (335%)

Pixel Rate

The GeForce GTX 860M should be much (more or less 190%) more effective at anti-aliasing than the GeForce GT 340, and also will be able to handle higher screen resolutions without slowing down too much. (explain)

GeForce GTX 860M		12752 Mpixels/sec
GeForce GT 340		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 maximum amount of information (counted in megabytes per second) that can be transferred past the external memory interface in a second. The number is worked out by multiplying the card's interface width by its memory speed. In the case of DDR memory, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the bandwidth is, 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 texture map elements (texels) that are applied per second. This figure is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The better this number, the better the graphics 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 the local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.