GeForce GT 130 vs GeForce GTX 860M

Intro

Compare all that to the GeForce GTX 860M, which uses a 28 nm design. nVidia has clocked the core speed at 797 MHz. The GDDR5 RAM runs at a speed of 1000 MHz on this model. It features 1152 SPUs along with 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 130		75 Watts
	Difference: 30 Watts (67%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 860M is 433% quicker than the GeForce GT 130 overall, because of its greater bandwidth. (explain)

GeForce GTX 860M		64000 MB/sec
GeForce GT 130		12000 MB/sec
	Difference: 52000 (433%)

Texel Rate

The GeForce GTX 860M will be a lot (approximately 538%) better at AF than the GeForce GT 130. (explain)

GeForce GTX 860M		76512 Mtexels/sec
GeForce GT 130		12000 Mtexels/sec
	Difference: 64512 (538%)

Pixel Rate

The GeForce GTX 860M is much (more or less 59%) better at anti-aliasing than the GeForce GT 130, and also will be able to handle higher resolutions without losing too much performance. (explain)

GeForce GTX 860M		12752 Mpixels/sec
GeForce GT 130		8000 Mpixels/sec
	Difference: 4752 (59%)

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 largest amount of data (counted in MB per second) that can be transported over the external memory interface within a second. It is worked out by multiplying the card's interface width by the speed of its memory. In the case of DDR RAM, it should be multiplied by 2 again. If 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 can be processed in one second. This number is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The better the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly record to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.