GeForce GT 130 vs Geforce GTX 680

Intro

Compare those specifications to the Geforce GTX 680, which features core clock speeds of 1006 MHz on the GPU, and 1502 MHz on the 2048 MB of GDDR5 memory. It features 1536 SPUs along with 128 Texture Address Units and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 130		75 Watts
Geforce GTX 680		195 Watts
	Difference: 120 Watts (160%)

Memory Bandwidth

In theory, the Geforce GTX 680 will be 1502% quicker than the GeForce GT 130 in general, because of its higher bandwidth. (explain)

Geforce GTX 680		192256 MB/sec
GeForce GT 130		12000 MB/sec
	Difference: 180256 (1502%)

Texel Rate

The Geforce GTX 680 should be quite a bit (more or less 973%) better at AF than the GeForce GT 130. (explain)

Geforce GTX 680		128768 Mtexels/sec
GeForce GT 130		12000 Mtexels/sec
	Difference: 116768 (973%)

Pixel Rate

The Geforce GTX 680 should be a lot (about 302%) faster with regards to anti-aliasing than the GeForce GT 130, and will be capable of handling higher screen resolutions better. (explain)

Geforce GTX 680		32192 Mpixels/sec
GeForce GT 130		8000 Mpixels/sec
	Difference: 24192 (302%)

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 (counted in MB per second) that can be moved over the external memory interface in a second. It is calculated by multiplying the card's interface width by the speed of its memory. If the card has DDR RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's 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 processed per second. This number is calculated by multiplying the total number of texture units by the core clock speed of the chip. The better the texel rate, the better the graphics 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 graphics card can possibly record to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.