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GeForce GT 130 vs Geforce GTX 680

Intro

The GeForce GT 130 uses a 55 nm design. nVidia has set the core frequency at 500 MHz. The DDR2 memory is set to run at a frequency of 250 MHz on this specific model. It features 48 SPUs along with 24 Texture Address Units and 16 ROPs.

Compare all that to the Geforce GTX 680, which features a clock frequency of 1006 MHz and a GDDR5 memory frequency of 1502 MHz. It also makes use of a 256-bit bus, and uses a 28 nm design. It is comprised of 1536 SPUs, 128 Texture Address Units, and 32 ROPs.

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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 should be 1502% quicker than the GeForce GT 130 in general, because of its greater bandwidth. (explain)

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

Texel Rate

The Geforce GTX 680 is a lot (more or less 973%) more effective at texture filtering than the GeForce GT 130. (explain)

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

Pixel Rate

If using a high screen resolution is important to you, then the Geforce GTX 680 is the winner, by a large margin. (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

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GeForce GT 130

Amazon.com

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Geforce GTX 680

Amazon.com

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Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

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Model GeForce GT 130 Geforce GTX 680
Manufacturer nVidia nVidia
Year March 10, 2009 March 2012
Code Name G94b GK104
Memory 768 MB 2048 MB
Core Speed 500 MHz 1006 MHz
Memory Speed 500 MHz 6008 MHz
Power (Max TDP) 75 watts 195 watts
Bandwidth 12000 MB/sec 192256 MB/sec
Texel Rate 12000 Mtexels/sec 128768 Mtexels/sec
Pixel Rate 8000 Mpixels/sec 32192 Mpixels/sec
Unified Shaders 48 1536
Texture Mapping Units 24 128
Render Output Units 16 32
Bus Type DDR2 GDDR5
Bus Width 192-bit 256-bit
Fab Process 55 nm 28 nm
Transistors 505 million 3540 million
Bus PCIe x16 2.0 PCIe 3.0 x16
DirectX Version DirectX 10 DirectX 11.0
OpenGL Version OpenGL 3.0 OpenGL 4.2

Memory Bandwidth: Memory bandwidth is the largest amount of information (counted in MB per second) that can be transferred across the external memory interface within a second. The number is worked out by multiplying the card's interface width by the speed of its memory. In the case of DDR type memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the bandwidth is, the faster 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 are processed in one second. This is worked out by multiplying the total number of texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.

Display Prices

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GeForce GT 130

Amazon.com

Check prices at:

Geforce GTX 680

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

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