GeForce GT 130 vs GeForce GTX 980

Intro

Compare those specifications to the GeForce GTX 980, which has a core clock frequency of 1126 MHz and a GDDR5 memory frequency of 1750 MHz. It also makes use of a 256-bit memory bus, and makes use of a 28 nm design. It features 2048 SPUs, 128 TAUs, and 64 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 130		75 Watts
GeForce GTX 980		165 Watts
	Difference: 90 Watts (120%)

Memory Bandwidth

Theoretically, the GeForce GTX 980 should perform quite a bit faster than the GeForce GT 130 overall. (explain)

GeForce GTX 980		224000 MB/sec
GeForce GT 130		12000 MB/sec
	Difference: 212000 (1767%)

Texel Rate

The GeForce GTX 980 should be much (approximately 1101%) more effective at texture filtering than the GeForce GT 130. (explain)

GeForce GTX 980		144128 Mtexels/sec
GeForce GT 130		12000 Mtexels/sec
	Difference: 132128 (1101%)

Pixel Rate

If using a high resolution is important to you, then the GeForce GTX 980 is the winner, and very much so. (explain)

GeForce GTX 980		72064 Mpixels/sec
GeForce GT 130		8000 Mpixels/sec
	Difference: 64064 (801%)

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 max amount of data (measured in megabytes per second) that can be moved past the external memory interface within a second. The number is worked out by multiplying the card's bus width by its memory clock speed. If the card has DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly write to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of Raster Operations Pipelines by the the core 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 also depends on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.