GeForce GT 130 vs GeForce GTX 750

Intro

Compare that to the GeForce GTX 750, which comes with a core clock frequency of 1020 MHz and a GDDR5 memory speed of 1250 MHz. It also features a 128-bit bus, and uses a 28 nm design. It is comprised of 512 SPUs, 32 Texture Address Units, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 750		55 Watts
GeForce GT 130		75 Watts
	Difference: 20 Watts (36%)

Memory Bandwidth

In theory, the GeForce GTX 750 is 567% faster than the GeForce GT 130 overall, due to its higher bandwidth. (explain)

GeForce GTX 750		80000 MB/sec
GeForce GT 130		12000 MB/sec
	Difference: 68000 (567%)

Texel Rate

The GeForce GTX 750 is quite a bit (about 172%) faster with regards to AF than the GeForce GT 130. (explain)

GeForce GTX 750		32640 Mtexels/sec
GeForce GT 130		12000 Mtexels/sec
	Difference: 20640 (172%)

Pixel Rate

The GeForce GTX 750 should be quite a bit (about 104%) more effective at FSAA than the GeForce GT 130, and also will be able to handle higher resolutions while still performing well. (explain)

GeForce GTX 750		16320 Mpixels/sec
GeForce GT 130		8000 Mpixels/sec
	Difference: 8320 (104%)

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 (in units of megabytes per second) that can be moved past the external memory interface within a second. It is worked out by multiplying the interface width by its memory speed. If it uses DDR type RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied per second. This is calculated by multiplying the total texture units of the card by the core speed of the chip. The higher this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the most pixels the video card can possibly record to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.