GeForce GT 130 vs GeForce GTX 660

Intro

Compare that to the GeForce GTX 660, which comes with a clock frequency of 980 MHz and a GDDR5 memory frequency of 1502 MHz. It also features a 192-bit memory bus, and uses a 28 nm design. It features 960 SPUs, 80 TAUs, and 24 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 130		75 Watts
GeForce GTX 660		140 Watts
	Difference: 65 Watts (87%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 660 should in theory be a lot better than the GeForce GT 130 overall. (explain)

GeForce GTX 660		144192 MB/sec
GeForce GT 130		12000 MB/sec
	Difference: 132192 (1102%)

Texel Rate

The GeForce GTX 660 will be much (about 553%) faster with regards to AF than the GeForce GT 130. (explain)

GeForce GTX 660		78400 Mtexels/sec
GeForce GT 130		12000 Mtexels/sec
	Difference: 66400 (553%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce GTX 660 is a better choice, by far. (explain)

GeForce GTX 660		23520 Mpixels/sec
GeForce GT 130		8000 Mpixels/sec
	Difference: 15520 (194%)

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 largest amount of information (in units of megabytes per second) that can be transferred over the external memory interface within a second. It is calculated by multiplying the interface width by its memory speed. If the card has DDR RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly write to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.