GeForce GT 430 vs GeForce GTX 660

Intro

Compare all of that to the GeForce GTX 660, which has GPU core speed of 980 MHz, and 2048 MB of GDDR5 RAM set to run at 1502 MHz through a 192-bit bus. It also is comprised of 960 Stream Processors, 80 Texture Address Units, and 24 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 430		60 Watts
GeForce GTX 660		140 Watts
	Difference: 80 Watts (133%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 660 should theoretically be a lot better than the GeForce GT 430 in general. (explain)

GeForce GTX 660		144192 MB/sec
GeForce GT 430		28800 MB/sec
	Difference: 115392 (401%)

Texel Rate

The GeForce GTX 660 should be much (about 600%) better at texture filtering than the GeForce GT 430. (explain)

GeForce GTX 660		78400 Mtexels/sec
GeForce GT 430		11200 Mtexels/sec
	Difference: 67200 (600%)

Pixel Rate

The GeForce GTX 660 should be a lot (more or less 740%) faster with regards to FSAA than the GeForce GT 430, and able to handle higher screen resolutions without slowing down too much. (explain)

GeForce GTX 660		23520 Mpixels/sec
GeForce GT 430		2800 Mpixels/sec
	Difference: 20720 (740%)

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 maximum amount of information (counted in MB per second) that can be transported across the external memory interface in one second. It's worked out by multiplying the card's interface width by its memory speed. In the case of DDR memory, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels the video card could possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of colour ROPs by the the core speed of the card. 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 many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.