GeForce GT 430 vs Geforce GTX 690

Intro

Compare all that to the Geforce GTX 690, which makes use of a 28 nm design. nVidia has clocked the core speed at 915 MHz. The GDDR5 RAM is set to run at a frequency of 1502 MHz on this particular card. It features 1536 SPUs along with 128 Texture Address Units and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 430		60 Watts
Geforce GTX 690		300 Watts
	Difference: 240 Watts (400%)

Memory Bandwidth

In theory, the Geforce GTX 690 is 1235% faster than the GeForce GT 430 in general, due to its greater bandwidth. (explain)

Geforce GTX 690		384512 MB/sec
GeForce GT 430		28800 MB/sec
	Difference: 355712 (1235%)

Texel Rate

The Geforce GTX 690 is quite a bit (more or less 1991%) better at anisotropic filtering than the GeForce GT 430. (explain)

Geforce GTX 690		234240 Mtexels/sec
GeForce GT 430		11200 Mtexels/sec
	Difference: 223040 (1991%)

Pixel Rate

The Geforce GTX 690 is a lot (about 1991%) more effective at AA than the GeForce GT 430, and also capable of handling higher resolutions while still performing well. (explain)

Geforce GTX 690		58560 Mpixels/sec
GeForce GT 430		2800 Mpixels/sec
	Difference: 55760 (1991%)

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.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

Specifications

Memory Bandwidth: Memory bandwidth is the maximum amount of information (measured in megabytes per second) that can be transported across the external memory interface in a second. It is calculated by multiplying the bus width by the speed of its memory. If it uses DDR type memory, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, 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 worked out by multiplying the total texture units by the core clock speed of the chip. The higher the texel rate, the better the 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 maximum amount of pixels that the graphics card can possibly record to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called 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 - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.