GeForce GT 430 1GB vs Geforce GTX 690

Intro

Compare those specifications to the Geforce GTX 690, which has a clock speed of 915 MHz and a GDDR5 memory frequency of 1502 MHz. It also makes use of a 256-bit memory bus, and makes use of a 28 nm design. It is made up of 1536 SPUs, 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 1GB		60 Watts
Geforce GTX 690		300 Watts
	Difference: 240 Watts (400%)

Memory Bandwidth

In theory, the Geforce GTX 690 will be 1235% quicker than the GeForce GT 430 1GB in general, because of its greater data rate. (explain)

Geforce GTX 690		384512 MB/sec
GeForce GT 430 1GB		28800 MB/sec
	Difference: 355712 (1235%)

Texel Rate

The Geforce GTX 690 should be much (approximately 1991%) faster with regards to texture filtering than the GeForce GT 430 1GB. (explain)

Geforce GTX 690		234240 Mtexels/sec
GeForce GT 430 1GB		11200 Mtexels/sec
	Difference: 223040 (1991%)

Pixel Rate

The Geforce GTX 690 is a lot (approximately 1991%) more effective at AA than the GeForce GT 430 1GB, and should be capable of handling higher resolutions better. (explain)

Geforce GTX 690		58560 Mpixels/sec
GeForce GT 430 1GB		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 data (in units of MB per second) that can be transferred across the external memory interface in a second. The number is worked out by multiplying the card's bus width by its memory speed. In the case of DDR memory, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, 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 number of texture map elements (texels) that can be processed per second. This number is calculated by multiplying the total amount of texture units of the card by the core clock speed of the chip. The better this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly record to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on 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 potential to reach the maximum fill rate.