GeForce GT 340 vs GeForce GT 430 1GB

Intro

Compare those specs to the GeForce GT 430 1GB, which features a GPU core clock speed of 700 MHz, and 1024 MB of GDDR3 memory set to run at 900 MHz through a 128-bit bus. It also is made up of 96 SPUs, 16 TAUs, and 4 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 430 1GB		60 Watts
GeForce GT 340		69 Watts
	Difference: 9 Watts (15%)

Memory Bandwidth

Theoretically, the GeForce GT 340 should perform quite a bit faster than the GeForce GT 430 1GB overall. (explain)

GeForce GT 340		54400 MB/sec
GeForce GT 430 1GB		28800 MB/sec
	Difference: 25600 (89%)

Texel Rate

The GeForce GT 340 should be quite a bit (more or less 57%) more effective at texture filtering than the GeForce GT 430 1GB. (explain)

GeForce GT 340		17600 Mtexels/sec
GeForce GT 430 1GB		11200 Mtexels/sec
	Difference: 6400 (57%)

Pixel Rate

The GeForce GT 340 is a lot (approximately 57%) more effective at anti-aliasing than the GeForce GT 430 1GB, and also able to handle higher resolutions while still performing well. (explain)

GeForce GT 340		4400 Mpixels/sec
GeForce GT 430 1GB		2800 Mpixels/sec
	Difference: 1600 (57%)

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 (counted in MB per second) that can be moved past the external memory interface within a second. The number is worked out by multiplying the interface width by the speed of its memory. If it uses DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the card's 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 texture map elements (texels) that are applied per second. This is worked out by multiplying the total amount of texture units of the card by the core speed of the chip. The higher the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels 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 colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.