GeForce GT 340 vs GeForce GT 430 1GB

Intro

Compare those specifications to the GeForce GT 430 1GB, which has GPU clock speed of 700 MHz, and 1024 MB of GDDR3 RAM running at 900 MHz through a 128-bit bus. It also is made up of 96 SPUs, 16 Texture Address Units, 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

The GeForce GT 340 should in theory be much 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 will be a lot (approximately 57%) more effective at AF 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

If running with lots of anti-aliasing is important to you, then the GeForce GT 340 is the winner, by far. (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 maximum amount of information (counted in MB per second) that can be transported across the external memory interface in one second. It is worked out by multiplying the card's bus width by the speed of its memory. If the card has DDR type memory, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster 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 per second. This is calculated by multiplying the total texture units by the core speed of the chip. The better the texel rate, the better the graphics 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 most pixels the graphics card could possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.