GeForce 8800 GS vs GeForce GT 340

Intro

Compare those specifications to the GeForce GT 340, which has GPU clock speed of 550 MHz, and 512 MB of GDDR5 memory set to run at 850 MHz through a 128-bit bus. It also is comprised of 96 SPUs, 32 TAUs, and 8 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 340		69 Watts
GeForce 8800 GS		105 Watts
	Difference: 36 Watts (52%)

Memory Bandwidth

The GeForce GT 340 should in theory perform a lot faster than the GeForce 8800 GS overall. (explain)

GeForce GT 340		54400 MB/sec
GeForce 8800 GS		38400 MB/sec
	Difference: 16000 (42%)

Texel Rate

The GeForce 8800 GS should be much (more or less 50%) faster with regards to anisotropic filtering than the GeForce GT 340. (explain)

GeForce 8800 GS		26400 Mtexels/sec
GeForce GT 340		17600 Mtexels/sec
	Difference: 8800 (50%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce 8800 GS is the winner, by far. (explain)

GeForce 8800 GS		6600 Mpixels/sec
GeForce GT 340		4400 Mpixels/sec
	Difference: 2200 (50%)

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 largest amount of data (counted in megabytes per second) that can be moved over the external memory interface within a second. It is calculated by multiplying the interface width by its memory clock speed. In the case of DDR memory, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly write to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.