GeForce 8800 GT 1GB vs GeForce GT 340

Intro

Compare those specs to the GeForce GT 340, which has a core clock speed of 550 MHz and a GDDR5 memory frequency of 850 MHz. It also features a 128-bit memory bus, and uses a 40 nm design. It is comprised of 96 SPUs, 32 TAUs, and 8 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 340		69 Watts
GeForce 8800 GT 1GB		105 Watts
	Difference: 36 Watts (52%)

Memory Bandwidth

The GeForce 8800 GT 1GB should theoretically perform a bit faster than the GeForce GT 340 in general. (explain)

GeForce 8800 GT 1GB		57600 MB/sec
GeForce GT 340		54400 MB/sec
	Difference: 3200 (6%)

Texel Rate

The GeForce 8800 GT 1GB will be much (approximately 91%) faster with regards to AF than the GeForce GT 340. (explain)

GeForce 8800 GT 1GB		33600 Mtexels/sec
GeForce GT 340		17600 Mtexels/sec
	Difference: 16000 (91%)

Pixel Rate

The GeForce 8800 GT 1GB should be much (more or less 118%) faster with regards to FSAA than the GeForce GT 340, and able to handle higher resolutions without losing too much performance. (explain)

GeForce 8800 GT 1GB		9600 Mpixels/sec
GeForce GT 340		4400 Mpixels/sec
	Difference: 5200 (118%)

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 maximum amount of information (counted in megabytes per second) that can be moved past the external memory interface within a second. It is worked out by multiplying the interface width by its memory speed. If it uses DDR memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed per second. This figure is worked out by multiplying the total number of texture units of the card by the core clock 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 in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly write to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number 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 fill rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.