GeForce 8800 GTS (G80) 320MB vs GeForce GT 340 1GB

Intro

Compare all that to the GeForce GT 340 1GB, which uses a 40 nm design. nVidia has set the core speed at 550 MHz. The GDDR5 RAM works at a speed of 850 MHz on this model. It features 96 SPUs along with 32 TAUs and 8 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 340 1GB		69 Watts
GeForce 8800 GTS (G80) 320MB		143 Watts
	Difference: 74 Watts (107%)

Memory Bandwidth

Theoretically speaking, the GeForce 8800 GTS (G80) 320MB should perform a small bit faster than the GeForce GT 340 1GB in general. (explain)

GeForce 8800 GTS (G80) 320MB		63360 MB/sec
GeForce GT 340 1GB		54400 MB/sec
	Difference: 8960 (16%)

Texel Rate

The GeForce 8800 GTS (G80) 320MB is quite a bit (more or less 40%) faster with regards to AF than the GeForce GT 340 1GB. (explain)

GeForce 8800 GTS (G80) 320MB		24624 Mtexels/sec
GeForce GT 340 1GB		17600 Mtexels/sec
	Difference: 7024 (40%)

Pixel Rate

The GeForce 8800 GTS (G80) 320MB is a lot (approximately 133%) more effective at FSAA than the GeForce GT 340 1GB, and should be capable of handling higher resolutions more effectively. (explain)

GeForce 8800 GTS (G80) 320MB		10260 Mpixels/sec
GeForce GT 340 1GB		4400 Mpixels/sec
	Difference: 5860 (133%)

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 largest amount of information (counted in MB per second) that can be transferred over the external memory interface in one second. The number is calculated by multiplying the interface width by its memory clock speed. If it uses DDR type RAM, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, 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 applied per second. This figure is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The higher this number, the better the video 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 number of pixels that the graphics chip can possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.