GeForce 8800 GTS (G92) vs GeForce GT 340

Intro

Compare those specifications to the GeForce GT 340, which features a clock frequency of 550 MHz and a GDDR5 memory speed of 850 MHz. It also uses a 128-bit memory bus, and uses a 40 nm design. It is made up 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 GTS (G92)		135 Watts
	Difference: 66 Watts (96%)

Memory Bandwidth

Theoretically speaking, the GeForce 8800 GTS (G92) will be 14% faster than the GeForce GT 340 overall, due to its higher data rate. (explain)

GeForce 8800 GTS (G92)		62080 MB/sec
GeForce GT 340		54400 MB/sec
	Difference: 7680 (14%)

Texel Rate

The GeForce 8800 GTS (G92) should be much (about 136%) faster with regards to anisotropic filtering than the GeForce GT 340. (explain)

GeForce 8800 GTS (G92)		41600 Mtexels/sec
GeForce GT 340		17600 Mtexels/sec
	Difference: 24000 (136%)

Pixel Rate

The GeForce 8800 GTS (G92) should be a lot (about 136%) better at AA than the GeForce GT 340, and will be able to handle higher resolutions while still performing well. (explain)

GeForce 8800 GTS (G92)		10400 Mpixels/sec
GeForce GT 340		4400 Mpixels/sec
	Difference: 6000 (136%)

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 MB per second) that can be moved across the external memory interface within a second. The number is calculated by multiplying the card's interface width by its memory speed. If the card has DDR memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the card's 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 amount of texture map elements (texels) that are applied per second. This is worked out by multiplying the total texture units by the core clock speed of the chip. The higher the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly record to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.