GeForce 8800 GTS (G92) vs GeForce GT 240 GDDR5

Intro

Compare that to the GeForce GT 240 GDDR5, which features a GPU core clock speed of 550 MHz, and 512 MB of GDDR5 RAM running at 850 MHz through a 128-bit bus. It also is made up of 96 Stream Processors, 32 TAUs, and 8 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 240 GDDR5		70 Watts
GeForce 8800 GTS (G92)		135 Watts
	Difference: 65 Watts (93%)

Memory Bandwidth

The GeForce 8800 GTS (G92) should in theory be a small bit faster than the GeForce GT 240 GDDR5 in general. (explain)

GeForce 8800 GTS (G92)		62080 MB/sec
GeForce GT 240 GDDR5		54400 MB/sec
	Difference: 7680 (14%)

Texel Rate

The GeForce 8800 GTS (G92) will be much (about 136%) faster with regards to anisotropic filtering than the GeForce GT 240 GDDR5. (explain)

GeForce 8800 GTS (G92)		41600 Mtexels/sec
GeForce GT 240 GDDR5		17600 Mtexels/sec
	Difference: 24000 (136%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce 8800 GTS (G92) is the winner, and very much so. (explain)

GeForce 8800 GTS (G92)		10400 Mpixels/sec
GeForce GT 240 GDDR5		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 (in units of megabytes per second) that can be moved across the external memory interface within a second. It's worked out by multiplying the bus width by its memory clock speed. In the case of DDR type memory, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly write 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 clock speed of the card. 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 many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.