GeForce 8800 GTS (G92) vs GeForce GT 240 GDDR5

Intro

Compare those specs 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 features 96 SPUs, 32 Texture Address Units, 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 theoretically be a bit faster than the GeForce GT 240 GDDR5 overall. (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) is quite a bit (approximately 136%) faster with regards to AF 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 lots of anti-aliasing is important to you, then the GeForce 8800 GTS (G92) is superior to the GeForce GT 240 GDDR5, by a large margin. (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: 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's calculated by multiplying the card's bus width by its memory clock speed. If it uses DDR RAM, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly record to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.