GeForce 8800 Ultra vs GeForce GT 240 GDDR5 1GB

Intro

Compare those specifications to the GeForce GT 240 GDDR5 1GB, which comes with GPU core speed of 550 MHz, and 1024 MB of GDDR5 memory running at 850 MHz through a 128-bit bus. It also is comprised of 96 Stream Processors, 32 TAUs, and 8 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 240 GDDR5 1GB		70 Watts
GeForce 8800 Ultra		171 Watts
	Difference: 101 Watts (144%)

Memory Bandwidth

In theory, the GeForce 8800 Ultra should perform much faster than the GeForce GT 240 GDDR5 1GB in general. (explain)

GeForce 8800 Ultra		103680 MB/sec
GeForce GT 240 GDDR5 1GB		54400 MB/sec
	Difference: 49280 (91%)

Texel Rate

The GeForce 8800 Ultra should be quite a bit (about 123%) faster with regards to AF than the GeForce GT 240 GDDR5 1GB. (explain)

GeForce 8800 Ultra		39168 Mtexels/sec
GeForce GT 240 GDDR5 1GB		17600 Mtexels/sec
	Difference: 21568 (123%)

Pixel Rate

The GeForce 8800 Ultra is quite a bit (more or less 234%) faster with regards to FSAA than the GeForce GT 240 GDDR5 1GB, and also capable of handling higher resolutions without slowing down too much. (explain)

GeForce 8800 Ultra		14688 Mpixels/sec
GeForce GT 240 GDDR5 1GB		4400 Mpixels/sec
	Difference: 10288 (234%)

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 transferred over the external memory interface in one second. The number is worked out by multiplying the interface width by its memory clock speed. In the case of DDR type memory, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the 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 texture map elements (texels) that can be applied per second. This number is worked out by multiplying the total number of texture units by the core speed of the chip. The better this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video 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 amount of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.