GeForce 8800 GTX vs GeForce GTX 550 Ti

Intro

Compare those specs to the GeForce GTX 550 Ti, which has a clock frequency of 900 MHz and a GDDR5 memory frequency of 1026 MHz. It also makes use of a 192-bit memory bus, and makes use of a 40 nm design. It features 192 SPUs, 32 Texture Address Units, and 24 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 550 Ti		116 Watts
GeForce 8800 GTX		155 Watts
	Difference: 39 Watts (34%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 550 Ti should be a little bit faster than the GeForce 8800 GTX in general. (explain)

GeForce GTX 550 Ti		98496 MB/sec
GeForce 8800 GTX		86400 MB/sec
	Difference: 12096 (14%)

Texel Rate

The GeForce 8800 GTX should be quite a bit (approximately 28%) more effective at AF than the GeForce GTX 550 Ti. (explain)

GeForce 8800 GTX		36800 Mtexels/sec
GeForce GTX 550 Ti		28800 Mtexels/sec
	Difference: 8000 (28%)

Pixel Rate

If using a high screen resolution is important to you, then the GeForce GTX 550 Ti is superior to the GeForce 8800 GTX, and very much so. (explain)

GeForce GTX 550 Ti		21600 Mpixels/sec
GeForce 8800 GTX		13800 Mpixels/sec
	Difference: 7800 (57%)

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 max amount of information (in units of megabytes per second) that can be transferred past the external memory interface in a second. It's calculated by multiplying the interface width by its memory clock speed. If it uses DDR RAM, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster 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 are applied in one 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 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 could possibly record to its 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 clock 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 also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.