GeForce 9800 GT 1GB vs GeForce GTX 550 Ti

Intro

Compare those specifications to the GeForce GTX 550 Ti, which has a clock frequency of 900 MHz and a GDDR5 memory speed of 1026 MHz. It also uses a 192-bit bus, and uses a 40 nm design. It features 192 SPUs, 32 TAUs, and 24 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 9800 GT 1GB		105 Watts
GeForce GTX 550 Ti		116 Watts
	Difference: 11 Watts (10%)

Memory Bandwidth

Performance-wise, the GeForce GTX 550 Ti should in theory be much superior to the GeForce 9800 GT 1GB overall. (explain)

GeForce GTX 550 Ti		98496 MB/sec
GeForce 9800 GT 1GB		57600 MB/sec
	Difference: 40896 (71%)

Texel Rate

The GeForce 9800 GT 1GB will be a small bit (approximately 17%) faster with regards to AF than the GeForce GTX 550 Ti. (explain)

GeForce 9800 GT 1GB		33600 Mtexels/sec
GeForce GTX 550 Ti		28800 Mtexels/sec
	Difference: 4800 (17%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce GTX 550 Ti is superior to the GeForce 9800 GT 1GB, by far. (explain)

GeForce GTX 550 Ti		21600 Mpixels/sec
GeForce 9800 GT 1GB		9600 Mpixels/sec
	Difference: 12000 (125%)

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 data (measured in megabytes per second) that can be transferred over the external memory interface in one second. It is calculated by multiplying the card's bus width by the speed of its memory. In the case of DDR type RAM, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better 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 are processed per second. This figure is calculated by multiplying the total amount of texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly record to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.