GeForce 9500 GT DDR2 vs GeForce GTX 550 Ti

Intro

Compare those specs to the GeForce GTX 550 Ti, which comes with GPU core speed of 900 MHz, and 1024 MB of GDDR5 RAM running at 1026 MHz through a 192-bit bus. It also is made up of 192 Stream Processors, 32 Texture Address Units, and 24 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 9500 GT DDR2		50 Watts
GeForce GTX 550 Ti		116 Watts
	Difference: 66 Watts (132%)

Memory Bandwidth

The GeForce GTX 550 Ti should in theory perform quite a bit faster than the GeForce 9500 GT DDR2 overall. (explain)

GeForce GTX 550 Ti		98496 MB/sec
GeForce 9500 GT DDR2		16000 MB/sec
	Difference: 82496 (516%)

Texel Rate

The GeForce GTX 550 Ti should be much (more or less 227%) more effective at AF than the GeForce 9500 GT DDR2. (explain)

GeForce GTX 550 Ti		28800 Mtexels/sec
GeForce 9500 GT DDR2		8800 Mtexels/sec
	Difference: 20000 (227%)

Pixel Rate

The GeForce GTX 550 Ti is quite a bit (more or less 391%) more effective at anti-aliasing than the GeForce 9500 GT DDR2, and also able to handle higher screen resolutions better. (explain)

GeForce GTX 550 Ti		21600 Mpixels/sec
GeForce 9500 GT DDR2		4400 Mpixels/sec
	Difference: 17200 (391%)

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 largest amount of data (counted in MB per second) that can be transferred across the external memory interface in one second. The number is worked out by multiplying the card's bus width by the speed of its memory. If the card has DDR type RAM, it should be multiplied by 2 once again. If it uses 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 high 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 of the card by the core clock speed of the chip. The higher this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly write to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.