GeForce GTX 460 (OEM) 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 bus, and uses a 40 nm design. It is comprised of 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 GTX 460 (OEM)		150 Watts
	Difference: 34 Watts (29%)

Memory Bandwidth

The GeForce GTX 460 (OEM) should in theory perform a bit faster than the GeForce GTX 550 Ti in general. (explain)

GeForce GTX 460 (OEM)		108800 MB/sec
GeForce GTX 550 Ti		98496 MB/sec
	Difference: 10304 (10%)

Texel Rate

The GeForce GTX 460 (OEM) is quite a bit (approximately 26%) more effective at texture filtering than the GeForce GTX 550 Ti. (explain)

GeForce GTX 460 (OEM)		36400 Mtexels/sec
GeForce GTX 550 Ti		28800 Mtexels/sec
	Difference: 7600 (26%)

Pixel Rate

The GeForce GTX 550 Ti will be just a bit (more or less 4%) better at AA than the GeForce GTX 460 (OEM), and will be capable of handling higher resolutions without losing too much performance. (explain)

GeForce GTX 550 Ti		21600 Mpixels/sec
GeForce GTX 460 (OEM)		20800 Mpixels/sec
	Difference: 800 (4%)

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 max amount of data (measured in megabytes per second) that can be transferred across the external memory interface within a second. It is calculated by multiplying the card's interface width by its memory clock speed. In the case of DDR type RAM, the result 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 AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be 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 video 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 number of pixels that the graphics chip could possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of colour 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 also depends on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.