GeForce GTS 450 1GB vs GeForce GTX 560 Ti

Intro

Compare all of that to the GeForce GTX 560 Ti, which comes with GPU core speed of 822 MHz, and 1024 MB of GDDR5 RAM running at 1002 MHz through a 256-bit bus. It also is comprised of 384 SPUs, 64 TAUs, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTS 450 1GB		106 Watts
GeForce GTX 560 Ti		170 Watts
	Difference: 64 Watts (60%)

Memory Bandwidth

Performance-wise, the GeForce GTX 560 Ti should theoretically be much better than the GeForce GTS 450 1GB overall. (explain)

GeForce GTX 560 Ti		128256 MB/sec
GeForce GTS 450 1GB		57728 MB/sec
	Difference: 70528 (122%)

Texel Rate

The GeForce GTX 560 Ti is a lot (about 110%) more effective at anisotropic filtering than the GeForce GTS 450 1GB. (explain)

GeForce GTX 560 Ti		52608 Mtexels/sec
GeForce GTS 450 1GB		25056 Mtexels/sec
	Difference: 27552 (110%)

Pixel Rate

The GeForce GTX 560 Ti should be much (approximately 110%) faster with regards to anti-aliasing than the GeForce GTS 450 1GB, and should be able to handle higher resolutions without slowing down too much. (explain)

GeForce GTX 560 Ti		26304 Mpixels/sec
GeForce GTS 450 1GB		12528 Mpixels/sec
	Difference: 13776 (110%)

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 maximum amount of information (counted in megabytes 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 its memory speed. If it uses DDR memory, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed per second. This is worked out by multiplying the total number of texture units by the core speed of the chip. The higher this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly record to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.