GeForce GTX 285 2GB vs GeForce GTX 560 Ti 448

Intro

Compare those specifications to the GeForce GTX 560 Ti 448, which comes with a core clock frequency of 732 MHz and a GDDR5 memory speed of 900 MHz. It also uses a 320-bit bus, and makes use of a 40 nm design. It is comprised of 448 SPUs, 56 TAUs, and 40 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 285 2GB		204 Watts
GeForce GTX 560 Ti 448		210 Watts
	Difference: 6 Watts (3%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 285 2GB is 10% faster than the GeForce GTX 560 Ti 448 in general, due to its greater data rate. (explain)

GeForce GTX 285 2GB		158976 MB/sec
GeForce GTX 560 Ti 448		144000 MB/sec
	Difference: 14976 (10%)

Texel Rate

The GeForce GTX 285 2GB will be much (more or less 26%) more effective at texture filtering than the GeForce GTX 560 Ti 448. (explain)

GeForce GTX 285 2GB		51840 Mtexels/sec
GeForce GTX 560 Ti 448		40992 Mtexels/sec
	Difference: 10848 (26%)

Pixel Rate

The GeForce GTX 560 Ti 448 should be a lot (approximately 41%) better at FSAA than the GeForce GTX 285 2GB, and should be capable of handling higher screen resolutions more effectively. (explain)

GeForce GTX 560 Ti 448		29280 Mpixels/sec
GeForce GTX 285 2GB		20736 Mpixels/sec
	Difference: 8544 (41%)

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 data (measured in megabytes per second) that can be transported over the external memory interface in one second. It is worked out by multiplying the card's interface width by the speed of its memory. If it uses DDR type RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

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