GeForce GTX 280 vs GeForce GTX 560 Ti 448

Intro

Compare those specs to the GeForce GTX 560 Ti 448, which comes with GPU core speed of 732 MHz, and 1280 MB of GDDR5 RAM set to run at 900 MHz through a 320-bit bus. It also features 448 Stream Processors, 56 Texture Address Units, and 40 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 560 Ti 448		210 Watts
GeForce GTX 280		236 Watts
	Difference: 26 Watts (12%)

Memory Bandwidth

In theory, the GeForce GTX 560 Ti 448 is 2% faster than the GeForce GTX 280 in general, because of its higher bandwidth. (explain)

GeForce GTX 560 Ti 448		144000 MB/sec
GeForce GTX 280		141696 MB/sec
	Difference: 2304 (2%)

Texel Rate

The GeForce GTX 280 should be a small bit (more or less 17%) faster with regards to anisotropic filtering than the GeForce GTX 560 Ti 448. (explain)

GeForce GTX 280		48160 Mtexels/sec
GeForce GTX 560 Ti 448		40992 Mtexels/sec
	Difference: 7168 (17%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce GTX 560 Ti 448 is a better choice, by far. (explain)

GeForce GTX 560 Ti 448		29280 Mpixels/sec
GeForce GTX 280		19264 Mpixels/sec
	Difference: 10016 (52%)

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 (in units of megabytes per second) that can be transferred past the external memory interface in one second. It is calculated by multiplying the card's bus width by its memory clock speed. In the case of DDR type memory, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster 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 amount of texture map elements (texels) that are applied in one second. This number is worked out by multiplying the total texture units by the core clock speed of the chip. The better 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 a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly record to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.