GeForce GTX 560 Ti 448 vs Radeon HD 5670

Intro

Compare all of that to the Radeon HD 5670, which comes with a clock frequency of 775 MHz and a GDDR5 memory speed of 1000 MHz. It also features a 128-bit bus, and makes use of a 40 nm design. It is made up of 400(80x5) SPUs, 20 TAUs, and 8 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5670		61 Watts
GeForce GTX 560 Ti 448		210 Watts
	Difference: 149 Watts (244%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 560 Ti 448 should perform quite a bit faster than the Radeon HD 5670 in general. (explain)

GeForce GTX 560 Ti 448		144000 MB/sec
Radeon HD 5670		64000 MB/sec
	Difference: 80000 (125%)

Texel Rate

The GeForce GTX 560 Ti 448 will be quite a bit (approximately 164%) more effective at texture filtering than the Radeon HD 5670. (explain)

GeForce GTX 560 Ti 448		40992 Mtexels/sec
Radeon HD 5670		15500 Mtexels/sec
	Difference: 25492 (164%)

Pixel Rate

The GeForce GTX 560 Ti 448 is quite a bit (about 372%) better at AA than the Radeon HD 5670, and should be capable of handling higher resolutions without slowing down too much. (explain)

GeForce GTX 560 Ti 448		29280 Mpixels/sec
Radeon HD 5670		6200 Mpixels/sec
	Difference: 23080 (372%)

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 information (in units of MB per second) that can be moved past the external memory interface in a second. It is calculated by multiplying the card's interface width by the speed of its memory. If it uses DDR memory, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

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