GeForce GTX 560 Ti vs Radeon HD 5670

Intro

Compare those specs to the Radeon HD 5670, which has GPU clock speed of 775 MHz, and 1024 MB of GDDR5 memory running at 1000 MHz through a 128-bit bus. It also is comprised of 400(80x5) Stream Processors, 20 Texture Address Units, 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		170 Watts
	Difference: 109 Watts (179%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 560 Ti should in theory be quite a bit better than the Radeon HD 5670 overall. (explain)

GeForce GTX 560 Ti		128256 MB/sec
Radeon HD 5670		64000 MB/sec
	Difference: 64256 (100%)

Texel Rate

The GeForce GTX 560 Ti will be a lot (approximately 239%) faster with regards to AF than the Radeon HD 5670. (explain)

GeForce GTX 560 Ti		52608 Mtexels/sec
Radeon HD 5670		15500 Mtexels/sec
	Difference: 37108 (239%)

Pixel Rate

The GeForce GTX 560 Ti should be quite a bit (about 324%) better at AA than the Radeon HD 5670, and also should be able to handle higher screen resolutions better. (explain)

GeForce GTX 560 Ti		26304 Mpixels/sec
Radeon HD 5670		6200 Mpixels/sec
	Difference: 20104 (324%)

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

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

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly write to the local memory in one second - measured in millions of pixels per second. The figure is worked out 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 fill rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.