GeForce GTX 560 vs Radeon HD 5670

Intro

Compare all of that to the Radeon HD 5670, which has core clock speeds of 775 MHz on the GPU, and 1000 MHz on the 1024 MB of GDDR5 RAM. It features 400(80x5) SPUs along with 20 TAUs and 8 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5670		61 Watts
GeForce GTX 560		150 Watts
	Difference: 89 Watts (146%)

Memory Bandwidth

In theory, the GeForce GTX 560 should perform much faster than the Radeon HD 5670 overall. (explain)

GeForce GTX 560		128128 MB/sec
Radeon HD 5670		64000 MB/sec
	Difference: 64128 (100%)

Texel Rate

The GeForce GTX 560 should be much (approximately 193%) faster with regards to AF than the Radeon HD 5670. (explain)

GeForce GTX 560		45360 Mtexels/sec
Radeon HD 5670		15500 Mtexels/sec
	Difference: 29860 (193%)

Pixel Rate

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

GeForce GTX 560		25920 Mpixels/sec
Radeon HD 5670		6200 Mpixels/sec
	Difference: 19720 (318%)

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 (measured in megabytes per second) that can be transferred over the external memory interface within a second. It's worked out by multiplying the bus width by its memory speed. If the card has DDR type RAM, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed in one second. This is worked out by multiplying the total amount of texture units of the card by the core clock speed of the chip. The better this number, the better the 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 amount of pixels that the graphics chip could possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Render Output Units 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 also depends on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.