GeForce GTX 580 vs Radeon HD 5670

Intro

Compare those specifications to the Radeon HD 5670, which features a GPU core clock speed of 775 MHz, and 1024 MB of GDDR5 RAM set to run at 1000 MHz through a 128-bit bus. It also is comprised of 400(80x5) Stream Processors, 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 580		244 Watts
	Difference: 183 Watts (300%)

Memory Bandwidth

The GeForce GTX 580 should theoretically perform a lot faster than the Radeon HD 5670 overall. (explain)

GeForce GTX 580		192384 MB/sec
Radeon HD 5670		64000 MB/sec
	Difference: 128384 (201%)

Texel Rate

The GeForce GTX 580 is a lot (approximately 219%) better at AF than the Radeon HD 5670. (explain)

GeForce GTX 580		49408 Mtexels/sec
Radeon HD 5670		15500 Mtexels/sec
	Difference: 33908 (219%)

Pixel Rate

The GeForce GTX 580 should be much (about 498%) faster with regards to AA than the Radeon HD 5670, and will be able to handle higher screen resolutions while still performing well. (explain)

GeForce GTX 580		37056 Mpixels/sec
Radeon HD 5670		6200 Mpixels/sec
	Difference: 30856 (498%)

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 largest amount of information (counted in megabytes per second) that can be transported past the external memory interface within a second. It's calculated by multiplying the interface width by its memory speed. In the case of DDR type memory, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better 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 can be processed in one second. This number is worked out by multiplying the total texture units by the core speed of the chip. The better this number, 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 most pixels that the graphics card can possibly write to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of ROPs 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 fill rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.