GeForce GTX 580 vs Radeon HD 5670

Intro

Compare that to the Radeon HD 5670, which comes with a core clock frequency of 775 MHz and a GDDR5 memory frequency of 1000 MHz. It also makes use of a 128-bit memory bus, and makes use of a 40 nm design. It is comprised of 400(80x5) SPUs, 20 Texture Address Units, and 8 Raster Operation Units.

Display Graphs

Hide Graphs

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

In theory, the GeForce GTX 580 should be 201% quicker than the Radeon HD 5670 overall, because of its higher bandwidth. (explain)

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

Texel Rate

The GeForce GTX 580 should be quite a bit (about 219%) more effective at anisotropic filtering 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 will be much (approximately 498%) better at FSAA than the Radeon HD 5670, and should be capable of handling higher screen resolutions more effectively. (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: Memory bandwidth is the maximum amount of data (measured in MB per second) that can be transported past the external memory interface within a second. It is worked out by multiplying the card's interface width by the speed of its memory. If it uses DDR type RAM, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, 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 amount of texture map elements (texels) that are applied in one second. This is worked out by multiplying the total 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 in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could 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 Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.