GeForce GTX 580 vs Radeon HD 5670

Intro

Compare all that to the Radeon HD 5670, which makes use of a 40 nm design. AMD has set the core frequency at 775 MHz. The GDDR5 memory runs at a speed of 1000 MHz on this particular model. It features 400(80x5) SPUs along with 20 Texture Address Units and 8 Rasterization Operator 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

The GeForce GTX 580 should in theory be a lot faster than the Radeon HD 5670 in general. (explain)

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

Texel Rate

The GeForce GTX 580 should be much (about 219%) faster with regards to 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 is quite a bit (about 498%) more effective at AA than the Radeon HD 5670, and also should be able to handle 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 largest amount of data (counted in MB per second) that can be moved over the external memory interface within a second. It's worked out by multiplying the interface width by its memory clock speed. If it uses DDR type RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly record to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of ROPs 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 output rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.