GeForce GTX 580 vs Radeon HD 6750 1GB

Intro

Compare all of that to the Radeon HD 6750 1GB, which has a core clock frequency of 725 MHz and a GDDR5 memory speed of 1000 MHz. It also makes use of a 128-bit bus, and uses a 40 nm design. It features 720 SPUs, 36 TAUs, and 16 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6750 1GB		86 Watts
GeForce GTX 580		244 Watts
	Difference: 158 Watts (184%)

Memory Bandwidth

The GeForce GTX 580 should theoretically be a lot faster than the Radeon HD 6750 1GB in general. (explain)

GeForce GTX 580		192384 MB/sec
Radeon HD 6750 1GB		64000 MB/sec
	Difference: 128384 (201%)

Texel Rate

The GeForce GTX 580 is quite a bit (about 89%) faster with regards to texture filtering than the Radeon HD 6750 1GB. (explain)

GeForce GTX 580		49408 Mtexels/sec
Radeon HD 6750 1GB		26100 Mtexels/sec
	Difference: 23308 (89%)

Pixel Rate

The GeForce GTX 580 should be much (more or less 219%) better at full screen anti-aliasing than the Radeon HD 6750 1GB, and will be able to handle higher resolutions without slowing down too much. (explain)

GeForce GTX 580		37056 Mpixels/sec
Radeon HD 6750 1GB		11600 Mpixels/sec
	Difference: 25456 (219%)

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 MB per second) that can be moved across the external memory interface in a second. It's worked out by multiplying the interface width by the speed of its memory. If the card has DDR type memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied in one second. This number is calculated 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 handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly write to the local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.