GeForce GTX 580 vs Radeon HD 6750

Intro

Compare that to the Radeon HD 6750, which comes with a core clock frequency of 725 MHz and a GDDR5 memory frequency of 1000 MHz. It also makes use of a 128-bit bus, and makes use of 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		86 Watts
GeForce GTX 580		244 Watts
	Difference: 158 Watts (184%)

Memory Bandwidth

Theoretically, the GeForce GTX 580 should perform a lot faster than the Radeon HD 6750 overall. (explain)

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

Texel Rate

The GeForce GTX 580 should be a lot (about 89%) better at texture filtering than the Radeon HD 6750. (explain)

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

Pixel Rate

The GeForce GTX 580 will be quite a bit (more or less 219%) more effective at full screen anti-aliasing than the Radeon HD 6750, and also should be able to handle higher screen resolutions while still performing well. (explain)

GeForce GTX 580		37056 Mpixels/sec
Radeon HD 6750		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: Memory bandwidth is the largest amount of data (in units of MB per second) that can be transferred over the external memory interface in a second. It's calculated by multiplying the card's interface width by its memory clock speed. In the case of DDR type memory, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, 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 texture map elements (texels) that can be processed per second. This is calculated by multiplying the total amount of texture units by the core speed of the chip. The better this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one 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 worked out by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.