GeForce GTX 580 vs Radeon HD 6770 1GB

Intro

Compare all of that to the Radeon HD 6770 1GB, which comes with a core clock speed of 900 MHz and a GDDR5 memory speed of 1050 MHz. It also features a 128-bit bus, and makes use of a 40 nm design. It is comprised of 800 SPUs, 40 TAUs, and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6770 1GB		108 Watts
GeForce GTX 580		244 Watts
	Difference: 136 Watts (126%)

Memory Bandwidth

The GeForce GTX 580 should theoretically perform a lot faster than the Radeon HD 6770 1GB in general. (explain)

GeForce GTX 580		192384 MB/sec
Radeon HD 6770 1GB		67200 MB/sec
	Difference: 125184 (186%)

Texel Rate

The GeForce GTX 580 should be quite a bit (about 37%) faster with regards to anisotropic filtering than the Radeon HD 6770 1GB. (explain)

GeForce GTX 580		49408 Mtexels/sec
Radeon HD 6770 1GB		36000 Mtexels/sec
	Difference: 13408 (37%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce GTX 580 is superior to the Radeon HD 6770 1GB, by far. (explain)

GeForce GTX 580		37056 Mpixels/sec
Radeon HD 6770 1GB		14400 Mpixels/sec
	Difference: 22656 (157%)

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 data (measured in megabytes per second) that can be transported past the external memory interface in a second. It is calculated by multiplying the card's interface width by its memory speed. If it uses DDR type memory, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, 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 number of texture map elements (texels) that can be processed per second. This number is calculated by multiplying the total texture units by the core clock speed of the chip. The better this number, the better the 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 the graphics card can possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.