GeForce GTX 580 3GB vs Geforce GTX 760

Intro

Compare all of that to the Geforce GTX 760, which makes use of a 28 nm design. nVidia has set the core frequency at 980 MHz. The GDDR5 memory is set to run at a speed of 1502 MHz on this particular model. It features 1152 SPUs along with 96 TAUs and 32 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Geforce GTX 760		170 Watts
GeForce GTX 580 3GB		244 Watts
	Difference: 74 Watts (44%)

Memory Bandwidth

Performance-wise, the GeForce GTX 580 3GB should theoretically be a bit superior to the Geforce GTX 760 overall. (explain)

GeForce GTX 580 3GB		192384 MB/sec
Geforce GTX 760		192256 MB/sec
	Difference: 128 (0%)

Texel Rate

The Geforce GTX 760 should be a lot (approximately 90%) more effective at texture filtering than the GeForce GTX 580 3GB. (explain)

Geforce GTX 760		94080 Mtexels/sec
GeForce GTX 580 3GB		49408 Mtexels/sec
	Difference: 44672 (90%)

Pixel Rate

The GeForce GTX 580 3GB should be just a bit (more or less 18%) more effective at AA than the Geforce GTX 760, and capable of handling higher resolutions without slowing down too much. (explain)

GeForce GTX 580 3GB		37056 Mpixels/sec
Geforce GTX 760		31360 Mpixels/sec
	Difference: 5696 (18%)

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 maximum amount of information (measured in MB per second) that can be transferred across the external memory interface in a second. It's calculated by multiplying the bus width by the speed of its memory. If the card has DDR type RAM, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly write to the local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.