GeForce GTX 1070 vs GeForce GTX 580 3GB

Intro

Compare that to the GeForce GTX 580 3GB, which has a core clock frequency of 772 MHz and a GDDR5 memory speed of 1002 MHz. It also features a 384-bit memory bus, and makes use of a 40 nm design. It features 512 SPUs, 64 TAUs, and 48 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 1070		150 Watts
GeForce GTX 580 3GB		244 Watts
	Difference: 94 Watts (63%)

Memory Bandwidth

Performance-wise, the GeForce GTX 1070 should in theory be much superior to the GeForce GTX 580 3GB in general. (explain)

GeForce GTX 1070		262144 MB/sec
GeForce GTX 580 3GB		192384 MB/sec
	Difference: 69760 (36%)

Texel Rate

The GeForce GTX 1070 is quite a bit (approximately 266%) more effective at anisotropic filtering than the GeForce GTX 580 3GB. (explain)

GeForce GTX 1070		180720 Mtexels/sec
GeForce GTX 580 3GB		49408 Mtexels/sec
	Difference: 131312 (266%)

Pixel Rate

The GeForce GTX 1070 will be quite a bit (more or less 160%) faster with regards to AA than the GeForce GTX 580 3GB, and will be able to handle higher resolutions without slowing down too much. (explain)

GeForce GTX 1070		96384 Mpixels/sec
GeForce GTX 580 3GB		37056 Mpixels/sec
	Difference: 59328 (160%)

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 max amount of data (measured in MB per second) that can be transported past the external memory interface in a second. It is worked out by multiplying the card's interface width by its memory speed. If the card has DDR type memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied in one second. This figure is worked out by multiplying the total number of texture units by the core speed of the chip. The higher 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 maximum amount of pixels the graphics card could possibly record to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.