GeForce GTX 580 3GB vs Geforce GTX 770

Intro

Compare those specifications to the Geforce GTX 770, which features GPU core speed of 1046 MHz, and 2048 MB of GDDR5 RAM set to run at 1753 MHz through a 256-bit bus. It also features 1536 Stream Processors, 128 TAUs, and 32 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Geforce GTX 770		230 Watts
GeForce GTX 580 3GB		244 Watts
	Difference: 14 Watts (6%)

Memory Bandwidth

As far as performance goes, the Geforce GTX 770 should in theory be a little bit better than the GeForce GTX 580 3GB overall. (explain)

Geforce GTX 770		224384 MB/sec
GeForce GTX 580 3GB		192384 MB/sec
	Difference: 32000 (17%)

Texel Rate

The Geforce GTX 770 should be quite a bit (more or less 171%) better at AF than the GeForce GTX 580 3GB. (explain)

Geforce GTX 770		133888 Mtexels/sec
GeForce GTX 580 3GB		49408 Mtexels/sec
	Difference: 84480 (171%)

Pixel Rate

If using a high screen resolution is important to you, then the GeForce GTX 580 3GB is a better choice, though not by far. (explain)

GeForce GTX 580 3GB		37056 Mpixels/sec
Geforce GTX 770		33472 Mpixels/sec
	Difference: 3584 (11%)

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 megabytes per second) that can be moved across the external memory interface within a second. The number is calculated by multiplying the interface width by its memory speed. In the case of DDR RAM, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied per second. This number is calculated by multiplying the total amount of texture units of the card by the core clock speed of the chip. The higher this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly record to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.