GeForce GTX 580 vs Geforce GTX 770

Intro

Compare all that to the Geforce GTX 770, which has GPU clock speed of 1046 MHz, and 2048 MB of GDDR5 RAM running at 1753 MHz through a 256-bit bus. It also features 1536 SPUs, 128 TAUs, and 32 Raster Operation Units.

Display Graphs

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

Geforce GTX 770		7854 points
GeForce GTX 580		4956 points
	Difference: 2898 (58%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

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

Memory Bandwidth

The Geforce GTX 770, in theory, should be just a bit faster than the GeForce GTX 580 in general. (explain)

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

Texel Rate

The Geforce GTX 770 is quite a bit (about 171%) more effective at AF than the GeForce GTX 580. (explain)

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

Pixel Rate

The GeForce GTX 580 is just a bit (about 11%) faster with regards to FSAA than the Geforce GTX 770, and also should be able to handle higher screen resolutions without losing too much performance. (explain)

GeForce GTX 580		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 largest amount of information (measured in MB per second) that can be moved over the external memory interface in one second. The number is worked out by multiplying the card's interface width by its memory speed. If it uses DDR RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels the video card can possibly record to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.