GeForce GTX 590 vs Geforce GTX 780

Intro

Compare all of that to the Geforce GTX 780, which has a core clock frequency of 863 MHz and a GDDR5 memory speed of 1502 MHz. It also makes use of a 384-bit memory bus, and makes use of a 28 nm design. It is made up of 2304 SPUs, 192 Texture Address Units, and 48 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 780		10082 points
GeForce GTX 590		6680 points
	Difference: 3402 (51%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Geforce GTX 780		250 Watts
GeForce GTX 590		365 Watts
	Difference: 115 Watts (46%)

Memory Bandwidth

The GeForce GTX 590 should in theory perform just a bit faster than the Geforce GTX 780 in general. (explain)

GeForce GTX 590		328320 MB/sec
Geforce GTX 780		288384 MB/sec
	Difference: 39936 (14%)

Texel Rate

The Geforce GTX 780 is a lot (more or less 113%) better at AF than the GeForce GTX 590. (explain)

Geforce GTX 780		165696 Mtexels/sec
GeForce GTX 590		77696 Mtexels/sec
	Difference: 88000 (113%)

Pixel Rate

The GeForce GTX 590 should be quite a bit (more or less 41%) more effective at FSAA than the Geforce GTX 780, and able to handle higher resolutions more effectively. (explain)

GeForce GTX 590		58272 Mpixels/sec
Geforce GTX 780		41424 Mpixels/sec
	Difference: 16848 (41%)

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.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

Specifications

Memory Bandwidth: Bandwidth is the maximum amount of data (measured in megabytes per second) that can be transferred over the external memory interface in one second. It's calculated by multiplying the card's bus width by the speed of its memory. If it uses DDR type memory, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

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