GeForce GTX 560 vs Geforce GTX 780

Intro

Compare that to the Geforce GTX 780, which has a GPU core clock speed of 863 MHz, and 3072 MB of GDDR5 memory set to run at 1502 MHz through a 384-bit bus. It also is comprised of 2304 SPUs, 192 TAUs, and 48 ROPs.

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 560		3030 points
	Difference: 7052 (233%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 560		150 Watts
Geforce GTX 780		250 Watts
	Difference: 100 Watts (67%)

Memory Bandwidth

Theoretically speaking, the Geforce GTX 780 will be 125% faster than the GeForce GTX 560 in general, because of its higher data rate. (explain)

Geforce GTX 780		288384 MB/sec
GeForce GTX 560		128128 MB/sec
	Difference: 160256 (125%)

Texel Rate

The Geforce GTX 780 should be quite a bit (more or less 265%) more effective at anisotropic filtering than the GeForce GTX 560. (explain)

Geforce GTX 780		165696 Mtexels/sec
GeForce GTX 560		45360 Mtexels/sec
	Difference: 120336 (265%)

Pixel Rate

If using a high screen resolution is important to you, then the Geforce GTX 780 is superior to the GeForce GTX 560, by a large margin. (explain)

Geforce GTX 780		41424 Mpixels/sec
GeForce GTX 560		25920 Mpixels/sec
	Difference: 15504 (60%)

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 maximum amount of data (in units of MB per second) that can be transferred past the external memory interface in a second. It is calculated by multiplying the card's interface width by its memory clock speed. If it uses DDR memory, the result should be multiplied by 2 once 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, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly record to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - aka 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, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.