GeForce GTX 580 vs Geforce GTX 780

Intro

Compare all that to the Geforce GTX 780, which makes use of a 28 nm design. nVidia has clocked the core speed at 863 MHz. The GDDR5 memory is set to run at a frequency of 1502 MHz on this particular card. It features 2304 SPUs as well as 192 TAUs and 48 Rasterization Operator Units.

Display Graphs

Hide Graphs

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.

Grand Theft Auto V | 1920x1080 | Very High

Geforce GTX 780		48 FPS
GeForce GTX 580		25 FPS
	Difference: 23 (92%)

3DMark Fire Strike Graphics Score

Geforce GTX 780		10082 points
GeForce GTX 580		4956 points
	Difference: 5126 (103%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 580		244 Watts
Geforce GTX 780		250 Watts
	Difference: 6 Watts (2%)

Memory Bandwidth

In theory, the Geforce GTX 780 will be 50% faster than the GeForce GTX 580 in general, due to its greater data rate. (explain)

Geforce GTX 780		288384 MB/sec
GeForce GTX 580		192384 MB/sec
	Difference: 96000 (50%)

Texel Rate

The Geforce GTX 780 should be a lot (approximately 235%) more effective at AF than the GeForce GTX 580. (explain)

Geforce GTX 780		165696 Mtexels/sec
GeForce GTX 580		49408 Mtexels/sec
	Difference: 116288 (235%)

Pixel Rate

If running with high levels of AA is important to you, then the Geforce GTX 780 is a better choice, but not by far. (explain)

Geforce GTX 780		41424 Mpixels/sec
GeForce GTX 580		37056 Mpixels/sec
	Difference: 4368 (12%)

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: Bandwidth is the maximum amount of information (measured in MB per second) that can be moved past the external memory interface within a second. It is worked out by multiplying the interface width by the speed of its memory. If the card has DDR memory, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the card's 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 are processed per second. This figure is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.