GeForce GTX 580 vs GeForce GTX 860M

Intro

Compare those specs to the GeForce GTX 860M, which uses a 28 nm design. nVidia has clocked the core speed at 797 MHz. The GDDR5 memory is set to run at a speed of 1000 MHz on this model. It features 1152 SPUs along with 96 TAUs and 16 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 580		4956 points
GeForce GTX 860M		4340 points
	Difference: 616 (14%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 860M		45 Watts
GeForce GTX 580		244 Watts
	Difference: 199 Watts (442%)

Memory Bandwidth

Performance-wise, the GeForce GTX 580 should theoretically be much better than the GeForce GTX 860M overall. (explain)

GeForce GTX 580		192384 MB/sec
GeForce GTX 860M		64000 MB/sec
	Difference: 128384 (201%)

Texel Rate

The GeForce GTX 860M will be quite a bit (about 55%) better at anisotropic filtering than the GeForce GTX 580. (explain)

GeForce GTX 860M		76512 Mtexels/sec
GeForce GTX 580		49408 Mtexels/sec
	Difference: 27104 (55%)

Pixel Rate

The GeForce GTX 580 will be quite a bit (more or less 191%) more effective at full screen anti-aliasing than the GeForce GTX 860M, and also should be capable of handling higher screen resolutions more effectively. (explain)

GeForce GTX 580		37056 Mpixels/sec
GeForce GTX 860M		12752 Mpixels/sec
	Difference: 24304 (191%)

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 largest amount of data (counted in MB per second) that can be transported over the external memory interface within a second. The number is calculated by multiplying the card's bus width by the speed of its memory. In the case of DDR type memory, it should be multiplied by 2 once 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 high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied in one second. This figure is worked out by multiplying the total amount of texture units by the core speed of the chip. The better this number, the better the video card will be at handling 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 write to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.