GeForce GTX 580 vs GeForce GTX 860M

Intro

Compare all that to the GeForce GTX 860M, which has GPU core speed of 797 MHz, and 4096 MB of GDDR5 RAM running at 1000 MHz through a 128-bit bus. It also is comprised of 1152 SPUs, 96 TAUs, and 16 Raster Operation 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.

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

As far as performance goes, the GeForce GTX 580 should theoretically be a lot superior to the GeForce GTX 860M in general. (explain)

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

Texel Rate

The GeForce GTX 860M is a lot (approximately 55%) better at texture 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 is much (approximately 191%) faster with regards to anti-aliasing than the GeForce GTX 860M, and also should be capable of handling higher screen resolutions better. (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 information (measured in megabytes per second) that can be transferred past the external memory interface within a second. It's calculated by multiplying the card's bus width by the speed of its memory. In the case of DDR type memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied per second. This 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 texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics 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 amount of colour ROPs by the clock speed of the card. 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 lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.