GeForce GTX 580 vs GeForce GTX 880M

Intro

Compare all of that to the GeForce GTX 880M, which features a GPU core clock speed of 954 MHz, and 4096 MB of GDDR5 memory running at 1000 MHz through a 256-bit bus. It also is made up of 1536 Stream Processors, 128 Texture Address Units, and 32 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 880M		6360 points
GeForce GTX 580		4956 points
	Difference: 1404 (28%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 880M		130 Watts
GeForce GTX 580		244 Watts
	Difference: 114 Watts (88%)

Memory Bandwidth

In theory, the GeForce GTX 580 should perform much faster than the GeForce GTX 880M overall. (explain)

GeForce GTX 580		192384 MB/sec
GeForce GTX 880M		128000 MB/sec
	Difference: 64384 (50%)

Texel Rate

The GeForce GTX 880M should be much (more or less 147%) faster with regards to texture filtering than the GeForce GTX 580. (explain)

GeForce GTX 880M		122112 Mtexels/sec
GeForce GTX 580		49408 Mtexels/sec
	Difference: 72704 (147%)

Pixel Rate

The GeForce GTX 580 is quite a bit (more or less 21%) more effective at FSAA than the GeForce GTX 880M, and should be capable of handling higher screen resolutions without slowing down too much. (explain)

GeForce GTX 580		37056 Mpixels/sec
GeForce GTX 880M		30528 Mpixels/sec
	Difference: 6528 (21%)

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 (measured in megabytes per second) that can be moved across the external memory interface in one second. The number is worked out by multiplying the interface width by its memory clock speed. If it uses DDR type memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the 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 are applied per second. This figure is calculated by multiplying the total amount of texture units by the core speed of the chip. The higher this number, the better the video 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 number of pixels that the graphics chip could possibly write to its local memory in one second - measured in millions of pixels per second. The number 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 drawing the pixels (image) on 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 potential to reach the max fill rate.