GeForce GTX 880M vs Radeon Pro Duo

Intro

Compare those specs to the Radeon Pro Duo, which makes use of a 28 nm design. AMD has clocked the core frequency at 1000 MHz. The HBM memory runs at a speed of 500 MHz on this particular card. It features 4096 SPUs along with 256 TAUs and 64 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

Radeon Pro Duo		27167 points
GeForce GTX 880M		6360 points
	Difference: 20807 (327%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 880M		130 Watts
Radeon Pro Duo		350 Watts
	Difference: 220 Watts (169%)

Memory Bandwidth

As far as performance goes, the Radeon Pro Duo should in theory be much superior to the GeForce GTX 880M overall. (explain)

Radeon Pro Duo		1024000 MB/sec
GeForce GTX 880M		128000 MB/sec
	Difference: 896000 (700%)

Texel Rate

The Radeon Pro Duo should be much (about 319%) more effective at texture filtering than the GeForce GTX 880M. (explain)

Radeon Pro Duo		512000 Mtexels/sec
GeForce GTX 880M		122112 Mtexels/sec
	Difference: 389888 (319%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon Pro Duo is the winner, by a large margin. (explain)

Radeon Pro Duo		128000 Mpixels/sec
GeForce GTX 880M		30528 Mpixels/sec
	Difference: 97472 (319%)

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.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

Specifications

Memory Bandwidth: Bandwidth is the max amount of information (counted in megabytes per second) that can be transferred over the external memory interface within a second. It is calculated by multiplying the card's bus width by its memory clock speed. If it uses DDR type RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better 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 are applied in one second. This number is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The higher this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly write to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.