GeForce GTX 880M vs Radeon R9 380 2G

Intro

Compare those specifications to the Radeon R9 380 2G, which comes with GPU core speed of 970 MHz, and 2048 MB of GDDR5 RAM running at 1425 MHz through a 256-bit bus. It also is comprised of 1792 Stream Processors, 112 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

Radeon R9 380 2G		8850 points
GeForce GTX 880M		6360 points
	Difference: 2490 (39%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 880M		130 Watts
Radeon R9 380 2G		190 Watts
	Difference: 60 Watts (46%)

Memory Bandwidth

In theory, the Radeon R9 380 2G is 43% quicker than the GeForce GTX 880M in general, because of its higher data rate. (explain)

Radeon R9 380 2G		182400 MB/sec
GeForce GTX 880M		128000 MB/sec
	Difference: 54400 (43%)

Texel Rate

The GeForce GTX 880M is a little bit (more or less 12%) better at texture filtering than the Radeon R9 380 2G. (explain)

GeForce GTX 880M		122112 Mtexels/sec
Radeon R9 380 2G		108640 Mtexels/sec
	Difference: 13472 (12%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon R9 380 2G is a better choice, though not by far. (explain)

Radeon R9 380 2G		31040 Mpixels/sec
GeForce GTX 880M		30528 Mpixels/sec
	Difference: 512 (2%)

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 max amount of information (measured in MB per second) that can be transferred over the external memory interface within a second. The number is calculated by multiplying the bus width by the speed of its memory. If the card has DDR type RAM, 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 number of texture map elements (texels) that can be processed per second. This is worked out by multiplying the total texture units by the core speed of the chip. The higher the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number 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 rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.