GeForce GTX 880M vs Radeon R9 280X

Intro

Compare those specs to the Radeon R9 280X, which comes with core speeds of 850 MHz on the GPU, and 1500 MHz on the 3072 MB of GDDR5 memory. It features 2048 SPUs as well as 128 Texture Address Units and 32 Rasterization Operator Units.

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 280X		8886 points
GeForce GTX 880M		6360 points
	Difference: 2526 (40%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 880M		130 Watts
Radeon R9 280X		250 Watts
	Difference: 120 Watts (92%)

Memory Bandwidth

The Radeon R9 280X should theoretically perform much faster than the GeForce GTX 880M overall. (explain)

Radeon R9 280X		288000 MB/sec
GeForce GTX 880M		128000 MB/sec
	Difference: 160000 (125%)

Texel Rate

The GeForce GTX 880M will be a little bit (approximately 12%) more effective at texture filtering than the Radeon R9 280X. (explain)

GeForce GTX 880M		122112 Mtexels/sec
Radeon R9 280X		108800 Mtexels/sec
	Difference: 13312 (12%)

Pixel Rate

The GeForce GTX 880M is a little bit (about 12%) more effective at anti-aliasing than the Radeon R9 280X, and should be capable of handling higher screen resolutions without losing too much performance. (explain)

GeForce GTX 880M		30528 Mpixels/sec
Radeon R9 280X		27200 Mpixels/sec
	Difference: 3328 (12%)

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 (counted in megabytes per second) that can be moved across the external memory interface in one second. It's worked out by multiplying the card's bus width by its memory speed. If it uses DDR RAM, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed in one second. This figure is worked out by multiplying the total texture units by the core clock speed of the chip. The better the texel rate, the better the graphics 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 number of pixels that the graphics card could possibly record to the local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.