GeForce GTX 980M vs Radeon R9 380X

Intro

Compare those specs to the Radeon R9 380X, which has clock speeds of 970 MHz on the GPU, and 1425 MHz on the 4096 MB of GDDR5 memory. It features 2048 SPUs along with 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 380X		9519 points
GeForce GTX 980M		9476 points
	Difference: 43 (0%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 980M		100 Watts
Radeon R9 380X		190 Watts
	Difference: 90 Watts (90%)

Memory Bandwidth

The Radeon R9 380X should theoretically be much faster than the GeForce GTX 980M overall. (explain)

Radeon R9 380X		182400 MB/sec
GeForce GTX 980M		128000 MB/sec
	Difference: 54400 (43%)

Texel Rate

The Radeon R9 380X should be much (approximately 25%) better at anisotropic filtering than the GeForce GTX 980M. (explain)

Radeon R9 380X		124160 Mtexels/sec
GeForce GTX 980M		99648 Mtexels/sec
	Difference: 24512 (25%)

Pixel Rate

If using a high resolution is important to you, then the GeForce GTX 980M is the winner, and very much so. (explain)

GeForce GTX 980M		66432 Mpixels/sec
Radeon R9 380X		31040 Mpixels/sec
	Difference: 35392 (114%)

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 maximum amount of data (measured in MB per second) that can be transferred past the external memory interface in a second. It is calculated by multiplying the interface width by its memory clock speed. In the case of DDR type RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed per second. This number is calculated by multiplying the total amount of texture units by the core clock 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 one second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly record to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.