GeForce GTX 980M vs Radeon R9 380 4G

Intro

Compare those specs to the Radeon R9 380 4G, which has core clock speeds of 970 MHz on the GPU, and 1425 MHz on the 4096 MB of GDDR5 memory. It features 1792 SPUs as well as 112 TAUs 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 980M		9476 points
Radeon R9 380 4G		8837 points
	Difference: 639 (7%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 980M		100 Watts
Radeon R9 380 4G		190 Watts
	Difference: 90 Watts (90%)

Memory Bandwidth

In theory, the Radeon R9 380 4G should perform a lot faster than the GeForce GTX 980M in general. (explain)

Radeon R9 380 4G		182400 MB/sec
GeForce GTX 980M		128000 MB/sec
	Difference: 54400 (43%)

Texel Rate

The Radeon R9 380 4G should be a small bit (about 9%) better at texture filtering than the GeForce GTX 980M. (explain)

Radeon R9 380 4G		108640 Mtexels/sec
GeForce GTX 980M		99648 Mtexels/sec
	Difference: 8992 (9%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce GTX 980M is the winner, by far. (explain)

GeForce GTX 980M		66432 Mpixels/sec
Radeon R9 380 4G		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 max amount of information (counted in MB per second) that can be transferred over the external memory interface in one second. It's calculated by multiplying the bus width by its memory speed. In the case of DDR memory, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the card's 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 texture map elements (texels) that are processed in one second. This figure is worked out by multiplying the total number of texture units by the core clock speed of the chip. The better this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly record to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.