GeForce GTX 980M vs Radeon R9 280

Intro

Compare all of that to the Radeon R9 280, which features clock speeds of 933 MHz on the GPU, and 1250 MHz on the 3072 MB of GDDR5 memory. It features 1792 SPUs as well as 112 TAUs 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

GeForce GTX 980M		9476 points
Radeon R9 280		7961 points
	Difference: 1515 (19%)

Zcash Mining Hash Rate

Radeon R9 280		183 Sol/s
GeForce GTX 980M		155 Sol/s
	Difference: 28 (18%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 980M		100 Watts
Radeon R9 280		250 Watts
	Difference: 150 Watts (150%)

Memory Bandwidth

Theoretically speaking, the Radeon R9 280 will be 88% faster than the GeForce GTX 980M overall, because of its higher data rate. (explain)

Radeon R9 280		240000 MB/sec
GeForce GTX 980M		128000 MB/sec
	Difference: 112000 (88%)

Texel Rate

The Radeon R9 280 should be a little bit (more or less 5%) faster with regards to texture filtering than the GeForce GTX 980M. (explain)

Radeon R9 280		104496 Mtexels/sec
GeForce GTX 980M		99648 Mtexels/sec
	Difference: 4848 (5%)

Pixel Rate

The GeForce GTX 980M should be much (about 123%) better at anti-aliasing than the Radeon R9 280, and will be able to handle higher resolutions better. (explain)

GeForce GTX 980M		66432 Mpixels/sec
Radeon R9 280		29856 Mpixels/sec
	Difference: 36576 (123%)

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 information (counted in megabytes per second) that can be transferred across the external memory interface in a second. The number is calculated by multiplying the card's bus width by the speed of its memory. If the card has DDR type memory, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied per second. This is worked out by multiplying the total number of texture units by the core speed of the chip. The better the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.