GeForce GTX 980M vs Radeon RX 6500 XT

Intro

Compare those specifications to the Radeon RX 6500 XT, which uses a 6 nm design. AMD has set the core frequency at 2200 MHz. The GDDR6 memory is set to run at a frequency of 2250 MHz on this specific model. It features 1024 SPUs as well as 64 TAUs and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 980M		100 Watts
Radeon RX 6500 XT		107 Watts
	Difference: 7 Watts (7%)

Memory Bandwidth

Theoretically, the Radeon RX 6500 XT should be a small bit faster than the GeForce GTX 980M overall. (explain)

Radeon RX 6500 XT		147456 MB/sec
GeForce GTX 980M		128000 MB/sec
	Difference: 19456 (15%)

Texel Rate

The Radeon RX 6500 XT should be a lot (approximately 41%) better at AF than the GeForce GTX 980M. (explain)

Radeon RX 6500 XT		140800 Mtexels/sec
GeForce GTX 980M		99648 Mtexels/sec
	Difference: 41152 (41%)

Pixel Rate

The Radeon RX 6500 XT should be a small bit (about 6%) faster with regards to FSAA than the GeForce GTX 980M, and will be capable of handling higher screen resolutions without losing too much performance. (explain)

Radeon RX 6500 XT		70400 Mpixels/sec
GeForce GTX 980M		66432 Mpixels/sec
	Difference: 3968 (6%)

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: Memory bandwidth is the max amount of data (in units of MB per second) that can be moved across the external memory interface within a second. The number is calculated by multiplying the card's interface width by its memory speed. If it uses DDR type memory, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed in one second. This is calculated by multiplying the total texture units by the core clock speed of the chip. The higher this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate 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 filling the screen with pixels (the image). The actual pixel rate also depends on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.