GeForce GTX 980M vs Radeon RX 6500 XT

Intro

Compare those specifications to the Radeon RX 6500 XT, which makes use of a 6 nm design. AMD has clocked the core frequency at 2200 MHz. The GDDR6 memory works at a speed of 2250 MHz on this model. It features 1024 SPUs along with 64 TAUs and 32 Rasterization Operator Units.

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

In theory, the Radeon RX 6500 XT is 15% quicker than the GeForce GTX 980M overall, due to its greater bandwidth. (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 quite a bit (more or less 41%) more effective 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 little bit (approximately 6%) faster with regards to full screen anti-aliasing than the GeForce GTX 980M, and also able to handle higher screen resolutions while still performing well. (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 maximum amount of information (measured in megabytes per second) that can be moved past the external memory interface in a second. The number is worked out by multiplying the card's interface width by the speed of its memory. In the case of DDR type memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the 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 can be processed per second. This figure is calculated by multiplying the total amount of texture units of the card by the core clock speed of the chip. The better the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.