GeForce GTX 980 vs Radeon RX 6650 XT

Intro

Compare those specifications to the Radeon RX 6650 XT, which has a core clock frequency of 2055 MHz and a GDDR6 memory speed of 2190 MHz. It also makes use of a 128-bit bus, and uses a 7 nm design. It features 2048 SPUs, 128 TAUs, and 64 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 980		165 Watts
Radeon RX 6650 XT		176 Watts
	Difference: 11 Watts (7%)

Memory Bandwidth

In theory, the Radeon RX 6650 XT will be 28% faster than the GeForce GTX 980 overall, due to its greater bandwidth. (explain)

Radeon RX 6650 XT		287072 MB/sec
GeForce GTX 980		224000 MB/sec
	Difference: 63072 (28%)

Texel Rate

The Radeon RX 6650 XT should be a lot (approximately 83%) better at anisotropic filtering than the GeForce GTX 980. (explain)

Radeon RX 6650 XT		263040 Mtexels/sec
GeForce GTX 980		144128 Mtexels/sec
	Difference: 118912 (83%)

Pixel Rate

If running with a high resolution is important to you, then the Radeon RX 6650 XT is superior to the GeForce GTX 980, and very much so. (explain)

Radeon RX 6650 XT		131520 Mpixels/sec
GeForce GTX 980		72064 Mpixels/sec
	Difference: 59456 (83%)

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 largest amount of data (measured in MB per second) that can be moved across the external memory interface within a second. It's calculated by multiplying the bus width by the speed of its memory. In the case of DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster 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 number of texture map elements (texels) that can be processed in one second. This number is calculated by multiplying the total texture units of the card by the core speed of the chip. The better this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly record to its local memory in a 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 many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.