Geforce GTX 780 vs Radeon RX 5500 XT

Intro

Compare those specs to the Radeon RX 5500 XT, which has a GPU core clock speed of 1717 MHz, and 8192 MB of GDDR6 memory set to run at 1750 MHz through a 128-bit bus. It also features 1408 Stream Processors, 88 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 5500 XT		130 Watts
Geforce GTX 780		250 Watts
	Difference: 120 Watts (92%)

Memory Bandwidth

Theoretically, the Geforce GTX 780 should perform a lot faster than the Radeon RX 5500 XT overall. (explain)

Geforce GTX 780		288384 MB/sec
Radeon RX 5500 XT		229376 MB/sec
	Difference: 59008 (26%)

Texel Rate

The Geforce GTX 780 is a small bit (more or less 10%) better at anisotropic filtering than the Radeon RX 5500 XT. (explain)

Geforce GTX 780		165696 Mtexels/sec
Radeon RX 5500 XT		151096 Mtexels/sec
	Difference: 14600 (10%)

Pixel Rate

The Radeon RX 5500 XT should be a lot (more or less 33%) better at anti-aliasing than the Geforce GTX 780, and will be capable of handling higher resolutions while still performing well. (explain)

Radeon RX 5500 XT		54944 Mpixels/sec
Geforce GTX 780		41424 Mpixels/sec
	Difference: 13520 (33%)

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 largest amount of data (in units of megabytes per second) that can be transferred across the external memory interface in a second. It's worked out by multiplying the interface width by the speed of its memory. If it uses DDR type memory, it should 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 AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed per second. This figure is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The better this number, the better the 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 number of pixels the graphics card could possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.