Geforce GTX 780 vs Radeon RX 5500 XT

Intro

Compare those specifications to the Radeon RX 5500 XT, which comes with clock speeds of 1717 MHz on the GPU, and 1750 MHz on the 8192 MB of GDDR6 memory. It features 1408 SPUs as well as 88 TAUs and 32 ROPs.

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 quite a bit 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 just a bit (more or less 10%) better at texture 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 (about 33%) better at full screen anti-aliasing than the Geforce GTX 780, and also able to handle higher resolutions without losing too much performance. (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 maximum amount of data (in units of megabytes per second) that can be transferred past the external memory interface in a second. The number is calculated by multiplying the card's interface width by the speed of its memory. If the card has DDR memory, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. 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 higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed per 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 card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the most pixels the video card could possibly write to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.