GeForce GTX 1080 vs GeForce RTX 2060

Intro

Compare all that to the GeForce RTX 2060, which comes with a core clock frequency of 1365 MHz and a GDDR6 memory frequency of 1750 MHz. It also uses a 192-bit bus, and makes use of a 12 nm design. It is made up of 1920 SPUs, 120 TAUs, and 48 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce RTX 2060		160 Watts
GeForce GTX 1080		180 Watts
	Difference: 20 Watts (13%)

Memory Bandwidth

As far as performance goes, the GeForce RTX 2060 should in theory be a small bit superior to the GeForce GTX 1080 in general. (explain)

GeForce RTX 2060		344064 MB/sec
GeForce GTX 1080		327680 MB/sec
	Difference: 16384 (5%)

Texel Rate

The GeForce GTX 1080 should be a lot (approximately 57%) more effective at texture filtering than the GeForce RTX 2060. (explain)

GeForce GTX 1080		257120 Mtexels/sec
GeForce RTX 2060		163800 Mtexels/sec
	Difference: 93320 (57%)

Pixel Rate

The GeForce GTX 1080 is much (approximately 57%) more effective at anti-aliasing than the GeForce RTX 2060, and also capable of handling higher screen resolutions more effectively. (explain)

GeForce GTX 1080		102848 Mpixels/sec
GeForce RTX 2060		65520 Mpixels/sec
	Difference: 37328 (57%)

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 information (measured in megabytes per second) that can be moved past the external memory interface in a second. It's worked out by multiplying the bus width by the speed of its memory. If the card has DDR type RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels the video card can possibly record to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.