GeForce GTX 1080 vs GeForce RTX 2060

Intro

Compare all of that to the GeForce RTX 2060, which comes with a core clock frequency of 1365 MHz and a GDDR6 memory speed of 1750 MHz. It also makes use of a 192-bit bus, and makes use of a 12 nm design. It features 1920 SPUs, 120 Texture Address Units, and 48 Raster Operation Units.

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

Performance-wise, the GeForce RTX 2060 should in theory be a small bit better than 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 is much (approximately 57%) better at anisotropic 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 should be quite a bit (approximately 57%) more effective at FSAA than the GeForce RTX 2060, and also will be capable of handling higher screen resolutions without losing too much performance. (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 maximum amount of information (in units of megabytes per second) that can be transferred over the external memory interface in one second. It's calculated by multiplying the card's bus width by the speed of its memory. If it uses DDR type RAM, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed in one second. This figure is worked out by multiplying the total texture units 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 in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Render Output Units by the the core clock speed. 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 rate also depends on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.