GeForce RTX 2060 vs Geforce GTX 780

Intro

Compare those specs to the Geforce GTX 780, which features a GPU core clock speed of 863 MHz, and 3072 MB of GDDR5 memory running at 1502 MHz through a 384-bit bus. It also features 2304 Stream Processors, 192 Texture Address Units, and 48 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce RTX 2060		160 Watts
Geforce GTX 780		250 Watts
	Difference: 90 Watts (56%)

Memory Bandwidth

Theoretically speaking, the GeForce RTX 2060 should be a small bit faster than the Geforce GTX 780 in general. (explain)

GeForce RTX 2060		344064 MB/sec
Geforce GTX 780		288384 MB/sec
	Difference: 55680 (19%)

Texel Rate

The Geforce GTX 780 will be a small bit (approximately 1%) faster with regards to anisotropic filtering than the GeForce RTX 2060. (explain)

Geforce GTX 780		165696 Mtexels/sec
GeForce RTX 2060		163800 Mtexels/sec
	Difference: 1896 (1%)

Pixel Rate

The GeForce RTX 2060 should be much (approximately 58%) faster with regards to full screen anti-aliasing than the Geforce GTX 780, and capable of handling higher screen resolutions more effectively. (explain)

GeForce RTX 2060		65520 Mpixels/sec
Geforce GTX 780		41424 Mpixels/sec
	Difference: 24096 (58%)

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 information (in units of MB per second) that can be transferred over the external memory interface in one second. It's calculated by multiplying the interface width by its memory speed. If it uses DDR memory, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better 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 amount of texture map elements (texels) that can be processed per second. This figure is calculated by multiplying the total amount of texture units of the card by the core clock speed of the chip. The higher 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 most pixels that the graphics chip can possibly write to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of Raster Operations Pipelines by the the core 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 output rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.