GeForce RTX 2080 SUPER vs Geforce GTX 780

Intro

Compare all that to the Geforce GTX 780, which has a clock speed of 863 MHz and a GDDR5 memory frequency of 1502 MHz. It also features a 384-bit memory bus, and uses a 28 nm design. It is made up of 2304 SPUs, 192 Texture Address Units, and 48 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Both cards have the same power consumption.

Memory Bandwidth

As far as performance goes, the GeForce RTX 2080 SUPER should in theory be quite a bit superior to the Geforce GTX 780 in general. (explain)

GeForce RTX 2080 SUPER		507904 MB/sec
Geforce GTX 780		288384 MB/sec
	Difference: 219520 (76%)

Texel Rate

The GeForce RTX 2080 SUPER will be quite a bit (approximately 91%) faster with regards to anisotropic filtering than the Geforce GTX 780. (explain)

GeForce RTX 2080 SUPER		316800 Mtexels/sec
Geforce GTX 780		165696 Mtexels/sec
	Difference: 151104 (91%)

Pixel Rate

The GeForce RTX 2080 SUPER should be a lot (more or less 155%) better at full screen anti-aliasing than the Geforce GTX 780, and able to handle higher resolutions more effectively. (explain)

GeForce RTX 2080 SUPER		105600 Mpixels/sec
Geforce GTX 780		41424 Mpixels/sec
	Difference: 64176 (155%)

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 data (in units of megabytes per second) that can be transported across the external memory interface within a second. It's calculated by multiplying the bus width by its memory speed. In the case of DDR type RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied in one second. This figure is worked out by multiplying the total number of texture units by the core clock speed of the chip. The higher this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one 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 amount of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.