GeForce GTX 970 vs GeForce RTX 2080 SUPER

Intro

Compare those specifications to the GeForce RTX 2080 SUPER, which features a core clock speed of 1650 MHz and a GDDR6 memory speed of 1937 MHz. It also features a 256-bit memory bus, and makes use of a 12 nm design. It features 3072 SPUs, 192 TAUs, and 64 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 970		145 Watts
GeForce RTX 2080 SUPER		250 Watts
	Difference: 105 Watts (72%)

Memory Bandwidth

Performance-wise, the GeForce RTX 2080 SUPER should in theory be a lot better than the GeForce GTX 970 in general. (explain)

GeForce RTX 2080 SUPER		507904 MB/sec
GeForce GTX 970		224000 MB/sec
	Difference: 283904 (127%)

Texel Rate

The GeForce RTX 2080 SUPER should be much (more or less 190%) faster with regards to texture filtering than the GeForce GTX 970. (explain)

GeForce RTX 2080 SUPER		316800 Mtexels/sec
GeForce GTX 970		109200 Mtexels/sec
	Difference: 207600 (190%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce RTX 2080 SUPER is a better choice, by far. (explain)

GeForce RTX 2080 SUPER		105600 Mpixels/sec
GeForce GTX 970		67200 Mpixels/sec
	Difference: 38400 (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 max amount of information (measured in MB per second) that can be transferred across the external memory interface in one second. It's worked out by multiplying the card's interface width by its memory clock speed. If the card has DDR RAM, it must be multiplied by 2 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, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied per second. This is calculated by multiplying the total amount of texture units by the core speed of the chip. The better the texel rate, the better the 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 number of pixels the video card can possibly write to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). 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.