GeForce GTX 970 vs GeForce RTX 2080 SUPER

Intro

Compare those specs to the GeForce RTX 2080 SUPER, which comes with GPU clock speed of 1650 MHz, and 8192 MB of GDDR6 memory set to run at 1937 MHz through a 256-bit bus. It also is comprised of 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

In theory, the GeForce RTX 2080 SUPER should be quite a bit faster 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 is quite a bit (approximately 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

The GeForce RTX 2080 SUPER will be much (approximately 57%) faster with regards to FSAA than the GeForce GTX 970, and also capable of handling higher resolutions without losing too much performance. (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 largest amount of information (measured in megabytes per second) that can be transferred over the external memory interface in one second. The number is worked out by multiplying the card's bus width by its memory speed. In the case of DDR RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, 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 number of texture map elements (texels) that are processed per second. This number is worked out by multiplying the total texture units of the card by the core speed of the chip. The higher the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels 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. The number is calculated by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.