GeForce RTX 3080 12 GB vs Geforce GTX 670

Intro

Compare all that to the Geforce GTX 670, which uses a 28 nm design. nVidia has clocked the core speed at 915 MHz. The GDDR5 RAM works at a frequency of 1500 MHz on this specific model. It features 1344 SPUs along with 112 TAUs and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Geforce GTX 670		170 Watts
GeForce RTX 3080 12 GB		350 Watts
	Difference: 180 Watts (106%)

Memory Bandwidth

In theory, the GeForce RTX 3080 12 GB should be 387% quicker than the Geforce GTX 670 overall, because of its higher bandwidth. (explain)

GeForce RTX 3080 12 GB		934298 MB/sec
Geforce GTX 670		192000 MB/sec
	Difference: 742298 (387%)

Texel Rate

The GeForce RTX 3080 12 GB will be a lot (about 244%) faster with regards to texture filtering than the Geforce GTX 670. (explain)

GeForce RTX 3080 12 GB		352800 Mtexels/sec
Geforce GTX 670		102480 Mtexels/sec
	Difference: 250320 (244%)

Pixel Rate

The GeForce RTX 3080 12 GB should be a lot (about 382%) more effective at full screen anti-aliasing than the Geforce GTX 670, and will be able to handle higher resolutions without slowing down too much. (explain)

GeForce RTX 3080 12 GB		141120 Mpixels/sec
Geforce GTX 670		29280 Mpixels/sec
	Difference: 111840 (382%)

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 (counted in megabytes per second) that can be transferred over the external memory interface in one second. It's worked out by multiplying the card's interface width by its memory clock speed. In the case of DDR type RAM, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are 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 this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly record to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on many 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.