GeForce RTX 3080 12 GB vs Geforce GTX 670

Intro

Compare all that to the Geforce GTX 670, which comes with core clock speeds of 915 MHz on the GPU, and 1500 MHz on the 2048 MB of GDDR5 RAM. It features 1344 SPUs along with 112 Texture Address Units and 32 Rasterization Operator Units.

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

As far as performance goes, the GeForce RTX 3080 12 GB should in theory be a lot better than the Geforce GTX 670 in general. (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 much (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 is a lot (approximately 382%) better at FSAA than the Geforce GTX 670, and also should be capable of handling 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 (measured in megabytes per second) that can be transported over the external memory interface in a second. It is worked out by multiplying the card's bus width by the speed of its memory. In the case of DDR type memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the better 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 texture map elements (texels) that are processed in one second. This figure is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The better the texel rate, the better the graphics 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 record to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.