GeForce RTX 3080 12 GB vs Geforce GTX 690

Intro

Compare that to the Geforce GTX 690, which comes with a core clock frequency of 915 MHz and a GDDR5 memory speed of 1502 MHz. It also features a 256-bit memory bus, and makes use of a 28 nm design. It features 1536 SPUs, 128 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Geforce GTX 690		300 Watts
GeForce RTX 3080 12 GB		350 Watts
	Difference: 50 Watts (17%)

Memory Bandwidth

In theory, the GeForce RTX 3080 12 GB should perform a lot faster than the Geforce GTX 690 in general. (explain)

GeForce RTX 3080 12 GB		934298 MB/sec
Geforce GTX 690		384512 MB/sec
	Difference: 549786 (143%)

Texel Rate

The GeForce RTX 3080 12 GB should be much (more or less 51%) more effective at texture filtering than the Geforce GTX 690. (explain)

GeForce RTX 3080 12 GB		352800 Mtexels/sec
Geforce GTX 690		234240 Mtexels/sec
	Difference: 118560 (51%)

Pixel Rate

If using a high resolution is important to you, then the GeForce RTX 3080 12 GB is the winner, and very much so. (explain)

GeForce RTX 3080 12 GB		141120 Mpixels/sec
Geforce GTX 690		58560 Mpixels/sec
	Difference: 82560 (141%)

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.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

Specifications

Memory Bandwidth: Bandwidth is the max amount of information (measured in megabytes per second) that can be transported over the external memory interface in one second. The number is calculated by multiplying the card's bus width by its memory speed. In the case of DDR RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied in one second. This figure is worked out by multiplying the total texture units of the card by the core speed of the chip. The better the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the most pixels the video card could possibly write to the local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output 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 potential to reach the maximum fill rate.