GeForce GTX 660 vs GeForce RTX 3080 Ti

Intro

Compare those specifications to the GeForce RTX 3080 Ti, which uses a 8 nm design. nVidia has set the core speed at 1365 MHz. The GDDR6X RAM is set to run at a speed of 1188 MHz on this specific model. It features 10240 SPUs along with 320 Texture Address Units and 112 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 660		140 Watts
GeForce RTX 3080 Ti		350 Watts
	Difference: 210 Watts (150%)

Memory Bandwidth

Theoretically speaking, the GeForce RTX 3080 Ti should perform quite a bit faster than the GeForce GTX 660 in general. (explain)

GeForce RTX 3080 Ti		934297 MB/sec
GeForce GTX 660		144192 MB/sec
	Difference: 790105 (548%)

Texel Rate

The GeForce RTX 3080 Ti is quite a bit (approximately 457%) faster with regards to anisotropic filtering than the GeForce GTX 660. (explain)

GeForce RTX 3080 Ti		436800 Mtexels/sec
GeForce GTX 660		78400 Mtexels/sec
	Difference: 358400 (457%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce RTX 3080 Ti is the winner, by far. (explain)

GeForce RTX 3080 Ti		152880 Mpixels/sec
GeForce GTX 660		23520 Mpixels/sec
	Difference: 129360 (550%)

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 maximum amount of data (counted in megabytes per second) that can be transported across the external memory interface within a second. It's calculated by multiplying the card's bus width by its memory speed. If it uses DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed per second. This number is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The higher the texel rate, the better the graphics 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 amount of pixels that the graphics 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 ROPs by the clock 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 output rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.