GeForce GTX 1660 Ti vs GeForce RTX 3090

Intro

Compare those specifications to the GeForce RTX 3090, which comes with a core clock frequency of 1395 MHz and a GDDR6X memory speed of 1219 MHz. It also makes use of a 384-bit memory bus, and uses a 8 nm design. It is comprised of 10496 SPUs, 328 Texture Address Units, and 112 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 1660 Ti		120 Watts
GeForce RTX 3090		350 Watts
	Difference: 230 Watts (192%)

Memory Bandwidth

Performance-wise, the GeForce RTX 3090 should in theory be a lot better than the GeForce GTX 1660 Ti in general. (explain)

GeForce RTX 3090		958668 MB/sec
GeForce GTX 1660 Ti		294912 MB/sec
	Difference: 663756 (225%)

Texel Rate

The GeForce RTX 3090 is much (approximately 218%) better at texture filtering than the GeForce GTX 1660 Ti. (explain)

GeForce RTX 3090		457560 Mtexels/sec
GeForce GTX 1660 Ti		144000 Mtexels/sec
	Difference: 313560 (218%)

Pixel Rate

The GeForce RTX 3090 is much (about 117%) more effective at anti-aliasing than the GeForce GTX 1660 Ti, and also will be capable of handling higher screen resolutions while still performing well. (explain)

GeForce RTX 3090		156240 Mpixels/sec
GeForce GTX 1660 Ti		72000 Mpixels/sec
	Difference: 84240 (117%)

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 data (in units of megabytes per second) that can be transported past the external memory interface in a second. It's worked out by multiplying the card's bus width by its memory speed. In the case of DDR type RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied 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 handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly write to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of Raster Operations Pipelines 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 fill rate also depends on many 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.