GeForce RTX 3080 12 GB vs GeForce RTX 4070 Ti

Intro

Compare those specs to the GeForce RTX 4070 Ti, which comes with a clock speed of 2310 MHz and a GDDR6X memory speed of 1313 MHz. It also features a 192-bit bus, and makes use of a 4 nm design. It is made up of 7680 SPUs, 240 Texture Address Units, and 80 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce RTX 4070 Ti		285 Watts
GeForce RTX 3080 12 GB		350 Watts
	Difference: 65 Watts (23%)

Memory Bandwidth

In theory, the GeForce RTX 3080 12 GB will be 81% quicker than the GeForce RTX 4070 Ti in general, due to its higher data rate. (explain)

GeForce RTX 3080 12 GB		934298 MB/sec
GeForce RTX 4070 Ti		516096 MB/sec
	Difference: 418202 (81%)

Texel Rate

The GeForce RTX 4070 Ti is quite a bit (approximately 57%) faster with regards to AF than the GeForce RTX 3080 12 GB. (explain)

GeForce RTX 4070 Ti		554400 Mtexels/sec
GeForce RTX 3080 12 GB		352800 Mtexels/sec
	Difference: 201600 (57%)

Pixel Rate

The GeForce RTX 4070 Ti should be much (approximately 31%) faster with regards to FSAA than the GeForce RTX 3080 12 GB, and should be able to handle higher resolutions better. (explain)

GeForce RTX 4070 Ti		184800 Mpixels/sec
GeForce RTX 3080 12 GB		141120 Mpixels/sec
	Difference: 43680 (31%)

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 information (counted in megabytes per second) that can be transferred across the external memory interface in a second. It is calculated by multiplying the card's bus width by the speed of its memory. If it uses DDR type RAM, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.