GeForce RTX 2080 Ti vs GeForce RTX 4080

Intro

Compare that to the GeForce RTX 4080, which comes with GPU core speed of 2205 MHz, and 16384 MB of GDDR6X RAM set to run at 1400 MHz through a 256-bit bus. It also is comprised of 9728 Stream Processors, 304 Texture Address Units, and 112 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce RTX 2080 Ti		250 Watts
GeForce RTX 4080		320 Watts
	Difference: 70 Watts (28%)

Memory Bandwidth

In theory, the GeForce RTX 4080 should be 16% faster than the GeForce RTX 2080 Ti in general, due to its higher bandwidth. (explain)

GeForce RTX 4080		734003 MB/sec
GeForce RTX 2080 Ti		630784 MB/sec
	Difference: 103219 (16%)

Texel Rate

The GeForce RTX 4080 will be a lot (about 83%) more effective at anisotropic filtering than the GeForce RTX 2080 Ti. (explain)

GeForce RTX 4080		670320 Mtexels/sec
GeForce RTX 2080 Ti		367200 Mtexels/sec
	Difference: 303120 (83%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce RTX 4080 is the winner, by a large margin. (explain)

GeForce RTX 4080		246960 Mpixels/sec
GeForce RTX 2080 Ti		118800 Mpixels/sec
	Difference: 128160 (108%)

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 (in units of MB per second) that can be transferred over the external memory interface in one second. It's calculated by multiplying the card's interface width by its memory clock speed. In the case of DDR RAM, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Raster Operations Pipelines by the the card's 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 also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.