GeForce RTX 2080 Ti vs GeForce RTX 4080

Intro

Compare those specifications to the GeForce RTX 4080, which features GPU clock speed of 2205 MHz, and 16384 MB of GDDR6X RAM set to run at 1400 MHz through a 256-bit bus. It also features 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

Theoretically speaking, the GeForce RTX 4080 should perform a little bit faster than the GeForce RTX 2080 Ti overall. (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 quite a bit (more or less 83%) better at texture 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

The GeForce RTX 4080 will be much (more or less 108%) more effective at AA than the GeForce RTX 2080 Ti, and should be capable of handling higher screen resolutions more effectively. (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 largest amount of information (in units of MB per second) that can be moved across the external memory interface within a second. It's worked out by multiplying the card's bus width by the speed of its memory. In the case of DDR memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better 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 processed per second. This number is calculated by multiplying the total number of texture units by the core clock speed of the chip. The higher the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly record to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.