GeForce RTX 2080 Ti vs GeForce RTX 4080

Intro

Compare all of that to the GeForce RTX 4080, which comes with clock speeds of 2205 MHz on the GPU, and 1400 MHz on the 16384 MB of GDDR6X memory. It features 9728 SPUs as well as 304 TAUs 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% quicker than the GeForce RTX 2080 Ti overall, due to its higher data rate. (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 (approximately 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

The GeForce RTX 4080 should be quite a bit (more or less 108%) more effective at AA than the GeForce RTX 2080 Ti, and will 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: Bandwidth is the largest amount of data (measured in MB per second) that can be moved across the external memory interface in one second. It's calculated by multiplying the bus width by its memory clock speed. If the card has DDR RAM, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the better 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 number of texture map elements (texels) that are applied in one second. This is worked out by multiplying the total 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 handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly record to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel 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 max fill rate.