GeForce RTX 2080 vs GeForce RTX 4080

Intro

Compare that to the GeForce RTX 4080, which features clock speeds of 2205 MHz on the GPU, and 1400 MHz on the 16384 MB of GDDR6X RAM. 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		215 Watts
GeForce RTX 4080		320 Watts
	Difference: 105 Watts (49%)

Memory Bandwidth

Theoretically speaking, the GeForce RTX 4080 should be a lot faster than the GeForce RTX 2080 overall. (explain)

GeForce RTX 4080		734003 MB/sec
GeForce RTX 2080		458752 MB/sec
	Difference: 275251 (60%)

Texel Rate

The GeForce RTX 4080 is quite a bit (approximately 140%) more effective at texture filtering than the GeForce RTX 2080. (explain)

GeForce RTX 4080		670320 Mtexels/sec
GeForce RTX 2080		278760 Mtexels/sec
	Difference: 391560 (140%)

Pixel Rate

If using a high screen resolution is important to you, then the GeForce RTX 4080 is a better choice, and very much so. (explain)

GeForce RTX 4080		246960 Mpixels/sec
GeForce RTX 2080		96960 Mpixels/sec
	Difference: 150000 (155%)

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 maximum amount of data (counted in megabytes per second) that can be transported past the external memory interface in a second. It's worked out by multiplying the interface width by the speed of its memory. In the case of DDR type RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, 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 texture map elements (texels) that can be applied per second. This number is worked out by multiplying the total number of texture units by the core speed of the chip. The higher the texel rate, 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 amount of pixels that the graphics chip can possibly record to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of ROPs by the clock speed of the card. 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 many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.