GeForce RTX 3080 Ti vs GeForce RTX 4080

Intro

Compare those specs to the GeForce RTX 4080, which has a clock speed of 2205 MHz and a GDDR6X memory speed of 1400 MHz. It also makes use of a 256-bit memory bus, and makes use of a 4 nm design. It is comprised of 9728 SPUs, 304 TAUs, and 112 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce RTX 4080		320 Watts
GeForce RTX 3080 Ti		350 Watts
	Difference: 30 Watts (9%)

Memory Bandwidth

The GeForce RTX 3080 Ti should in theory perform a lot faster than the GeForce RTX 4080 overall. (explain)

GeForce RTX 3080 Ti		934297 MB/sec
GeForce RTX 4080		734003 MB/sec
	Difference: 200294 (27%)

Texel Rate

The GeForce RTX 4080 will be much (approximately 53%) better at anisotropic filtering than the GeForce RTX 3080 Ti. (explain)

GeForce RTX 4080		670320 Mtexels/sec
GeForce RTX 3080 Ti		436800 Mtexels/sec
	Difference: 233520 (53%)

Pixel Rate

If using a high screen resolution is important to you, then the GeForce RTX 4080 is superior to the GeForce RTX 3080 Ti, by a large margin. (explain)

GeForce RTX 4080		246960 Mpixels/sec
GeForce RTX 3080 Ti		152880 Mpixels/sec
	Difference: 94080 (62%)

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 (counted in MB per second) that can be transferred across the external memory interface within a second. It is calculated by multiplying the card's interface width by its memory clock speed. In the case of DDR RAM, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. 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 are processed per second. This figure is worked out by multiplying the total texture units of the card by the core clock speed of the chip. The higher this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly record to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.