GeForce RTX 3080 Ti vs GeForce RTX 4080

Intro

Compare all that to the GeForce RTX 4080, which makes use of a 4 nm design. nVidia has clocked the core speed at 2205 MHz. The GDDR6X RAM works at a speed of 1400 MHz on this card. 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 4080		320 Watts
GeForce RTX 3080 Ti		350 Watts
	Difference: 30 Watts (9%)

Memory Bandwidth

Theoretically, the GeForce RTX 3080 Ti should perform a lot faster than the GeForce RTX 4080 in general. (explain)

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

Texel Rate

The GeForce RTX 4080 should be much (more or less 53%) more effective at AF 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 running with high levels of AA 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 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: Memory bandwidth is the maximum amount of data (in units of megabytes per second) that can be transported past the external memory interface in one second. It's worked out by multiplying the interface width by the speed of its memory. If it uses DDR 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 faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied in one second. This figure is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The better the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly record to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of colour ROPs by the the core clock speed. 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 lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.