GeForce RTX 2080 Ti vs GeForce RTX 4080

Intro

Compare those specs to the GeForce RTX 4080, which features core 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 Texture Address Units and 112 ROPs.

Display Graphs

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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

Performance-wise, the GeForce RTX 4080 should theoretically be a bit better than the GeForce RTX 2080 Ti in general. (explain)

GeForce RTX 4080		734003 MB/sec
GeForce RTX 2080 Ti		630784 MB/sec
	Difference: 103219 (16%)

Texel Rate

The GeForce RTX 4080 is a lot (approximately 83%) faster with regards to 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 quite a bit (more or less 108%) better at FSAA than the GeForce RTX 2080 Ti, and should be capable of handling higher screen resolutions without losing too much performance. (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 transported across the external memory interface in one second. It's calculated by multiplying the card's bus width by its memory speed. In the case of DDR RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed in one second. This figure is calculated 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 texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.