GeForce RTX 3080 Ti vs Radeon R9 280X

Intro

Compare those specifications to the Radeon R9 280X, which has clock speeds of 850 MHz on the GPU, and 1500 MHz on the 3072 MB of GDDR5 RAM. It features 2048 SPUs along with 128 TAUs and 32 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 280X		250 Watts
GeForce RTX 3080 Ti		350 Watts
	Difference: 100 Watts (40%)

Memory Bandwidth

In theory, the GeForce RTX 3080 Ti will be 224% quicker than the Radeon R9 280X overall, due to its greater bandwidth. (explain)

GeForce RTX 3080 Ti		934297 MB/sec
Radeon R9 280X		288000 MB/sec
	Difference: 646297 (224%)

Texel Rate

The GeForce RTX 3080 Ti is quite a bit (approximately 301%) faster with regards to texture filtering than the Radeon R9 280X. (explain)

GeForce RTX 3080 Ti		436800 Mtexels/sec
Radeon R9 280X		108800 Mtexels/sec
	Difference: 328000 (301%)

Pixel Rate

The GeForce RTX 3080 Ti is much (about 462%) more effective at AA than the Radeon R9 280X, and also will be able to handle higher screen resolutions more effectively. (explain)

GeForce RTX 3080 Ti		152880 Mpixels/sec
Radeon R9 280X		27200 Mpixels/sec
	Difference: 125680 (462%)

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 information (in units of megabytes per second) that can be transported across the external memory interface in one second. The number is worked out by multiplying the card's interface width by its memory clock speed. If it uses DDR type RAM, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the faster 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 per second. This is worked out by multiplying the total texture units of the card by the core speed of the chip. The higher this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly record to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of ROPs by the the card's clock speed. 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 also depends on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.