GeForce RTX 3080 12 GB vs Radeon R9 270X

Intro

Compare those specifications to the Radeon R9 270X, which has core speeds of 1000 MHz on the GPU, and 1400 MHz on the 2048 MB of GDDR5 memory. It features 1280 SPUs along with 80 TAUs and 32 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 270X		180 Watts
GeForce RTX 3080 12 GB		350 Watts
	Difference: 170 Watts (94%)

Memory Bandwidth

As far as performance goes, the GeForce RTX 3080 12 GB should theoretically be a lot superior to the Radeon R9 270X overall. (explain)

GeForce RTX 3080 12 GB		934298 MB/sec
Radeon R9 270X		179200 MB/sec
	Difference: 755098 (421%)

Texel Rate

The GeForce RTX 3080 12 GB will be quite a bit (more or less 341%) faster with regards to texture filtering than the Radeon R9 270X. (explain)

GeForce RTX 3080 12 GB		352800 Mtexels/sec
Radeon R9 270X		80000 Mtexels/sec
	Difference: 272800 (341%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce RTX 3080 12 GB is the winner, by far. (explain)

GeForce RTX 3080 12 GB		141120 Mpixels/sec
Radeon R9 270X		32000 Mpixels/sec
	Difference: 109120 (341%)

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 max amount of information (measured in megabytes per second) that can be transferred over the external memory interface in one second. It's calculated by multiplying the interface width by its memory clock speed. If it uses DDR memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and high 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 texture units of the card by the core speed of the chip. The higher the texel rate, the better the graphics 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 most pixels the graphics card can possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.