GeForce RTX 3080 12 GB vs Radeon R9 270X

Intro

Compare those specs to the Radeon R9 270X, which features a clock frequency of 1000 MHz and a GDDR5 memory frequency of 1400 MHz. It also uses a 256-bit memory bus, and uses a 28 nm design. It is made up of 1280 SPUs, 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

The GeForce RTX 3080 12 GB should theoretically be much faster than the Radeon R9 270X in general. (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 is quite a bit (approximately 341%) faster with regards to AF 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 using lots of anti-aliasing is important to you, then the GeForce RTX 3080 12 GB is a better choice, 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: Bandwidth is the max amount of data (measured in megabytes per second) that can be transported across the external memory interface in a second. The number is worked out by multiplying the card's interface width by the speed of its memory. In the case of DDR RAM, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, 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 of the card by the core clock speed of the chip. The higher this number, the better the card will be at handling 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 per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.