GeForce RTX 3080 12 GB vs Radeon HD 3850 X2

Intro

Compare all of that to the Radeon HD 3850 X2, which features a core clock speed of 668 MHz and a GDDR3 memory speed of 828 MHz. It also makes use of a 256-bit memory bus, and uses a 55 nm design. It is comprised of 320(64x5) SPUs, 16 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

The GeForce RTX 3080 12 GB should in theory be a lot faster than the Radeon HD 3850 X2 overall. (explain)

GeForce RTX 3080 12 GB		934298 MB/sec
Radeon HD 3850 X2		105984 MB/sec
	Difference: 828314 (782%)

Texel Rate

The GeForce RTX 3080 12 GB is quite a bit (about 1550%) faster with regards to anisotropic filtering than the Radeon HD 3850 X2. (explain)

GeForce RTX 3080 12 GB		352800 Mtexels/sec
Radeon HD 3850 X2		21376 Mtexels/sec
	Difference: 331424 (1550%)

Pixel Rate

If using a high resolution is important to you, then the GeForce RTX 3080 12 GB is a better choice, by a large margin. (explain)

GeForce RTX 3080 12 GB		141120 Mpixels/sec
Radeon HD 3850 X2		21376 Mpixels/sec
	Difference: 119744 (560%)

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.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

Specifications

Memory Bandwidth: Memory bandwidth is the largest amount of data (in units of megabytes per second) that can be moved across the external memory interface in one second. It's worked out by multiplying the bus width by its memory speed. If the card has DDR type RAM, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better 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 number of texture map elements (texels) that are processed in one second. This is calculated by multiplying the total amount of texture units by the core clock speed of the chip. The better this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes 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 ability to reach the max fill rate.