GeForce RTX 3080 12 GB vs Radeon HD 3850 X2

Intro

Compare that to the Radeon HD 3850 X2, which has GPU core speed of 668 MHz, and 512 MB of GDDR3 RAM running at 828 MHz through a 256-bit bus. It also is made up of 320(64x5) Stream Processors, 16 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the GeForce RTX 3080 12 GB is 782% quicker than the Radeon HD 3850 X2 in general, because of its higher bandwidth. (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 should be quite a bit (approximately 1550%) more effective at AF 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 the winner, and very much so. (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 maximum amount of information (in units of MB per second) that can be transferred across the external memory interface within a second. It is calculated by multiplying the interface width by its memory clock speed. If the card has DDR type RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed per second. This figure is calculated by multiplying the total number of 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 processed in a second.

Pixel Rate: Pixel rate is the most pixels the video card can possibly write to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.