GeForce RTX 2080 SUPER vs Radeon R9 285

Intro

Compare those specs to the Radeon R9 285, which has a clock speed of 918 MHz and a GDDR5 memory speed of 1375 MHz. It also uses a 256-bit memory bus, and uses a 28 nm design. It is made up of 1792 SPUs, 112 TAUs, and 32 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 285		190 Watts
GeForce RTX 2080 SUPER		250 Watts
	Difference: 60 Watts (32%)

Memory Bandwidth

In theory, the GeForce RTX 2080 SUPER should be quite a bit faster than the Radeon R9 285 in general. (explain)

GeForce RTX 2080 SUPER		507904 MB/sec
Radeon R9 285		176000 MB/sec
	Difference: 331904 (189%)

Texel Rate

The GeForce RTX 2080 SUPER is a lot (more or less 208%) more effective at anisotropic filtering than the Radeon R9 285. (explain)

GeForce RTX 2080 SUPER		316800 Mtexels/sec
Radeon R9 285		102816 Mtexels/sec
	Difference: 213984 (208%)

Pixel Rate

If using a high resolution is important to you, then the GeForce RTX 2080 SUPER is the winner, by a large margin. (explain)

GeForce RTX 2080 SUPER		105600 Mpixels/sec
Radeon R9 285		29376 Mpixels/sec
	Difference: 76224 (259%)

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 largest amount of data (in units of megabytes per second) that can be transported over the external memory interface in a second. The number is calculated by multiplying the bus width by its memory clock speed. In the case of DDR type memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied per 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 better the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the most pixels the video card can possibly record to the local memory in a 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 - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.