Radeon R9 285 vs Radeon RX 460 2GB

Intro

Compare those specifications to the Radeon RX 460 2GB, which makes use of a 14 nm design. AMD has clocked the core speed at 1090 MHz. The GDDR5 memory runs at a frequency of 1750 MHz on this specific card. It features 896 SPUs along with 56 Texture Address Units and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 460 2GB		75 Watts
Radeon R9 285		190 Watts
	Difference: 115 Watts (153%)

Memory Bandwidth

In theory, the Radeon R9 285 should be a lot faster than the Radeon RX 460 2GB overall. (explain)

Radeon R9 285		176000 MB/sec
Radeon RX 460 2GB		112000 MB/sec
	Difference: 64000 (57%)

Texel Rate

The Radeon R9 285 should be much (approximately 68%) better at anisotropic filtering than the Radeon RX 460 2GB. (explain)

Radeon R9 285		102816 Mtexels/sec
Radeon RX 460 2GB		61040 Mtexels/sec
	Difference: 41776 (68%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the Radeon R9 285 is the winner, and very much so. (explain)

Radeon R9 285		29376 Mpixels/sec
Radeon RX 460 2GB		17440 Mpixels/sec
	Difference: 11936 (68%)

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 largest amount of data (counted in megabytes per second) that can be transferred across the external memory interface in a second. It's worked out by multiplying the card's interface width by its memory speed. If it uses DDR type RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better 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 number of texture map elements (texels) that can be processed in one second. This number is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The better 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 maximum amount of pixels the video card could possibly record to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Render Output Units by the clock 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 rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.