Radeon R9 285 vs Radeon RX 590

Intro

Compare those specs to the Radeon RX 590, which has core clock speeds of 1469 MHz on the GPU, and 2000 MHz on the 8192 MB of GDDR5 RAM. It features 2304 SPUs along with 144 Texture Address Units and 32 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 590		175 Watts
Radeon R9 285		190 Watts
	Difference: 15 Watts (9%)

Memory Bandwidth

As far as performance goes, the Radeon RX 590 should theoretically be a lot better than the Radeon R9 285 overall. (explain)

Radeon RX 590		262144 MB/sec
Radeon R9 285		176000 MB/sec
	Difference: 86144 (49%)

Texel Rate

The Radeon RX 590 is a lot (more or less 106%) more effective at texture filtering than the Radeon R9 285. (explain)

Radeon RX 590		211536 Mtexels/sec
Radeon R9 285		102816 Mtexels/sec
	Difference: 108720 (106%)

Pixel Rate

If using a high screen resolution is important to you, then the Radeon RX 590 is a better choice, and very much so. (explain)

Radeon RX 590		47008 Mpixels/sec
Radeon R9 285		29376 Mpixels/sec
	Difference: 17632 (60%)

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 MB per second) that can be moved across the external memory interface in one second. It's calculated by multiplying the interface width by the speed of its memory. If it uses DDR memory, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied per second. This figure is worked out by multiplying the total texture units 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 applied per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly write to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.