Radeon R9 285 vs Radeon RX 460 2GB

Intro

Compare those specifications to the Radeon RX 460 2GB, which uses a 14 nm design. AMD has clocked the core speed at 1090 MHz. The GDDR5 memory works at a speed of 1750 MHz on this card. It features 896 SPUs along with 56 TAUs and 16 ROPs.

Display Graphs

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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

Performance-wise, the Radeon R9 285 should in theory be quite a bit superior to the Radeon RX 460 2GB in general. (explain)

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

Texel Rate

The Radeon R9 285 will be a lot (about 68%) faster with regards to 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

The Radeon R9 285 is a lot (approximately 68%) better at anti-aliasing than the Radeon RX 460 2GB, and also will be capable of handling higher screen resolutions better. (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: Memory bandwidth is the largest amount of information (measured in MB per second) that can be transported over the external memory interface within a second. It is worked out by multiplying the interface width by the speed of its memory. If the card has DDR memory, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the 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 can be processed in one second. This number is calculated by multiplying the total amount of texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.