Radeon R9 285 vs Radeon RX 460 2GB

Intro

Compare those specs to the Radeon RX 460 2GB, which comes with core clock speeds of 1090 MHz on the GPU, and 1750 MHz on the 2048 MB of GDDR5 memory. It features 896 SPUs as well as 56 Texture Address Units and 16 Rasterization Operator Units.

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

As far as performance goes, the Radeon R9 285 should in theory be quite a bit better 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 quite a bit (approximately 68%) more effective at texture 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 should be much (more or less 68%) better at anti-aliasing than the Radeon RX 460 2GB, and should 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 data (measured in MB per second) that can be transferred over the external memory interface in one second. It's calculated by multiplying the card's interface width by the speed of its memory. In the case of DDR RAM, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed per second. This number is calculated by multiplying the total amount of texture units by the core clock speed of the chip. The better the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly record to its local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as 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, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.