Radeon R9 285 vs Radeon RX 470 4GB

Intro

Compare those specs to the Radeon RX 470 4GB, which makes use of a 14 nm design. AMD has set the core speed at 926 MHz. The GDDR5 RAM runs at a frequency of 1650 MHz on this particular card. It features 2048 SPUs along with 128 TAUs and 32 Rasterization Operator Units.

Display Graphs

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

Ethereum Mining Hash Rate

Radeon RX 470 4GB		27 Mh/s
Radeon R9 285		18 Mh/s
	Difference: 9 (50%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 470 4GB		120 Watts
Radeon R9 285		190 Watts
	Difference: 70 Watts (58%)

Memory Bandwidth

The Radeon RX 470 4GB should in theory be just a bit faster than the Radeon R9 285 in general. (explain)

Radeon RX 470 4GB		211200 MB/sec
Radeon R9 285		176000 MB/sec
	Difference: 35200 (20%)

Texel Rate

The Radeon RX 470 4GB should be a bit (more or less 15%) better at AF than the Radeon R9 285. (explain)

Radeon RX 470 4GB		118528 Mtexels/sec
Radeon R9 285		102816 Mtexels/sec
	Difference: 15712 (15%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon RX 470 4GB is the winner, but not by far. (explain)

Radeon RX 470 4GB		29632 Mpixels/sec
Radeon R9 285		29376 Mpixels/sec
	Difference: 256 (1%)

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 maximum amount of information (measured in megabytes per second) that can be transported across the external memory interface in a second. The number is calculated by multiplying the card's bus width by its memory speed. In the case of DDR RAM, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied per second. This number is worked out by multiplying the total texture units by the core clock speed of the chip. The better this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly write to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Render Output Units by the clock 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 output rate also depends on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.