Radeon R9 285 vs Radeon RX 470

Intro

Compare all that to the Radeon RX 470, which features GPU clock speed of 926 MHz, and 8192 MB of GDDR5 memory running at 1650 MHz through a 256-bit bus. It also is comprised of 2048 SPUs, 128 Texture Address Units, and 32 ROPs.

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.

3DMark Fire Strike Graphics Score

Radeon RX 470		11756 points
Radeon R9 285		8500 points
	Difference: 3256 (38%)

Ethereum Mining Hash Rate

Radeon RX 470		26 Mh/s
Radeon R9 285		18 Mh/s
	Difference: 8 (44%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

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

Memory Bandwidth

Theoretically, the Radeon RX 470 should perform a bit faster than the Radeon R9 285 overall. (explain)

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

Texel Rate

The Radeon RX 470 should be a small bit (about 15%) better at AF than the Radeon R9 285. (explain)

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

Pixel Rate

The Radeon RX 470 will be just a bit (about 1%) more effective at AA than the Radeon R9 285, and will be able to handle higher screen resolutions without losing too much performance. (explain)

Radeon RX 470		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: Bandwidth is the maximum amount of data (counted in MB per second) that can be transferred over the external memory interface within a second. The number is calculated by multiplying the bus width by the speed of its memory. If the card has DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly record to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.