Radeon R9 285 vs Radeon RX 480 4GB

Intro

Compare those specifications to the Radeon RX 480 4GB, which has core clock speeds of 1120 MHz on the GPU, and 1750 MHz on the 4096 MB of GDDR5 RAM. It features 2304 SPUs along with 144 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.

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Radeon RX 480 4GB		25 Mh/s
Radeon R9 285		18 Mh/s
	Difference: 7 (39%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 480 4GB		150 Watts
Radeon R9 285		190 Watts
	Difference: 40 Watts (27%)

Memory Bandwidth

Performance-wise, the Radeon RX 480 4GB should in theory be a lot better than the Radeon R9 285 overall. (explain)

Radeon RX 480 4GB		229376 MB/sec
Radeon R9 285		176000 MB/sec
	Difference: 53376 (30%)

Texel Rate

The Radeon RX 480 4GB should be much (approximately 57%) more effective at anisotropic filtering than the Radeon R9 285. (explain)

Radeon RX 480 4GB		161280 Mtexels/sec
Radeon R9 285		102816 Mtexels/sec
	Difference: 58464 (57%)

Pixel Rate

The Radeon RX 480 4GB should be quite a bit (about 22%) better at AA than the Radeon R9 285, and should be able to handle higher resolutions while still performing well. (explain)

Radeon RX 480 4GB		35840 Mpixels/sec
Radeon R9 285		29376 Mpixels/sec
	Difference: 6464 (22%)

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 max amount of data (counted in MB per second) that can be moved across the external memory interface in one second. It's worked out by multiplying the bus width by the speed of its memory. If the card has DDR RAM, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly write to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.