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Radeon R9 280 vs Radeon RX 480

Intro

The Radeon R9 280 features a GPU clock speed of 933 MHz, and the 3072 MB of GDDR5 RAM is set to run at 1250 MHz through a 384-bit bus. It also is made up of 1792 Stream Processors, 112 Texture Address Units, and 32 Raster Operation Units.

Compare all that to the Radeon RX 480, which features a core clock frequency of 1120 MHz and a GDDR5 memory frequency of 2000 MHz. It also features a 256-bit bus, and makes use of a 14 nm design. It is made up of 2304 SPUs, 144 Texture Address Units, and 32 Raster Operation Units.

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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 480 13349 points
Radeon R9 280 7961 points
Difference: 5388 (68%)

Zcash Mining Hash Rate

Radeon RX 480 280 Sol/s
Radeon R9 280 183 Sol/s
Difference: 97 (53%)

Ethereum Mining Hash Rate

Radeon RX 480 27 Mh/s
Radeon R9 280 22 Mh/s
Difference: 5 (23%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 480 150 Watts
Radeon R9 280 250 Watts
Difference: 100 Watts (67%)

Memory Bandwidth

Theoretically speaking, the Radeon RX 480 is 9% faster than the Radeon R9 280 overall, because of its greater bandwidth. (explain)

Radeon RX 480 262144 MB/sec
Radeon R9 280 240000 MB/sec
Difference: 22144 (9%)

Texel Rate

The Radeon RX 480 is quite a bit (about 54%) more effective at anisotropic filtering than the Radeon R9 280. (explain)

Radeon RX 480 161280 Mtexels/sec
Radeon R9 280 104496 Mtexels/sec
Difference: 56784 (54%)

Pixel Rate

The Radeon RX 480 is a little bit (approximately 20%) better at full screen anti-aliasing than the Radeon R9 280, and also able to handle higher screen resolutions better. (explain)

Radeon RX 480 35840 Mpixels/sec
Radeon R9 280 29856 Mpixels/sec
Difference: 5984 (20%)

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

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Radeon R9 280

Amazon.com

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Radeon RX 480

Amazon.com

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Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

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Model Radeon R9 280 Radeon RX 480
Manufacturer AMD AMD
Year March 2014 June 2016
Code Name Tahiti Pro Polaris 10
Memory 3072 MB 8192 MB
Core Speed 933 MHz 1120 MHz
Memory Speed 5000 MHz 8000 MHz
Power (Max TDP) 250 watts 150 watts
Bandwidth 240000 MB/sec 262144 MB/sec
Texel Rate 104496 Mtexels/sec 161280 Mtexels/sec
Pixel Rate 29856 Mpixels/sec 35840 Mpixels/sec
Unified Shaders 1792 2304
Texture Mapping Units 112 144
Render Output Units 32 32
Bus Type GDDR5 GDDR5
Bus Width 384-bit 256-bit
Fab Process 28 nm 14 nm
Transistors 4313 million 5700 million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 11.2 DirectX 12.0
OpenGL Version OpenGL 4.3 OpenGL 4.5

Memory Bandwidth: Bandwidth is the largest amount of data (measured in MB per second) that can be transported past the external memory interface within a second. It is worked out by multiplying the card's interface width by its memory clock speed. If it uses DDR RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better 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 are processed per second. This number is calculated by multiplying the total number of texture units by the core clock speed of the chip. The better the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly record to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of colour ROPs by the clock speed of the card. 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 fill rate also depends on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

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Radeon R9 280

Amazon.com

Check prices at:

Radeon RX 480

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

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