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Radeon R9 280 vs Radeon RX 480 4GB

Intro

The Radeon R9 280 has core speeds of 933 MHz on the GPU, and 1250 MHz on the 3072 MB of GDDR5 memory. It features 1792 SPUs along with 112 TAUs and 32 ROPs.

Compare those specifications to the Radeon RX 480 4GB, which makes use of a 14 nm design. AMD has set the core speed at 1120 MHz. The GDDR5 memory works at a speed of 1750 MHz on this specific card. It features 2304 SPUs as well as 144 Texture Address Units and 32 ROPs.

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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.

Zcash Mining Hash Rate

Radeon RX 480 4GB 267 Sol/s
Radeon R9 280 183 Sol/s
Difference: 84 (46%)

Ethereum Mining Hash Rate

Radeon RX 480 4GB 25 Mh/s
Radeon R9 280 22 Mh/s
Difference: 3 (14%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 480 4GB 150 Watts
Radeon R9 280 250 Watts
Difference: 100 Watts (67%)

Memory Bandwidth

The Radeon R9 280 should in theory perform a small bit faster than the Radeon RX 480 4GB overall. (explain)

Radeon R9 280 240000 MB/sec
Radeon RX 480 4GB 229376 MB/sec
Difference: 10624 (5%)

Texel Rate

The Radeon RX 480 4GB is a lot (approximately 54%) more effective at anisotropic filtering than the Radeon R9 280. (explain)

Radeon RX 480 4GB 161280 Mtexels/sec
Radeon R9 280 104496 Mtexels/sec
Difference: 56784 (54%)

Pixel Rate

If running with a high resolution is important to you, then the Radeon RX 480 4GB is the winner, not by a very large margin though. (explain)

Radeon RX 480 4GB 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

Radeon RX 480 4GB

Amazon.com

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 4GB
Manufacturer AMD AMD
Year March 2014 June 2016
Code Name Tahiti Pro Polaris 10
Memory 3072 MB 4096 MB
Core Speed 933 MHz 1120 MHz
Memory Speed 5000 MHz 7000 MHz
Power (Max TDP) 250 watts 150 watts
Bandwidth 240000 MB/sec 229376 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: Memory bandwidth is the maximum amount of information (in units of MB per second) that can be transferred over the external memory interface within a second. It's worked out by multiplying the card's interface width by its memory clock speed. If the card has DDR type memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. 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 texture map elements (texels) that can be applied per second. This is worked out by multiplying the total amount of texture units of the card by the core speed of the chip. The better the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

Hide Prices

Radeon R9 280

Amazon.com

Radeon RX 480 4GB

Amazon.com

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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