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Radeon R9 280X vs Radeon RX 480

Intro

The Radeon R9 280X has clock speeds of 850 MHz on the GPU, and 1500 MHz on the 3072 MB of GDDR5 memory. It features 2048 SPUs as well as 128 Texture Address Units and 32 ROPs.

Compare those specs to the Radeon RX 480, which comes with a GPU core clock speed of 1120 MHz, and 8192 MB of GDDR5 memory set to run at 2000 MHz through a 256-bit bus. It also is comprised of 2304 Stream Processors, 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 280X 8886 points
Difference: 4463 (50%)

Zcash Mining Hash Rate

Radeon R9 280X 294 Sol/s
Radeon RX 480 280 Sol/s
Difference: 14 (5%)

Ethereum Mining Hash Rate

Radeon RX 480 27 Mh/s
Radeon R9 280X 21 Mh/s
Difference: 6 (29%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

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

Memory Bandwidth

Theoretically speaking, the Radeon R9 280X is 10% faster than the Radeon RX 480 in general, because of its greater bandwidth. (explain)

Radeon R9 280X 288000 MB/sec
Radeon RX 480 262144 MB/sec
Difference: 25856 (10%)

Texel Rate

The Radeon RX 480 will be a lot (about 48%) more effective at AF than the Radeon R9 280X. (explain)

Radeon RX 480 161280 Mtexels/sec
Radeon R9 280X 108800 Mtexels/sec
Difference: 52480 (48%)

Pixel Rate

The Radeon RX 480 is much (more or less 32%) more effective at anti-aliasing than the Radeon R9 280X, and will be capable of handling higher resolutions better. (explain)

Radeon RX 480 35840 Mpixels/sec
Radeon R9 280X 27200 Mpixels/sec
Difference: 8640 (32%)

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 280X

Amazon.com

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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.

Specifications

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Model Radeon R9 280X Radeon RX 480
Manufacturer AMD AMD
Year October 2013 June 2016
Code Name Tahiti XTL Polaris 10
Memory 3072 MB 8192 MB
Core Speed 850 MHz 1120 MHz
Memory Speed 6000 MHz 8000 MHz
Power (Max TDP) 250 watts 150 watts
Bandwidth 288000 MB/sec 262144 MB/sec
Texel Rate 108800 Mtexels/sec 161280 Mtexels/sec
Pixel Rate 27200 Mpixels/sec 35840 Mpixels/sec
Unified Shaders 2048 2304
Texture Mapping Units 128 144
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 data (counted in megabytes per second) that can be transported over the external memory interface within a second. It is worked out by multiplying the card's interface width by its memory speed. In the case of DDR type RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied in one second. This figure is calculated by multiplying the total texture units by the core clock speed of the chip. The higher the texel rate, the better the 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 most pixels that the graphics chip can possibly record to its local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Raster Operations Pipelines by the the core 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 max fill rate.

Display Prices

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Radeon R9 280X

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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