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Radeon R9 280 vs Radeon RX 460

Intro

The Radeon R9 280 features a GPU core clock speed of 933 MHz, and the 3072 MB of GDDR5 memory runs at 1250 MHz through a 384-bit bus. It also is made up of 1792 SPUs, 112 TAUs, and 32 Raster Operation Units.

Compare those specifications to the Radeon RX 460, which makes use of a 14 nm design. AMD has clocked the core frequency at 1090 MHz. The GDDR5 memory is set to run at a speed of 1750 MHz on this model. It features 896 SPUs as well as 56 TAUs and 16 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.

3DMark Fire Strike Graphics Score

Radeon R9 280 7961 points
Radeon RX 460 5595 points
Difference: 2366 (42%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 460 75 Watts
Radeon R9 280 250 Watts
Difference: 175 Watts (233%)

Memory Bandwidth

The Radeon R9 280, in theory, should perform quite a bit faster than the Radeon RX 460 overall. (explain)

Radeon R9 280 240000 MB/sec
Radeon RX 460 112000 MB/sec
Difference: 128000 (114%)

Texel Rate

The Radeon R9 280 is much (approximately 71%) faster with regards to anisotropic filtering than the Radeon RX 460. (explain)

Radeon R9 280 104496 Mtexels/sec
Radeon RX 460 61040 Mtexels/sec
Difference: 43456 (71%)

Pixel Rate

The Radeon R9 280 is much (more or less 71%) better at full screen anti-aliasing than the Radeon RX 460, and should be capable of handling higher screen resolutions better. (explain)

Radeon R9 280 29856 Mpixels/sec
Radeon RX 460 17440 Mpixels/sec
Difference: 12416 (71%)

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 460

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 280 Radeon RX 460
Manufacturer AMD AMD
Year March 2014 August 2016
Code Name Tahiti Pro Polaris 11
Memory 3072 MB 4096 MB
Core Speed 933 MHz 1090 MHz
Memory Speed 5000 MHz 7000 MHz
Power (Max TDP) 250 watts 75 watts
Bandwidth 240000 MB/sec 112000 MB/sec
Texel Rate 104496 Mtexels/sec 61040 Mtexels/sec
Pixel Rate 29856 Mpixels/sec 17440 Mpixels/sec
Unified Shaders 1792 896
Texture Mapping Units 112 56
Render Output Units 32 16
Bus Type GDDR5 GDDR5
Bus Width 384-bit 128-bit
Fab Process 28 nm 14 nm
Transistors 4313 million 3000 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 transported over the external memory interface within a second. It is calculated by multiplying the bus width by the speed of its memory. If the card has DDR RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, 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 number of texture map elements (texels) that are applied per second. This 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 card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of ROPs 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 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

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Radeon R9 280

Amazon.com

Check prices at:

Radeon RX 460

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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