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Radeon R9 280 vs Radeon RX 460

Intro

The Radeon R9 280 makes use of a 28 nm design. AMD has clocked the core frequency at 933 MHz. The GDDR5 RAM is set to run at a frequency of 1250 MHz on this card. It features 1792 SPUs along with 112 TAUs and 32 ROPs.

Compare that to the Radeon RX 460, which features a GPU core clock speed of 1090 MHz, and 4096 MB of GDDR5 RAM set to run at 1750 MHz through a 128-bit bus. It also is made up of 896 SPUs, 56 Texture Address Units, 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

Theoretically speaking, the Radeon R9 280 is 114% quicker than the Radeon RX 460 overall, because of its higher data rate. (explain)

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

Texel Rate

The Radeon R9 280 should be quite a bit (about 71%) more effective at 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 should be quite a bit (approximately 71%) faster with regards to anti-aliasing than the Radeon RX 460, and also will be capable of handling higher resolutions without losing too much performance. (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

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.

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: Bandwidth is the largest amount of information (in units of megabytes per second) that can be transported past the external memory interface within a second. The number is calculated by multiplying the bus width by the speed of its memory. If the card has DDR type RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed 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 higher this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly record to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the max 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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