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Radeon R9 280 vs Radeon RX 6600

Intro

The Radeon R9 280 uses a 28 nm design. AMD has clocked the core speed at 933 MHz. The GDDR5 RAM runs at a frequency of 1250 MHz on this specific model. It features 1792 SPUs as well as 112 TAUs and 32 ROPs.

Compare those specs to the Radeon RX 6600, which features a GPU core clock speed of 1626 MHz, and 8192 MB of GDDR6 memory running at 1750 MHz through a 128-bit bus. It also features 1792 Stream Processors, 112 Texture Address Units, and 64 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 6600 132 Watts
Radeon R9 280 250 Watts
Difference: 118 Watts (89%)

Memory Bandwidth

As far as performance goes, the Radeon R9 280 should in theory be just a bit better than the Radeon RX 6600 in general. (explain)

Radeon R9 280 240000 MB/sec
Radeon RX 6600 229376 MB/sec
Difference: 10624 (5%)

Texel Rate

The Radeon RX 6600 will be much (approximately 74%) more effective at AF than the Radeon R9 280. (explain)

Radeon RX 6600 182112 Mtexels/sec
Radeon R9 280 104496 Mtexels/sec
Difference: 77616 (74%)

Pixel Rate

If using a high resolution is important to you, then the Radeon RX 6600 is superior to the Radeon R9 280, and very much so. (explain)

Radeon RX 6600 104064 Mpixels/sec
Radeon R9 280 29856 Mpixels/sec
Difference: 74208 (249%)

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 6600

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 6600
Manufacturer AMD AMD
Year March 2014 October 2021
Code Name Tahiti Pro Navi 23
Memory 3072 MB 8192 MB
Core Speed 933 MHz 1626 MHz
Memory Speed 5000 MHz 3500 GB/s
Power (Max TDP) 250 watts 132 watts
Bandwidth 240000 MB/sec 229376 MB/sec
Texel Rate 104496 Mtexels/sec 182112 Mtexels/sec
Pixel Rate 29856 Mpixels/sec 104064 Mpixels/sec
Unified Shaders 1792 1792
Texture Mapping Units 112 112
Render Output Units 32 64
Bus Type GDDR5 GDDR6
Bus Width 384-bit 128-bit
Fab Process 28 nm 7 nm
Transistors 4313 million 11060 million
Bus PCIe 3.0 x16 PCIe 4.0 x16
DirectX Version DirectX 11.2 DirectX 12
OpenGL Version OpenGL 4.3 OpenGL 4.6

Memory Bandwidth: Bandwidth is the max amount of data (in units of megabytes per second) that can be transferred over the external memory interface within a second. The number is calculated by multiplying the card's bus width by its memory speed. In the case of DDR RAM, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed per second. This figure is calculated by multiplying the total texture units of the card by the core speed of the chip. The higher the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly write to the 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 filling the screen with pixels (the image). The actual pixel output rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.

Display Prices

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Radeon R9 280

Amazon.com

Check prices at:

Radeon RX 6600

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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