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Radeon R9 280 vs Radeon RX 6600 XT

Intro

The Radeon R9 280 features a clock frequency of 933 MHz and a GDDR5 memory speed of 1250 MHz. It also uses a 384-bit bus, and uses a 28 nm design. It features 1792 SPUs, 112 TAUs, and 32 ROPs.

Compare those specifications to the Radeon RX 6600 XT, which features a GPU core clock speed of 1968 MHz, and 8192 MB of GDDR6 memory set to run at 2000 MHz through a 128-bit bus. It also features 2048 SPUs, 128 Texture Address Units, and 64 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 6600 XT 160 Watts
Radeon R9 280 250 Watts
Difference: 90 Watts (56%)

Memory Bandwidth

Theoretically, the Radeon RX 6600 XT should be a little bit faster than the Radeon R9 280 overall. (explain)

Radeon RX 6600 XT 262144 MB/sec
Radeon R9 280 240000 MB/sec
Difference: 22144 (9%)

Texel Rate

The Radeon RX 6600 XT is much (about 141%) faster with regards to AF than the Radeon R9 280. (explain)

Radeon RX 6600 XT 251904 Mtexels/sec
Radeon R9 280 104496 Mtexels/sec
Difference: 147408 (141%)

Pixel Rate

If using a high screen resolution is important to you, then the Radeon RX 6600 XT is the winner, by a large margin. (explain)

Radeon RX 6600 XT 125952 Mpixels/sec
Radeon R9 280 29856 Mpixels/sec
Difference: 96096 (322%)

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 6600 XT

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 6600 XT
Manufacturer AMD AMD
Year March 2014 August 2021
Code Name Tahiti Pro Navi 23 XT
Memory 3072 MB 8192 MB
Core Speed 933 MHz 1968 MHz
Memory Speed 5000 MHz 4000 GB/s
Power (Max TDP) 250 watts 160 watts
Bandwidth 240000 MB/sec 262144 MB/sec
Texel Rate 104496 Mtexels/sec 251904 Mtexels/sec
Pixel Rate 29856 Mpixels/sec 125952 Mpixels/sec
Unified Shaders 1792 2048
Texture Mapping Units 112 128
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 maximum amount of data (counted in MB per second) that can be transferred over the external memory interface in a second. It's calculated by multiplying the bus width by its memory speed. If the card has DDR type memory, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

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

Display Prices

Hide Prices

Radeon R9 280

Amazon.com

Check prices at:

Radeon RX 6600 XT

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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