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Radeon R9 280X vs Radeon RX 6700 XT

Intro

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

Compare that to the Radeon RX 6700 XT, which comes with a GPU core clock speed of 2321 MHz, and (Unknown) MB of GDDR6 memory set to run at 2000 MHz through a 192-bit bus. It also is comprised of 2560 Stream Processors, 160 Texture Address Units, and 64 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 6700 XT 230 Watts
Radeon R9 280X 250 Watts
Difference: 20 Watts (9%)

Memory Bandwidth

Theoretically speaking, the Radeon RX 6700 XT is 37% quicker than the Radeon R9 280X in general, because of its greater bandwidth. (explain)

Radeon RX 6700 XT 393216 MB/sec
Radeon R9 280X 288000 MB/sec
Difference: 105216 (37%)

Texel Rate

The Radeon RX 6700 XT should be quite a bit (more or less 241%) faster with regards to AF than the Radeon R9 280X. (explain)

Radeon RX 6700 XT 371360 Mtexels/sec
Radeon R9 280X 108800 Mtexels/sec
Difference: 262560 (241%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon RX 6700 XT is the winner, by a large margin. (explain)

Radeon RX 6700 XT 148544 Mpixels/sec
Radeon R9 280X 27200 Mpixels/sec
Difference: 121344 (446%)

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 6700 XT

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 280X Radeon RX 6700 XT
Manufacturer AMD AMD
Year October 2013 March 2021
Code Name Tahiti XTL Navi 22
Memory 3072 MB (Unknown) MB
Core Speed 850 MHz 2321 MHz
Memory Speed 6000 MHz 4000 GB/s
Power (Max TDP) 250 watts 230 watts
Bandwidth 288000 MB/sec 393216 MB/sec
Texel Rate 108800 Mtexels/sec 371360 Mtexels/sec
Pixel Rate 27200 Mpixels/sec 148544 Mpixels/sec
Unified Shaders 2048 2560
Texture Mapping Units 128 160
Render Output Units 32 64
Bus Type GDDR5 GDDR6
Bus Width 384-bit 192-bit
Fab Process 28 nm 7 nm
Transistors 4313 million 17200 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 largest amount of information (in units of megabytes per second) that can be transported across the external memory interface within a second. It's worked out by multiplying the bus width by its memory clock speed. If it uses DDR type memory, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly write to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.

Display Prices

Hide Prices

Radeon R9 280X

Amazon.com

Check prices at:

Radeon RX 6700 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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