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Radeon R9 280 vs Radeon RX 6700 XT

Intro

The Radeon R9 280 uses a 28 nm design. AMD has set the core speed at 933 MHz. The GDDR5 RAM works at a frequency of 1250 MHz on this specific model. It features 1792 SPUs as well as 112 Texture Address Units and 32 Rasterization Operator Units.

Compare those specifications to the Radeon RX 6700 XT, which has GPU core speed of 2321 MHz, and (Unknown) MB of GDDR6 RAM running at 2000 MHz through a 192-bit bus. It also is comprised of 2560 SPUs, 160 TAUs, and 64 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

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

Memory Bandwidth

Theoretically, the Radeon RX 6700 XT should be a lot faster than the Radeon R9 280 overall. (explain)

Radeon RX 6700 XT 393216 MB/sec
Radeon R9 280 240000 MB/sec
Difference: 153216 (64%)

Texel Rate

The Radeon RX 6700 XT will be quite a bit (about 255%) more effective at anisotropic filtering than the Radeon R9 280. (explain)

Radeon RX 6700 XT 371360 Mtexels/sec
Radeon R9 280 104496 Mtexels/sec
Difference: 266864 (255%)

Pixel Rate

The Radeon RX 6700 XT will be a lot (about 398%) better at full screen anti-aliasing than the Radeon R9 280, and will be able to handle higher screen resolutions without losing too much performance. (explain)

Radeon RX 6700 XT 148544 Mpixels/sec
Radeon R9 280 29856 Mpixels/sec
Difference: 118688 (398%)

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 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 280 Radeon RX 6700 XT
Manufacturer AMD AMD
Year March 2014 March 2021
Code Name Tahiti Pro Navi 22
Memory 3072 MB (Unknown) MB
Core Speed 933 MHz 2321 MHz
Memory Speed 5000 MHz 4000 GB/s
Power (Max TDP) 250 watts 230 watts
Bandwidth 240000 MB/sec 393216 MB/sec
Texel Rate 104496 Mtexels/sec 371360 Mtexels/sec
Pixel Rate 29856 Mpixels/sec 148544 Mpixels/sec
Unified Shaders 1792 2560
Texture Mapping Units 112 160
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: Memory bandwidth is the maximum amount of data (measured in megabytes per second) that can be moved over the external memory interface within a second. It is worked out by multiplying the card's interface width by its memory clock speed. If it uses DDR memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed per second. This figure is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The better the texel rate, the better the video 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 card can possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount 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 rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the 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 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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