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Radeon R9 280 vs Radeon RX 6650 XT

Intro

The Radeon R9 280 has core speeds of 933 MHz on the GPU, and 1250 MHz on the 3072 MB of GDDR5 memory. It features 1792 SPUs along with 112 TAUs and 32 Rasterization Operator Units.

Compare those specs to the Radeon RX 6650 XT, which features a core clock frequency of 2055 MHz and a GDDR6 memory frequency of 2190 MHz. It also uses a 128-bit bus, and makes use of a 7 nm design. It is made up of 2048 SPUs, 128 TAUs, and 64 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 6650 XT 176 Watts
Radeon R9 280 250 Watts
Difference: 74 Watts (42%)

Memory Bandwidth

As far as performance goes, the Radeon RX 6650 XT should theoretically be a bit superior to the Radeon R9 280 in general. (explain)

Radeon RX 6650 XT 287072 MB/sec
Radeon R9 280 240000 MB/sec
Difference: 47072 (20%)

Texel Rate

The Radeon RX 6650 XT should be quite a bit (approximately 152%) better at AF than the Radeon R9 280. (explain)

Radeon RX 6650 XT 263040 Mtexels/sec
Radeon R9 280 104496 Mtexels/sec
Difference: 158544 (152%)

Pixel Rate

The Radeon RX 6650 XT is much (more or less 341%) faster with regards to FSAA than the Radeon R9 280, and able to handle higher screen resolutions while still performing well. (explain)

Radeon RX 6650 XT 131520 Mpixels/sec
Radeon R9 280 29856 Mpixels/sec
Difference: 101664 (341%)

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 6650 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 6650 XT
Manufacturer AMD AMD
Year March 2014 May 2022
Code Name Tahiti Pro Navi 23
Memory 3072 MB 8192 MB
Core Speed 933 MHz 2055 MHz
Memory Speed 5000 MHz 4380 GB/s
Power (Max TDP) 250 watts 176 watts
Bandwidth 240000 MB/sec 287072 MB/sec
Texel Rate 104496 Mtexels/sec 263040 Mtexels/sec
Pixel Rate 29856 Mpixels/sec 131520 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: Memory bandwidth is the largest amount of data (measured in MB per second) that can be transferred past the external memory interface in one second. It is worked out by multiplying the card's bus width by its memory clock speed. If it uses DDR type memory, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed in one second. This number is calculated by multiplying the total texture units by the core speed of the chip. The higher the texel rate, the better the video 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 the graphics card can possibly write to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the amount of ROPs by the the card's 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 is also dependant on lots of other factors, most notably the memory bandwidth of the card - 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 6650 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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