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Radeon RX 590 vs Radeon RX 6650 XT

Intro

The Radeon RX 590 features a core clock frequency of 1469 MHz and a GDDR5 memory frequency of 2000 MHz. It also makes use of a 256-bit bus, and makes use of a 12 nm design. It is made up of 2304 SPUs, 144 TAUs, and 32 ROPs.

Compare those specs to the Radeon RX 6650 XT, which features a GPU core clock speed of 2055 MHz, and 8192 MB of GDDR6 RAM set to run at 2190 MHz through a 128-bit bus. It also is comprised of 2048 Stream Processors, 128 TAUs, and 64 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 590 175 Watts
Radeon RX 6650 XT 176 Watts
Difference: 1 Watts (1%)

Memory Bandwidth

The Radeon RX 6650 XT should theoretically be a little bit faster than the Radeon RX 590 overall. (explain)

Radeon RX 6650 XT 287072 MB/sec
Radeon RX 590 262144 MB/sec
Difference: 24928 (10%)

Texel Rate

The Radeon RX 6650 XT will be a lot (about 24%) more effective at anisotropic filtering than the Radeon RX 590. (explain)

Radeon RX 6650 XT 263040 Mtexels/sec
Radeon RX 590 211536 Mtexels/sec
Difference: 51504 (24%)

Pixel Rate

If using a high resolution is important to you, then the Radeon RX 6650 XT is a better choice, by far. (explain)

Radeon RX 6650 XT 131520 Mpixels/sec
Radeon RX 590 47008 Mpixels/sec
Difference: 84512 (180%)

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 RX 590

Amazon.com

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Radeon RX 6650 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 RX 590 Radeon RX 6650 XT
Manufacturer AMD AMD
Year November 2018 May 2022
Code Name Polaris 30 Navi 23
Memory 8192 MB 8192 MB
Core Speed 1469 MHz 2055 MHz
Memory Speed 8000 MHz 4380 GB/s
Power (Max TDP) 175 watts 176 watts
Bandwidth 262144 MB/sec 287072 MB/sec
Texel Rate 211536 Mtexels/sec 263040 Mtexels/sec
Pixel Rate 47008 Mpixels/sec 131520 Mpixels/sec
Unified Shaders 2304 2048
Texture Mapping Units 144 128
Render Output Units 32 64
Bus Type GDDR5 GDDR6
Bus Width 256-bit 128-bit
Fab Process 12 nm 7 nm
Transistors 5700 million 11060 million
Bus PCIe 3.0 x16 PCIe 4.0 x16
DirectX Version DirectX 12.0 DirectX 12
OpenGL Version OpenGL 4.5 OpenGL 4.6

Memory Bandwidth: Bandwidth is the largest amount of data (measured in MB per second) that can be moved over the external memory interface within a second. The number is calculated by multiplying the interface width by its memory speed. If the card has DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied per second. This is calculated by multiplying the total texture units by the core clock speed of the chip. The higher the texel rate, the better the 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 the graphics card can possibly write to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

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Radeon RX 590

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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