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Radeon RX 480 4GB vs Radeon RX 6600 XT

Intro

The Radeon RX 480 4GB has a clock speed of 1120 MHz and a GDDR5 memory speed of 1750 MHz. It also makes use of a 256-bit bus, and uses a 14 nm design. It is made up of 2304 SPUs, 144 Texture Address Units, and 32 Raster Operation Units.

Compare those specs to the Radeon RX 6600 XT, which uses a 7 nm design. AMD has clocked the core speed at 1968 MHz. The GDDR6 memory runs at a speed of 2000 MHz on this specific model. It features 2048 SPUs as well as 128 TAUs and 64 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 480 4GB 150 Watts
Radeon RX 6600 XT 160 Watts
Difference: 10 Watts (7%)

Memory Bandwidth

As far as performance goes, the Radeon RX 6600 XT should theoretically be a little bit superior to the Radeon RX 480 4GB overall. (explain)

Radeon RX 6600 XT 262144 MB/sec
Radeon RX 480 4GB 229376 MB/sec
Difference: 32768 (14%)

Texel Rate

The Radeon RX 6600 XT should be a lot (more or less 56%) better at texture filtering than the Radeon RX 480 4GB. (explain)

Radeon RX 6600 XT 251904 Mtexels/sec
Radeon RX 480 4GB 161280 Mtexels/sec
Difference: 90624 (56%)

Pixel Rate

The Radeon RX 6600 XT is much (approximately 251%) better at FSAA than the Radeon RX 480 4GB, and also will be capable of handling higher screen resolutions while still performing well. (explain)

Radeon RX 6600 XT 125952 Mpixels/sec
Radeon RX 480 4GB 35840 Mpixels/sec
Difference: 90112 (251%)

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 480 4GB

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 RX 480 4GB Radeon RX 6600 XT
Manufacturer AMD AMD
Year June 2016 August 2021
Code Name Polaris 10 Navi 23 XT
Memory 4096 MB 8192 MB
Core Speed 1120 MHz 1968 MHz
Memory Speed 7000 MHz 4000 GB/s
Power (Max TDP) 150 watts 160 watts
Bandwidth 229376 MB/sec 262144 MB/sec
Texel Rate 161280 Mtexels/sec 251904 Mtexels/sec
Pixel Rate 35840 Mpixels/sec 125952 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 14 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: Memory bandwidth is the maximum 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 card's bus width by the speed of its memory. If it uses DDR type memory, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's 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 amount of texture map elements (texels) that are applied in one second. This figure is calculated by multiplying the total texture units by the core speed of the chip. The better the texel rate, the better the graphics 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 amount of pixels the graphics card could possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Raster Operations Pipelines 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 also depends on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

Hide Prices

Radeon RX 480 4GB

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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