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GeForce RTX 3080 12 GB vs Radeon RX 6500 XT

Intro

The GeForce RTX 3080 12 GB has a clock speed of 1260 MHz and a GDDR6X memory frequency of 1188 MHz. It also makes use of a 384-bit bus, and makes use of a 8 nm design. It features 8960 SPUs, 280 Texture Address Units, and 112 Raster Operation Units.

Compare those specifications to the Radeon RX 6500 XT, which has a clock frequency of 2200 MHz and a GDDR6 memory frequency of 2250 MHz. It also features a 64-bit bus, and makes use of a 6 nm design. It is comprised of 1024 SPUs, 64 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 6500 XT 107 Watts
GeForce RTX 3080 12 GB 350 Watts
Difference: 243 Watts (227%)

Memory Bandwidth

The GeForce RTX 3080 12 GB should theoretically perform much faster than the Radeon RX 6500 XT in general. (explain)

GeForce RTX 3080 12 GB 934298 MB/sec
Radeon RX 6500 XT 147456 MB/sec
Difference: 786842 (534%)

Texel Rate

The GeForce RTX 3080 12 GB is much (approximately 151%) better at anisotropic filtering than the Radeon RX 6500 XT. (explain)

GeForce RTX 3080 12 GB 352800 Mtexels/sec
Radeon RX 6500 XT 140800 Mtexels/sec
Difference: 212000 (151%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce RTX 3080 12 GB is superior to the Radeon RX 6500 XT, and very much so. (explain)

GeForce RTX 3080 12 GB 141120 Mpixels/sec
Radeon RX 6500 XT 70400 Mpixels/sec
Difference: 70720 (100%)

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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GeForce RTX 3080 12 GB

Amazon.com

Check prices at:

Radeon RX 6500 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 GeForce RTX 3080 12 GB Radeon RX 6500 XT
Manufacturer nVidia AMD
Year January 2022 January 2022
Code Name GA102-220-A1 Navi 24 XT
Memory 12288 MB 4096 MB
Core Speed 1260 MHz 2200 MHz
Memory Speed 1188 GB/s 2250 GB/s
Power (Max TDP) 350 watts 107 watts
Bandwidth 934298 MB/sec 147456 MB/sec
Texel Rate 352800 Mtexels/sec 140800 Mtexels/sec
Pixel Rate 141120 Mpixels/sec 70400 Mpixels/sec
Unified Shaders 8960 1024
Texture Mapping Units 280 64
Render Output Units 112 32
Bus Type GDDR6X GDDR6
Bus Width 384-bit 64-bit
Fab Process 8 nm 6 nm
Transistors 28300 million 5400 million
Bus PCIe 4.0 x16 PCIe 4.0 x16
DirectX Version DirectX 12 DirectX 12
OpenGL Version OpenGL 4.6 OpenGL 4.6

Memory Bandwidth: Memory bandwidth is the max amount of data (counted in MB per second) that can be moved over the external memory interface in one second. It's 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 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 anti-aliasing, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

Hide Prices

GeForce RTX 3080 12 GB

Amazon.com

Check prices at:

Radeon RX 6500 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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