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GeForce GTX 980 vs Radeon RX 6600 XT

Intro

The GeForce GTX 980 features a GPU core speed of 1126 MHz, and the 4096 MB of GDDR5 memory runs at 1750 MHz through a 256-bit bus. It also features 2048 Stream Processors, 128 TAUs, and 64 ROPs.

Compare all of that to the Radeon RX 6600 XT, which features clock speeds of 1968 MHz on the GPU, and 2000 MHz on the 8192 MB of GDDR6 RAM. It features 2048 SPUs along with 128 Texture Address Units and 64 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 6600 XT 160 Watts
GeForce GTX 980 165 Watts
Difference: 5 Watts (3%)

Memory Bandwidth

Theoretically speaking, the Radeon RX 6600 XT is 17% faster than the GeForce GTX 980 in general, because of its higher bandwidth. (explain)

Radeon RX 6600 XT 262144 MB/sec
GeForce GTX 980 224000 MB/sec
Difference: 38144 (17%)

Texel Rate

The Radeon RX 6600 XT is quite a bit (more or less 75%) better at AF than the GeForce GTX 980. (explain)

Radeon RX 6600 XT 251904 Mtexels/sec
GeForce GTX 980 144128 Mtexels/sec
Difference: 107776 (75%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the Radeon RX 6600 XT is the winner, and very much so. (explain)

Radeon RX 6600 XT 125952 Mpixels/sec
GeForce GTX 980 72064 Mpixels/sec
Difference: 53888 (75%)

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 GTX 980

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 GeForce GTX 980 Radeon RX 6600 XT
Manufacturer nVidia AMD
Year September 2014 August 2021
Code Name GM204-400 Navi 23 XT
Memory 4096 MB 8192 MB
Core Speed 1126 MHz 1968 MHz
Memory Speed 7000 MHz 4000 GB/s
Power (Max TDP) 165 watts 160 watts
Bandwidth 224000 MB/sec 262144 MB/sec
Texel Rate 144128 Mtexels/sec 251904 Mtexels/sec
Pixel Rate 72064 Mpixels/sec 125952 Mpixels/sec
Unified Shaders 2048 2048
Texture Mapping Units 128 128
Render Output Units 64 64
Bus Type GDDR5 GDDR6
Bus Width 256-bit 128-bit
Fab Process 28 nm 7 nm
Transistors 5200 million 11060 million
Bus PCIe 3.0 x16 PCIe 4.0 x16
DirectX Version DirectX 11.2 DirectX 12
OpenGL Version OpenGL 4.5 OpenGL 4.6

Memory Bandwidth: Memory bandwidth is the maximum amount of data (measured in MB per second) that can be transferred over the external memory interface in one second. The number is calculated by multiplying the card's bus width by its memory speed. If it uses DDR memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster 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 processed per second. This 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 card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly record to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

Hide Prices

GeForce GTX 980

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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