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GeForce RTX 4080 vs Radeon RX 6950 XT

Intro

The GeForce RTX 4080 features a GPU clock speed of 2205 MHz, and the 16384 MB of GDDR6X RAM is set to run at 1400 MHz through a 256-bit bus. It also is comprised of 9728 SPUs, 304 Texture Address Units, and 112 Raster Operation Units.

Compare all that to the Radeon RX 6950 XT, which features GPU core speed of 1925 MHz, and 16384 MB of GDDR6 RAM set to run at 2250 MHz through a 256-bit bus. It also is comprised of 5120 SPUs, 320 Texture Address Units, and 128 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce RTX 4080 320 Watts
Radeon RX 6950 XT 335 Watts
Difference: 15 Watts (5%)

Memory Bandwidth

Theoretically, the GeForce RTX 4080 should perform much faster than the Radeon RX 6950 XT overall. (explain)

GeForce RTX 4080 734003 MB/sec
Radeon RX 6950 XT 589824 MB/sec
Difference: 144179 (24%)

Texel Rate

The GeForce RTX 4080 will be a bit (about 9%) more effective at anisotropic filtering than the Radeon RX 6950 XT. (explain)

GeForce RTX 4080 670320 Mtexels/sec
Radeon RX 6950 XT 616000 Mtexels/sec
Difference: 54320 (9%)

Pixel Rate

The GeForce RTX 4080 is a bit (approximately 0%) faster with regards to AA than the Radeon RX 6950 XT, and also will be able to handle higher resolutions better. (explain)

GeForce RTX 4080 246960 Mpixels/sec
Radeon RX 6950 XT 246400 Mpixels/sec
Difference: 560 (0%)

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 4080

Amazon.com

Check prices at:

Radeon RX 6950 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 4080 Radeon RX 6950 XT
Manufacturer nVidia AMD
Year November 2022 May 2022
Code Name AD103-300-A1 Navi 21
Memory 16384 MB 16384 MB
Core Speed 2205 MHz 1925 MHz
Memory Speed 1400 GB/s 2250 GB/s
Power (Max TDP) 320 watts 335 watts
Bandwidth 734003 MB/sec 589824 MB/sec
Texel Rate 670320 Mtexels/sec 616000 Mtexels/sec
Pixel Rate 246960 Mpixels/sec 246400 Mpixels/sec
Unified Shaders 9728 5120
Texture Mapping Units 304 320
Render Output Units 112 128
Bus Type GDDR6X GDDR6
Bus Width 256-bit 256-bit
Fab Process 4 nm 7 nm
Transistors 45900 million 26800 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: Bandwidth is the largest amount of information (counted in megabytes per second) that can be transported across the external memory interface in a second. The number is worked out by multiplying the bus width by its memory speed. In the case of DDR type memory, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed in one second. This number is calculated by multiplying the total amount of texture units of the card by the core clock 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 per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly write to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill 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 ability to get to the maximum fill rate.

Display Prices

Hide Prices

GeForce RTX 4080

Amazon.com

Check prices at:

Radeon RX 6950 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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