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Radeon RX 6950 XT vs Radeon RX 7900 XT

Intro

The Radeon RX 6950 XT uses a 7 nm design. AMD has set the core speed at 1925 MHz. The GDDR6 RAM runs at a frequency of 2250 MHz on this particular card. It features 5120 SPUs along with 320 Texture Address Units and 128 ROPs.

Compare all that to the Radeon RX 7900 XT, which makes use of a 5 nm design. AMD has set the core speed at 1500 MHz. The GDDR6 RAM works at a frequency of 2500 MHz on this card. It features 5376 SPUs as well as 336 Texture Address Units and 192 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 7900 XT 300 Watts
Radeon RX 6950 XT 335 Watts
Difference: 35 Watts (12%)

Memory Bandwidth

In theory, the Radeon RX 7900 XT is 39% quicker than the Radeon RX 6950 XT overall, due to its higher bandwidth. (explain)

Radeon RX 7900 XT 819200 MB/sec
Radeon RX 6950 XT 589824 MB/sec
Difference: 229376 (39%)

Texel Rate

The Radeon RX 6950 XT will be a lot (about 22%) faster with regards to AF than the Radeon RX 7900 XT. (explain)

Radeon RX 6950 XT 616000 Mtexels/sec
Radeon RX 7900 XT 504000 Mtexels/sec
Difference: 112000 (22%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon RX 7900 XT is a better choice, though not by far. (explain)

Radeon RX 7900 XT 288000 Mpixels/sec
Radeon RX 6950 XT 246400 Mpixels/sec
Difference: 41600 (17%)

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 6950 XT

Amazon.com

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Radeon RX 7900 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 6950 XT Radeon RX 7900 XT
Manufacturer AMD AMD
Year May 2022 December 2022
Code Name Navi 21 Navi 31 XT
Memory 16384 MB 20480 MB
Core Speed 1925 MHz 1500 MHz
Memory Speed 2250 GB/s 2500 GB/s
Power (Max TDP) 335 watts 300 watts
Bandwidth 589824 MB/sec 819200 MB/sec
Texel Rate 616000 Mtexels/sec 504000 Mtexels/sec
Pixel Rate 246400 Mpixels/sec 288000 Mpixels/sec
Unified Shaders 5120 5376
Texture Mapping Units 320 336
Render Output Units 128 192
Bus Type GDDR6 GDDR6
Bus Width 256-bit 320-bit
Fab Process 7 nm 5 nm
Transistors 26800 million 57700 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 information (in units of 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 clock speed. If the card has DDR memory, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed per second. This number is worked out by multiplying the total texture units by the core clock speed of the chip. The higher this number, 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 most pixels that the graphics card can possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

Hide Prices

Radeon RX 6950 XT

Amazon.com

Check prices at:

Radeon RX 7900 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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