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Radeon RX 6950 XT vs Radeon RX 7900 XTX

Intro

The Radeon RX 6950 XT features a clock speed of 1925 MHz and a GDDR6 memory frequency of 2250 MHz. It also uses a 256-bit memory bus, and uses a 7 nm design. It features 5120 SPUs, 320 Texture Address Units, and 128 Raster Operation Units.

Compare all of that to the Radeon RX 7900 XTX, which features core clock speeds of 1855 MHz on the GPU, and 2500 MHz on the 24576 MB of GDDR6 memory. It features 6144 SPUs as well as 384 Texture Address Units and 192 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 6950 XT 335 Watts
Radeon RX 7900 XTX 355 Watts
Difference: 20 Watts (6%)

Memory Bandwidth

Performance-wise, the Radeon RX 7900 XTX should theoretically be much superior to the Radeon RX 6950 XT overall. (explain)

Radeon RX 7900 XTX 983040 MB/sec
Radeon RX 6950 XT 589824 MB/sec
Difference: 393216 (67%)

Texel Rate

The Radeon RX 7900 XTX will be a bit (more or less 16%) faster with regards to AF than the Radeon RX 6950 XT. (explain)

Radeon RX 7900 XTX 712320 Mtexels/sec
Radeon RX 6950 XT 616000 Mtexels/sec
Difference: 96320 (16%)

Pixel Rate

The Radeon RX 7900 XTX is much (approximately 45%) more effective at FSAA than the Radeon RX 6950 XT, and also capable of handling higher resolutions without slowing down too much. (explain)

Radeon RX 7900 XTX 356160 Mpixels/sec
Radeon RX 6950 XT 246400 Mpixels/sec
Difference: 109760 (45%)

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 XTX

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 XTX
Manufacturer AMD AMD
Year May 2022 December 2022
Code Name Navi 21 Navi 31 XTX
Memory 16384 MB 24576 MB
Core Speed 1925 MHz 1855 MHz
Memory Speed 2250 GB/s 2500 GB/s
Power (Max TDP) 335 watts 355 watts
Bandwidth 589824 MB/sec 983040 MB/sec
Texel Rate 616000 Mtexels/sec 712320 Mtexels/sec
Pixel Rate 246400 Mpixels/sec 356160 Mpixels/sec
Unified Shaders 5120 6144
Texture Mapping Units 320 384
Render Output Units 128 192
Bus Type GDDR6 GDDR6
Bus Width 256-bit 384-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: Bandwidth is the maximum amount of data (in units of megabytes per second) that can be transported over the external memory interface in one second. The number is calculated by multiplying the bus width by the speed of its memory. If the card has DDR type memory, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster 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 applied in one second. This is calculated by multiplying the total number of texture units by the core speed of the chip. The higher this number, the better the video card will be at 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 the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

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Radeon RX 6950 XT

Amazon.com

Check prices at:

Radeon RX 7900 XTX

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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