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Radeon RX 6950 XT vs Radeon RX Vega 64

Intro

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

Compare those specifications to the Radeon RX Vega 64, which features clock speeds of 1247 MHz on the GPU, and 1890 MHz on the 8192 MB of HBM2 RAM. It features 4096 SPUs along with 256 TAUs and 64 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX Vega 64 295 Watts
Radeon RX 6950 XT 335 Watts
Difference: 40 Watts (14%)

Memory Bandwidth

The Radeon RX 6950 XT, in theory, should be just a bit faster than the Radeon RX Vega 64 overall. (explain)

Radeon RX 6950 XT 589824 MB/sec
Radeon RX Vega 64 495411 MB/sec
Difference: 94413 (19%)

Texel Rate

The Radeon RX 6950 XT will be a lot (more or less 93%) better at AF than the Radeon RX Vega 64. (explain)

Radeon RX 6950 XT 616000 Mtexels/sec
Radeon RX Vega 64 319232 Mtexels/sec
Difference: 296768 (93%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the Radeon RX 6950 XT is superior to the Radeon RX Vega 64, and very much so. (explain)

Radeon RX 6950 XT 246400 Mpixels/sec
Radeon RX Vega 64 79808 Mpixels/sec
Difference: 166592 (209%)

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 Vega 64

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 Vega 64
Manufacturer AMD AMD
Year May 2022 August 2017
Code Name Navi 21 Vega 10 XT
Memory 16384 MB 8192 MB
Core Speed 1925 MHz 1247 MHz
Memory Speed 2250 GB/s 1890 MHz
Power (Max TDP) 335 watts 295 watts
Bandwidth 589824 MB/sec 495411 MB/sec
Texel Rate 616000 Mtexels/sec 319232 Mtexels/sec
Pixel Rate 246400 Mpixels/sec 79808 Mpixels/sec
Unified Shaders 5120 4096
Texture Mapping Units 320 256
Render Output Units 128 64
Bus Type GDDR6 HBM2
Bus Width 256-bit 2048-bit
Fab Process 7 nm 14 nm
Transistors 26800 million 12500 million
Bus PCIe 4.0 x16 PCIe 3.0 x16
DirectX Version DirectX 12 DirectX 12.0
OpenGL Version OpenGL 4.6 OpenGL 4.5

Memory Bandwidth: Memory bandwidth is the maximum amount of information (counted in megabytes per second) that can be moved over the external memory interface in a second. The number is worked out by multiplying the interface width by its memory clock speed. If the card has DDR type RAM, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels the video card can possibly write to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of ROPs by the the core 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 output rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.

Display Prices

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Radeon RX 6950 XT

Amazon.com

Check prices at:

Radeon RX Vega 64

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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