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Radeon RX 7900 XTX vs Radeon VII

Intro

The Radeon RX 7900 XTX features core speeds of 1855 MHz on the GPU, and 2500 MHz on the 24576 MB of GDDR6 memory. It features 6144 SPUs along with 384 Texture Address Units and 192 ROPs.

Compare that to the Radeon VII, which comes with a core clock frequency of 1400 MHz and a HBM2 memory speed of 1000 MHz. It also features a 4096-bit bus, and uses a 7 nm design. It is made up of 3840 SPUs, 240 TAUs, and 64 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon VII 295 Watts
Radeon RX 7900 XTX 355 Watts
Difference: 60 Watts (20%)

Memory Bandwidth

The Radeon VII should in theory perform a small bit faster than the Radeon RX 7900 XTX overall. (explain)

Radeon VII 1048576 MB/sec
Radeon RX 7900 XTX 983040 MB/sec
Difference: 65536 (7%)

Texel Rate

The Radeon RX 7900 XTX is a lot (more or less 112%) better at anisotropic filtering than the Radeon VII. (explain)

Radeon RX 7900 XTX 712320 Mtexels/sec
Radeon VII 336000 Mtexels/sec
Difference: 376320 (112%)

Pixel Rate

The Radeon RX 7900 XTX will be much (more or less 298%) more effective at anti-aliasing than the Radeon VII, and should be able to handle higher screen resolutions while still performing well. (explain)

Radeon RX 7900 XTX 356160 Mpixels/sec
Radeon VII 89600 Mpixels/sec
Difference: 266560 (298%)

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 7900 XTX

Amazon.com

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Radeon VII

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 7900 XTX Radeon VII
Manufacturer AMD AMD
Year December 2022 2019
Code Name Navi 31 XTX Vega 20 XT
Memory 24576 MB 16384 MB
Core Speed 1855 MHz 1400 MHz
Memory Speed 2500 GB/s 1000 MHz
Power (Max TDP) 355 watts 295 watts
Bandwidth 983040 MB/sec 1048576 MB/sec
Texel Rate 712320 Mtexels/sec 336000 Mtexels/sec
Pixel Rate 356160 Mpixels/sec 89600 Mpixels/sec
Unified Shaders 6144 3840
Texture Mapping Units 384 240
Render Output Units 192 64
Bus Type GDDR6 HBM2
Bus Width 384-bit 4096-bit
Fab Process 5 nm 7 nm
Transistors 57700 million 13230 million
Bus PCIe 4.0 x16 PCIe 3.0 x16
DirectX Version DirectX 12 DirectX 12
OpenGL Version OpenGL 4.6 OpenGL 4.6

Memory Bandwidth: Bandwidth is the max amount of information (measured in megabytes per second) that can be transported over the external memory interface in a second. The number is worked out by multiplying the card's bus width by its memory clock speed. If it uses DDR type memory, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels the video card could possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of ROPs by the the card's clock speed. 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 lots of 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

Radeon RX 7900 XTX

Amazon.com

Check prices at:

Radeon VII

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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