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GeForce RTX 3090 vs Radeon VII

Intro

The GeForce RTX 3090 comes with a core clock speed of 1395 MHz and a GDDR6X memory speed of 1219 MHz. It also uses a 384-bit bus, and uses a 8 nm design. It is comprised of 10496 SPUs, 328 TAUs, and 112 ROPs.

Compare those specifications to the Radeon VII, which has clock speeds of 1400 MHz on the GPU, and 1000 MHz on the 16384 MB of HBM2 RAM. It features 3840 SPUs as well as 240 Texture Address Units and 64 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon VII 295 Watts
GeForce RTX 3090 350 Watts
Difference: 55 Watts (19%)

Memory Bandwidth

Theoretically, the Radeon VII should be a little bit faster than the GeForce RTX 3090 overall. (explain)

Radeon VII 1048576 MB/sec
GeForce RTX 3090 958668 MB/sec
Difference: 89908 (9%)

Texel Rate

The GeForce RTX 3090 should be quite a bit (more or less 36%) faster with regards to anisotropic filtering than the Radeon VII. (explain)

GeForce RTX 3090 457560 Mtexels/sec
Radeon VII 336000 Mtexels/sec
Difference: 121560 (36%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce RTX 3090 is a better choice, by a large margin. (explain)

GeForce RTX 3090 156240 Mpixels/sec
Radeon VII 89600 Mpixels/sec
Difference: 66640 (74%)

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 3090

Amazon.com

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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.

Specifications

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Model GeForce RTX 3090 Radeon VII
Manufacturer nVidia AMD
Year September 2020 2019
Code Name GA102-300-A1 Vega 20 XT
Memory 24576 MB 16384 MB
Core Speed 1395 MHz 1400 MHz
Memory Speed 1219 GB/s 1000 MHz
Power (Max TDP) 350 watts 295 watts
Bandwidth 958668 MB/sec 1048576 MB/sec
Texel Rate 457560 Mtexels/sec 336000 Mtexels/sec
Pixel Rate 156240 Mpixels/sec 89600 Mpixels/sec
Unified Shaders 10496 3840
Texture Mapping Units 328 240
Render Output Units 112 64
Bus Type GDDR6X HBM2
Bus Width 384-bit 4096-bit
Fab Process 8 nm 7 nm
Transistors 28300 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 (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 its memory speed. If it uses DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the bandwidth is, 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 can be applied in one second. This figure is worked out by multiplying the total number of texture units of the card by the core clock speed of the chip. The better this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly write to the local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.

Display Prices

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GeForce RTX 3090

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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