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GeForce RTX 2080 Ti vs Radeon R9 M390X

Intro

The GeForce RTX 2080 Ti features core speeds of 1350 MHz on the GPU, and 1750 MHz on the 11264 MB of GDDR6 memory. It features 4352 SPUs along with 272 Texture Address Units and 88 Rasterization Operator Units.

Compare those specs to the Radeon R9 M390X, which comes with core clock speeds of 723 MHz on the GPU, and 1250 MHz on the 4096 MB of GDDR5 memory. It features 2048 SPUs along with 128 Texture Address Units and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M390X 125 Watts
GeForce RTX 2080 Ti 250 Watts
Difference: 125 Watts (100%)

Memory Bandwidth

Theoretically speaking, the GeForce RTX 2080 Ti should perform much faster than the Radeon R9 M390X overall. (explain)

GeForce RTX 2080 Ti 630784 MB/sec
Radeon R9 M390X 160000 MB/sec
Difference: 470784 (294%)

Texel Rate

The GeForce RTX 2080 Ti should be quite a bit (about 297%) better at AF than the Radeon R9 M390X. (explain)

GeForce RTX 2080 Ti 367200 Mtexels/sec
Radeon R9 M390X 92544 Mtexels/sec
Difference: 274656 (297%)

Pixel Rate

The GeForce RTX 2080 Ti will be a lot (more or less 413%) faster with regards to full screen anti-aliasing than the Radeon R9 M390X, and also will be able to handle higher screen resolutions without losing too much performance. (explain)

GeForce RTX 2080 Ti 118800 Mpixels/sec
Radeon R9 M390X 23136 Mpixels/sec
Difference: 95664 (413%)

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 2080 Ti

Amazon.com

Check prices at:

Radeon R9 M390X

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 2080 Ti Radeon R9 M390X
Manufacturer nVidia AMD
Year September 2018 2015
Code Name TU102-300A-K1-A1 Tonga
Memory 11264 MB 4096 MB
Core Speed 1350 MHz 723 MHz
Memory Speed 1750 GB/s 5000 MHz
Power (Max TDP) 250 watts 125 watts
Bandwidth 630784 MB/sec 160000 MB/sec
Texel Rate 367200 Mtexels/sec 92544 Mtexels/sec
Pixel Rate 118800 Mpixels/sec 23136 Mpixels/sec
Unified Shaders 4352 2048
Texture Mapping Units 272 128
Render Output Units 88 32
Bus Type GDDR6 GDDR5
Bus Width 352-bit 256-bit
Fab Process 12 nm 28 nm
Transistors (Unknown) million (Unknown) million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 12 DirectX 12
OpenGL Version OpenGL 4.6 OpenGL 4.3

Memory Bandwidth: Bandwidth is the maximum amount of information (measured in megabytes per second) that can be transported across the external memory interface in one second. It is worked out by multiplying the card's interface width by its memory speed. If it uses DDR type memory, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

Hide Prices

GeForce RTX 2080 Ti

Amazon.com

Check prices at:

Radeon R9 M390X

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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