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GeForce RTX 2080 vs Radeon R9 390X 8G

Intro

The GeForce RTX 2080 has a clock frequency of 1515 MHz and a GDDR6 memory frequency of 14 MHz. It also makes use of a 256-bit memory bus, and uses a 12 nm design. It features 2944 SPUs, 184 Texture Address Units, and 64 Raster Operation Units.

Compare all of that to the Radeon R9 390X 8G, which features a clock frequency of 1050 MHz and a GDDR5 memory speed of 1500 MHz. It also makes use of a 512-bit memory bus, and uses a 28 nm design. It is made up of 2816 SPUs, 176 TAUs, and 64 ROPs.

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

GeForce RTX 2080 26155 points
Radeon R9 390X 8G 13555 points
Difference: 12600 (93%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce RTX 2080 215 Watts
Radeon R9 390X 8G 275 Watts
Difference: 60 Watts (28%)

Memory Bandwidth

In theory, the GeForce RTX 2080 should be a little bit faster than the Radeon R9 390X 8G overall. (explain)

GeForce RTX 2080 458752 MB/sec
Radeon R9 390X 8G 384000 MB/sec
Difference: 74752 (19%)

Texel Rate

The GeForce RTX 2080 should be a lot (more or less 51%) more effective at AF than the Radeon R9 390X 8G. (explain)

GeForce RTX 2080 278760 Mtexels/sec
Radeon R9 390X 8G 184800 Mtexels/sec
Difference: 93960 (51%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce RTX 2080 is a better choice, by far. (explain)

GeForce RTX 2080 96960 Mpixels/sec
Radeon R9 390X 8G 67200 Mpixels/sec
Difference: 29760 (44%)

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

Amazon.com

Check prices at:

Radeon R9 390X 8G

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 Radeon R9 390X 8G
Manufacturer nVidia AMD
Year September 2018 June 2015
Code Name TU104-400A-A1 Grenada XT
Memory 8192 MB 8192 MB
Core Speed 1515 MHz 1050 MHz
Memory Speed 14 GB/s 6000 MHz
Power (Max TDP) 215 watts 275 watts
Bandwidth 458752 MB/sec 384000 MB/sec
Texel Rate 278760 Mtexels/sec 184800 Mtexels/sec
Pixel Rate 96960 Mpixels/sec 67200 Mpixels/sec
Unified Shaders 2944 2816
Texture Mapping Units 184 176
Render Output Units 64 64
Bus Type GDDR6 GDDR5
Bus Width 256-bit 512-bit
Fab Process 12 nm 28 nm
Transistors (Unknown) million 6200 million
Bus PCIe 3.0 x16 PCIe 3.0 ×16
DirectX Version DirectX 12 DirectX 12.0
OpenGL Version OpenGL 4.6 OpenGL 4.5

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 interface width by the speed of its memory. In the case of DDR RAM, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed in one second. This figure 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 handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly write to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

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GeForce RTX 2080

Amazon.com

Check prices at:

Radeon R9 390X 8G

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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