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GeForce RTX 2080 vs Radeon R9 390 8G

Intro

The GeForce RTX 2080 makes use of a 12 nm design. nVidia has clocked the core speed at 1515 MHz. The GDDR6 memory runs at a speed of 1750 MHz on this particular model. It features 2944 SPUs as well as 184 TAUs and 64 Rasterization Operator Units.

Compare those specifications to the Radeon R9 390 8G, which comes with GPU clock speed of 1000 MHz, and 8192 MB of GDDR5 memory running at 1500 MHz through a 512-bit bus. It also is comprised of 2560 Stream Processors, 160 TAUs, and 64 Raster Operation Units.

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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 390 8G 12733 points
Difference: 13422 (105%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

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

Memory Bandwidth

In theory, the GeForce RTX 2080 should be 19% quicker than the Radeon R9 390 8G overall, because of its greater data rate. (explain)

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

Texel Rate

The GeForce RTX 2080 is much (more or less 74%) better at texture filtering than the Radeon R9 390 8G. (explain)

GeForce RTX 2080 278760 Mtexels/sec
Radeon R9 390 8G 160000 Mtexels/sec
Difference: 118760 (74%)

Pixel Rate

The GeForce RTX 2080 should be a lot (about 52%) more effective at full screen anti-aliasing than the Radeon R9 390 8G, and also will be capable of handling higher resolutions without losing too much performance. (explain)

GeForce RTX 2080 96960 Mpixels/sec
Radeon R9 390 8G 64000 Mpixels/sec
Difference: 32960 (52%)

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

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Radeon R9 390 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 390 8G
Manufacturer nVidia AMD
Year September 2018 June 2015
Code Name TU104-400A-A1 Grenada PRO
Memory 8192 MB 8192 MB
Core Speed 1515 MHz 1000 MHz
Memory Speed 1750 GB/s 6000 MHz
Power (Max TDP) 215 watts 275 watts
Bandwidth 458752 MB/sec 384000 MB/sec
Texel Rate 278760 Mtexels/sec 160000 Mtexels/sec
Pixel Rate 96960 Mpixels/sec 64000 Mpixels/sec
Unified Shaders 2944 2560
Texture Mapping Units 184 160
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 largest amount of data (counted in MB per second) that can be transported past the external memory interface within a second. It is calculated by multiplying the bus width by its memory speed. In the case of DDR RAM, 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 AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied per second. This figure is calculated by multiplying the total amount of 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 applied in a second.

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number 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 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 bandwidth is, the lower the potential to get to the max fill rate.

Display Prices

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GeForce RTX 2080

Amazon.com

Check prices at:

Radeon R9 390 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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