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GeForce RTX 2080 vs Radeon R9 M395X

Intro

The GeForce RTX 2080 uses a 12 nm design. nVidia has clocked the core frequency at 1515 MHz. The GDDR6 memory runs at a speed of 14 MHz on this specific card. It features 2944 SPUs as well as 184 TAUs and 64 Rasterization Operator Units.

Compare those specs to the Radeon R9 M395X, which comes with a core clock speed of 723 MHz and a GDDR5 memory speed of 1250 MHz. It also features a 256-bit bus, and uses a 28 nm design. It is made up of 2048 SPUs, 128 Texture Address Units, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M395X 125 Watts
GeForce RTX 2080 215 Watts
Difference: 90 Watts (72%)

Memory Bandwidth

The GeForce RTX 2080, in theory, should be much faster than the Radeon R9 M395X overall. (explain)

GeForce RTX 2080 458752 MB/sec
Radeon R9 M395X 160000 MB/sec
Difference: 298752 (187%)

Texel Rate

The GeForce RTX 2080 should be quite a bit (about 201%) faster with regards to AF than the Radeon R9 M395X. (explain)

GeForce RTX 2080 278760 Mtexels/sec
Radeon R9 M395X 92544 Mtexels/sec
Difference: 186216 (201%)

Pixel Rate

If running with 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 M395X 23136 Mpixels/sec
Difference: 73824 (319%)

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

Display Prices

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GeForce RTX 2080

Amazon.com

Check prices at:

Radeon R9 M395X

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

Display Specifications

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Model GeForce RTX 2080 Radeon R9 M395X
Manufacturer nVidia AMD
Year September 2018 2015
Code Name TU104-400A-A1 Tonga
Memory 8192 MB 4096 MB
Core Speed 1515 MHz 723 MHz
Memory Speed 14 GB/s 5000 MHz
Power (Max TDP) 215 watts 125 watts
Bandwidth 458752 MB/sec 160000 MB/sec
Texel Rate 278760 Mtexels/sec 92544 Mtexels/sec
Pixel Rate 96960 Mpixels/sec 23136 Mpixels/sec
Unified Shaders 2944 2048
Texture Mapping Units 184 128
Render Output Units 64 32
Bus Type GDDR6 GDDR5
Bus Width 256-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: Memory bandwidth is the max amount of information (measured in megabytes per second) that can be transported over the external memory interface in one second. The number is calculated by multiplying the interface width by its memory speed. In the case of DDR type memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, 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 are applied in one 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 higher this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly write to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.

Display Prices

Hide Prices

GeForce RTX 2080

Amazon.com

Check prices at:

Radeon R9 M395X

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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