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GeForce RTX 2080 vs Radeon R9 M395X

Intro

The GeForce RTX 2080 features a clock frequency of 1515 MHz and a GDDR6 memory frequency of 14 MHz. It also uses a 256-bit bus, and uses a 12 nm design. It is made up of 2944 SPUs, 184 TAUs, and 64 ROPs.

Compare those specifications to the Radeon R9 M395X, which uses a 28 nm design. AMD has clocked the core speed at 723 MHz. The GDDR5 memory works at a frequency of 1250 MHz on this model. It features 2048 SPUs as well as 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

Performance-wise, the GeForce RTX 2080 should in theory be much superior to 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 is much (about 201%) more effective at texture filtering than the Radeon R9 M395X. (explain)

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

Pixel Rate

The GeForce RTX 2080 should be a lot (approximately 319%) faster with regards to FSAA than the Radeon R9 M395X, and should be able to handle higher screen resolutions without slowing down too much. (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

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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: Bandwidth is the largest amount of data (in units of megabytes per second) that can be transferred over the external memory interface in one second. It is calculated by multiplying the bus width by its memory clock speed. If it uses DDR type memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher 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 texture map elements (texels) that can be applied in one second. This number is worked out by multiplying the total texture units of the card by the core 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 applied per second.

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