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GeForce RTX 3080 Ti vs Radeon R9 M385X

Intro

The GeForce RTX 3080 Ti uses a 8 nm design. nVidia has set the core frequency at 1365 MHz. The GDDR6X memory runs at a frequency of 1188 MHz on this specific model. It features 10240 SPUs as well as 320 TAUs and 112 ROPs.

Compare those specifications to the Radeon R9 M385X, which has a core clock frequency of 1100 MHz and a GDDR5 memory frequency of 1500 MHz. It also uses a 128-bit memory bus, and uses a 28 nm design. It is made up of 896 SPUs, 56 Texture Address Units, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the GeForce RTX 3080 Ti is 873% faster than the Radeon R9 M385X overall, due to its higher data rate. (explain)

GeForce RTX 3080 Ti 934297 MB/sec
Radeon R9 M385X 96000 MB/sec
Difference: 838297 (873%)

Texel Rate

The GeForce RTX 3080 Ti should be quite a bit (more or less 609%) more effective at anisotropic filtering than the Radeon R9 M385X. (explain)

GeForce RTX 3080 Ti 436800 Mtexels/sec
Radeon R9 M385X 61600 Mtexels/sec
Difference: 375200 (609%)

Pixel Rate

If running with a high resolution is important to you, then the GeForce RTX 3080 Ti is superior to the Radeon R9 M385X, by far. (explain)

GeForce RTX 3080 Ti 152880 Mpixels/sec
Radeon R9 M385X 17600 Mpixels/sec
Difference: 135280 (769%)

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 3080 Ti

Amazon.com

Check prices at:

Radeon R9 M385X

Amazon.com

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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 3080 Ti Radeon R9 M385X
Manufacturer nVidia AMD
Year June 2021 2015
Code Name Ampere GA102-225-A1 Bonaire
Memory 12288 MB 4096 MB
Core Speed 1365 MHz 1100 MHz
Memory Speed 1188 GB/s 6000 MHz
Power (Max TDP) 350 watts (Unknown) watts
Bandwidth 934297 MB/sec 96000 MB/sec
Texel Rate 436800 Mtexels/sec 61600 Mtexels/sec
Pixel Rate 152880 Mpixels/sec 17600 Mpixels/sec
Unified Shaders 10240 896
Texture Mapping Units 320 56
Render Output Units 112 16
Bus Type GDDR6X GDDR5
Bus Width 384-bit 128-bit
Fab Process 8 nm 28 nm
Transistors 28300 million (Unknown) million
Bus PCIe 4.0 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 maximum amount of information (measured in megabytes per second) that can be moved past the external memory interface in one second. The number is calculated by multiplying the interface width by the speed of its memory. In the case of DDR memory, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen 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 amount of texture units by the core clock speed of the chip. The higher this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly record to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number 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 fill 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 maximum fill rate.

Display Prices

Hide Prices

GeForce RTX 3080 Ti

Amazon.com

Check prices at:

Radeon R9 M385X

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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