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GeForce RTX 2080 vs GeForce RTX 4080

Intro

The GeForce RTX 2080 comes with a GPU core speed of 1515 MHz, and the 8192 MB of GDDR6 RAM is set to run at 1750 MHz through a 256-bit bus. It also features 2944 SPUs, 184 Texture Address Units, and 64 ROPs.

Compare those specs to the GeForce RTX 4080, which uses a 4 nm design. nVidia has set the core frequency at 2205 MHz. The GDDR6X memory works at a speed of 1400 MHz on this particular model. It features 9728 SPUs as well as 304 Texture Address Units and 112 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce RTX 2080 215 Watts
GeForce RTX 4080 320 Watts
Difference: 105 Watts (49%)

Memory Bandwidth

Theoretically speaking, the GeForce RTX 4080 should be a lot faster than the GeForce RTX 2080 overall. (explain)

GeForce RTX 4080 734003 MB/sec
GeForce RTX 2080 458752 MB/sec
Difference: 275251 (60%)

Texel Rate

The GeForce RTX 4080 will be a lot (approximately 140%) faster with regards to AF than the GeForce RTX 2080. (explain)

GeForce RTX 4080 670320 Mtexels/sec
GeForce RTX 2080 278760 Mtexels/sec
Difference: 391560 (140%)

Pixel Rate

The GeForce RTX 4080 is much (approximately 155%) better at anti-aliasing than the GeForce RTX 2080, and should be able to handle higher screen resolutions while still performing well. (explain)

GeForce RTX 4080 246960 Mpixels/sec
GeForce RTX 2080 96960 Mpixels/sec
Difference: 150000 (155%)

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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GeForce RTX 4080

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 2080 GeForce RTX 4080
Manufacturer nVidia nVidia
Year September 2018 November 2022
Code Name TU104-400A-A1 AD103-300-A1
Memory 8192 MB 16384 MB
Core Speed 1515 MHz 2205 MHz
Memory Speed 1750 GB/s 1400 GB/s
Power (Max TDP) 215 watts 320 watts
Bandwidth 458752 MB/sec 734003 MB/sec
Texel Rate 278760 Mtexels/sec 670320 Mtexels/sec
Pixel Rate 96960 Mpixels/sec 246960 Mpixels/sec
Unified Shaders 2944 9728
Texture Mapping Units 184 304
Render Output Units 64 112
Bus Type GDDR6 GDDR6X
Bus Width 256-bit 256-bit
Fab Process 12 nm 4 nm
Transistors (Unknown) million 45900 million
Bus PCIe 3.0 x16 PCIe 4.0 x16
DirectX Version DirectX 12 DirectX 12
OpenGL Version OpenGL 4.6 OpenGL 4.6

Memory Bandwidth: Bandwidth is the max amount of data (in units of megabytes per second) that can be moved over the external memory interface in a second. The number is worked out by multiplying the bus width by its memory clock speed. In the case of DDR type RAM, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed per second. This number is calculated by multiplying the total amount of texture units by the core speed of the chip. The better the texel rate, the better the video card will be at handling 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 video card can possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

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GeForce RTX 2080

Amazon.com

Check prices at:

GeForce RTX 4080

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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