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GeForce RTX 3080 vs GeForce RTX 4080

Intro

The GeForce RTX 3080 comes with a core clock frequency of 1440 MHz and a GDDR6X memory frequency of 1188 MHz. It also makes use of a 320-bit memory bus, and makes use of a 8 nm design. It is made up of 8704 SPUs, 272 TAUs, and 96 Raster Operation Units.

Compare all of that to the GeForce RTX 4080, which features a clock speed of 2205 MHz and a GDDR6X memory frequency of 1400 MHz. It also makes use of a 256-bit memory bus, and makes use of a 4 nm design. It is comprised of 9728 SPUs, 304 TAUs, and 112 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Both cards have the same power consumption.

Memory Bandwidth

The GeForce RTX 3080 should in theory be just a bit faster than the GeForce RTX 4080 in general. (explain)

GeForce RTX 3080 778547 MB/sec
GeForce RTX 4080 734003 MB/sec
Difference: 44544 (6%)

Texel Rate

The GeForce RTX 4080 should be quite a bit (more or less 71%) faster with regards to AF than the GeForce RTX 3080. (explain)

GeForce RTX 4080 670320 Mtexels/sec
GeForce RTX 3080 391680 Mtexels/sec
Difference: 278640 (71%)

Pixel Rate

The GeForce RTX 4080 will be much (about 79%) faster with regards to anti-aliasing than the GeForce RTX 3080, and should be capable of handling higher screen resolutions better. (explain)

GeForce RTX 4080 246960 Mpixels/sec
GeForce RTX 3080 138240 Mpixels/sec
Difference: 108720 (79%)

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

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 3080 GeForce RTX 4080
Manufacturer nVidia nVidia
Year September 2020 November 2022
Code Name Ampere GA102-200-KD-A1 AD103-300-A1
Memory 10240 MB 16384 MB
Core Speed 1440 MHz 2205 MHz
Memory Speed 1188 GB/s 1400 GB/s
Power (Max TDP) 320 watts 320 watts
Bandwidth 778547 MB/sec 734003 MB/sec
Texel Rate 391680 Mtexels/sec 670320 Mtexels/sec
Pixel Rate 138240 Mpixels/sec 246960 Mpixels/sec
Unified Shaders 8704 9728
Texture Mapping Units 272 304
Render Output Units 96 112
Bus Type GDDR6X GDDR6X
Bus Width 320-bit 256-bit
Fab Process 8 nm 4 nm
Transistors 28300 million 45900 million
Bus PCIe 4.0 x16 PCIe 4.0 x16
DirectX Version DirectX 12 DirectX 12
OpenGL Version OpenGL 4.6 OpenGL 4.6

Memory Bandwidth: Memory bandwidth is the largest amount of data (counted in MB per second) that can be transferred past the external memory interface in one second. It's worked out by multiplying the card's bus width by its memory speed. In the case of DDR type RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied per second. This number is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The better this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly record to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.

Display Prices

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GeForce RTX 3080

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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