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GeForce RTX 3080 vs GeForce RTX 4080

Intro

The GeForce RTX 3080 features clock speeds of 1440 MHz on the GPU, and 1188 MHz on the 10240 MB of GDDR6X RAM. It features 8704 SPUs along with 272 TAUs and 96 Rasterization Operator Units.

Compare those specs to the GeForce RTX 4080, which uses a 4 nm design. nVidia has clocked the core frequency at 2205 MHz. The GDDR6X RAM works at a frequency of 1400 MHz on this specific card. It features 9728 SPUs along with 304 Texture Address Units and 112 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Both cards have the same power consumption.

Memory Bandwidth

As far as performance goes, the GeForce RTX 3080 should theoretically be a small bit better 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 much (about 71%) more effective at texture filtering 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 is a lot (about 79%) better at full screen anti-aliasing than the GeForce RTX 3080, and capable of handling higher resolutions while still performing well. (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: Bandwidth is the max amount of data (measured in megabytes per second) that can be moved over the external memory interface in one second. It is calculated by multiplying the interface width by its memory clock speed. If the card has DDR type RAM, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the bandwidth is, the faster 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 amount of texture map elements (texels) that are applied in one second. This is calculated by multiplying the total number of texture units by the core clock speed of the chip. The better the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the most pixels the video card could possibly write to the local memory in a 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 - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability 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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