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GeForce RTX 3080 vs GeForce RTX 4080

Intro

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

Compare those specifications to the GeForce RTX 4080, which has core clock speeds of 2205 MHz on the GPU, and 1400 MHz on the 16384 MB of GDDR6X RAM. It features 9728 SPUs as well as 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

Theoretically speaking, the GeForce RTX 3080 should be 6% quicker than the GeForce RTX 4080 in general, due to its greater bandwidth. (explain)

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

Texel Rate

The GeForce RTX 4080 will be quite a bit (approximately 71%) better at anisotropic 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 should be a lot (more or less 79%) better at full screen anti-aliasing than the GeForce RTX 3080, and also capable of handling higher resolutions without slowing down too much. (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

Display 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 maximum amount of data (in units of megabytes per second) that can be transported across the external memory interface within a second. It is worked out by multiplying the card's bus width by the speed of its memory. If the card has DDR type memory, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster 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 figure is calculated by multiplying the total texture units by the core clock speed of the chip. The better the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card 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 ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum 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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