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GeForce RTX 3080 12 GB vs GeForce RTX 4090

Intro

The GeForce RTX 3080 12 GB has a GPU core speed of 1260 MHz, and the 12288 MB of GDDR6X RAM runs at 1188 MHz through a 384-bit bus. It also is made up of 8960 Stream Processors, 280 Texture Address Units, and 112 Raster Operation Units.

Compare those specs to the GeForce RTX 4090, which has GPU clock speed of 2235 MHz, and 24576 MB of GDDR6X RAM running at 1325 MHz through a 384-bit bus. It also features 16384 Stream Processors, 512 TAUs, and 176 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce RTX 3080 12 GB 350 Watts
GeForce RTX 4090 450 Watts
Difference: 100 Watts (29%)

Memory Bandwidth

In theory, the GeForce RTX 4090 should perform a little bit faster than the GeForce RTX 3080 12 GB in general. (explain)

GeForce RTX 4090 1042432 MB/sec
GeForce RTX 3080 12 GB 934298 MB/sec
Difference: 108134 (12%)

Texel Rate

The GeForce RTX 4090 should be a lot (more or less 224%) more effective at texture filtering than the GeForce RTX 3080 12 GB. (explain)

GeForce RTX 4090 1144320 Mtexels/sec
GeForce RTX 3080 12 GB 352800 Mtexels/sec
Difference: 791520 (224%)

Pixel Rate

The GeForce RTX 4090 should be much (about 179%) better at anti-aliasing than the GeForce RTX 3080 12 GB, and should be capable of handling higher screen resolutions without slowing down too much. (explain)

GeForce RTX 4090 393360 Mpixels/sec
GeForce RTX 3080 12 GB 141120 Mpixels/sec
Difference: 252240 (179%)

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 12 GB

Amazon.com

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GeForce RTX 4090

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 12 GB GeForce RTX 4090
Manufacturer nVidia nVidia
Year January 2022 October 2022
Code Name GA102-220-A1 AD102
Memory 12288 MB 24576 MB
Core Speed 1260 MHz 2235 MHz
Memory Speed 1188 GB/s 1325 GB/s
Power (Max TDP) 350 watts 450 watts
Bandwidth 934298 MB/sec 1042432 MB/sec
Texel Rate 352800 Mtexels/sec 1144320 Mtexels/sec
Pixel Rate 141120 Mpixels/sec 393360 Mpixels/sec
Unified Shaders 8960 16384
Texture Mapping Units 280 512
Render Output Units 112 176
Bus Type GDDR6X GDDR6X
Bus Width 384-bit 384-bit
Fab Process 8 nm 4 nm
Transistors 28300 million 76300 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 information (measured in MB per second) that can be transferred over the external memory interface in one second. It's worked out by multiplying the card's bus width by its memory speed. If the card has DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied per 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 card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.

Display Prices

Hide Prices

GeForce RTX 3080 12 GB

Amazon.com

Check prices at:

GeForce RTX 4090

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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