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GeForce GTX 1080 vs GeForce RTX 2080

Intro

The GeForce GTX 1080 has a GPU core clock speed of 1607 MHz, and the 8192 MB of GDDR5X memory is set to run at 1251 MHz through a 256-bit bus. It also is made up of 2560 SPUs, 160 Texture Address Units, and 64 Raster Operation Units.

Compare all of that to the GeForce RTX 2080, which uses a 12 nm design. nVidia has set the core frequency at 1515 MHz. The GDDR6 memory runs at a speed of 14 MHz on this card. It features 2944 SPUs along with 184 TAUs and 64 Rasterization Operator Units.

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

GeForce RTX 2080 26155 points
GeForce GTX 1080 21942 points
Difference: 4213 (19%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 1080 180 Watts
GeForce RTX 2080 215 Watts
Difference: 35 Watts (19%)

Memory Bandwidth

Theoretically speaking, the GeForce RTX 2080 is 40% faster than the GeForce GTX 1080 overall, because of its higher bandwidth. (explain)

GeForce RTX 2080 458752 MB/sec
GeForce GTX 1080 327680 MB/sec
Difference: 131072 (40%)

Texel Rate

The GeForce RTX 2080 will be just a bit (approximately 8%) faster with regards to texture filtering than the GeForce GTX 1080. (explain)

GeForce RTX 2080 278760 Mtexels/sec
GeForce GTX 1080 257120 Mtexels/sec
Difference: 21640 (8%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce GTX 1080 is a better choice, but only just. (explain)

GeForce GTX 1080 102848 Mpixels/sec
GeForce RTX 2080 96960 Mpixels/sec
Difference: 5888 (6%)

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 GTX 1080

Amazon.com

Check prices at:

GeForce RTX 2080

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.

Specifications

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Model GeForce GTX 1080 GeForce RTX 2080
Manufacturer nVidia nVidia
Year May 2016 September 2018
Code Name GP104-400 TU104-400A-A1
Memory 8192 MB 8192 MB
Core Speed 1607 MHz 1515 MHz
Memory Speed 10008 MHz 28 GB/s
Power (Max TDP) 180 watts 215 watts
Bandwidth 327680 MB/sec 458752 MB/sec
Texel Rate 257120 Mtexels/sec 278760 Mtexels/sec
Pixel Rate 102848 Mpixels/sec 96960 Mpixels/sec
Unified Shaders 2560 2944
Texture Mapping Units 160 184
Render Output Units 64 64
Bus Type GDDR5X GDDR6
Bus Width 256-bit 256-bit
Fab Process 16 nm 12 nm
Transistors 7200 million (Unknown) million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 12.0 DirectX 12
OpenGL Version OpenGL 4.5 OpenGL 4.6

Memory Bandwidth: Memory bandwidth is the max amount of information (measured in MB per second) that can be moved across the external memory interface within a second. It is calculated by multiplying the card's bus width by its memory clock speed. If it uses DDR type RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed in one second. This is calculated by multiplying the total texture units of the card 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 applied in a second.

Pixel Rate: Pixel rate is the most pixels the video card could possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.

Display Prices

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GeForce GTX 1080

Amazon.com

Check prices at:

GeForce RTX 2080

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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