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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 Stream Processors, 160 TAUs, and 64 ROPs.

Compare that to the GeForce RTX 2080, which makes use of a 12 nm design. nVidia has set the core frequency at 1515 MHz. The GDDR6 memory works at a frequency of 1750 MHz on this particular model. It features 2944 SPUs as well as 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

In theory, the GeForce RTX 2080 should be much faster than the GeForce GTX 1080 overall. (explain)

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

Texel Rate

The GeForce RTX 2080 will be a small bit (about 8%) better at 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 using lots of anti-aliasing is important to you, then the GeForce GTX 1080 is a better choice, but not by far. (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

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GeForce RTX 2080

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 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 3500 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: Bandwidth is the largest amount of information (measured in MB per second) that can be transported past the external memory interface within a second. It is calculated by multiplying the bus width by the speed of its memory. If it uses DDR type RAM, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the bandwidth is, the better 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 processed in one second. This number is calculated by multiplying the total texture units by the core speed of the chip. The higher this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on quite a few other factors, most notably 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 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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