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GeForce RTX 2080 vs Geforce GTX 1080 Ti

Intro

The GeForce RTX 2080 comes with a core clock speed of 1515 MHz and a GDDR6 memory frequency of 14 MHz. It also features a 256-bit bus, and makes use of a 12 nm design. It is made up of 2944 SPUs, 184 Texture Address Units, and 64 Raster Operation Units.

Compare those specs to the Geforce GTX 1080 Ti, which comes with core speeds of 1480 MHz on the GPU, and 1376 MHz on the 11264 MB of GDDR5X RAM. It features 3584 SPUs along with 224 TAUs and 88 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 GTX 1080 Ti 27629 points
GeForce RTX 2080 26155 points
Difference: 1474 (6%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce RTX 2080 215 Watts
Geforce GTX 1080 Ti 250 Watts
Difference: 35 Watts (16%)

Memory Bandwidth

As far as performance goes, the Geforce GTX 1080 Ti should theoretically be a small bit better than the GeForce RTX 2080 overall. (explain)

Geforce GTX 1080 Ti 495616 MB/sec
GeForce RTX 2080 458752 MB/sec
Difference: 36864 (8%)

Texel Rate

The Geforce GTX 1080 Ti should be a little bit (approximately 19%) more effective at texture filtering than the GeForce RTX 2080. (explain)

Geforce GTX 1080 Ti 331520 Mtexels/sec
GeForce RTX 2080 278760 Mtexels/sec
Difference: 52760 (19%)

Pixel Rate

If running with high levels of AA is important to you, then the Geforce GTX 1080 Ti is the winner, and very much so. (explain)

Geforce GTX 1080 Ti 130240 Mpixels/sec
GeForce RTX 2080 96960 Mpixels/sec
Difference: 33280 (34%)

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 2080

Amazon.com

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Geforce GTX 1080 Ti

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 2080 Geforce GTX 1080 Ti
Manufacturer nVidia nVidia
Year September 2018 March 2017
Code Name TU104-400A-A1 GP102
Memory 8192 MB 11264 MB
Core Speed 1515 MHz 1480 MHz
Memory Speed 14 GB/s 11008 MHz
Power (Max TDP) 215 watts 250 watts
Bandwidth 458752 MB/sec 495616 MB/sec
Texel Rate 278760 Mtexels/sec 331520 Mtexels/sec
Pixel Rate 96960 Mpixels/sec 130240 Mpixels/sec
Unified Shaders 2944 3584
Texture Mapping Units 184 224
Render Output Units 64 88
Bus Type GDDR6 GDDR5X
Bus Width 256-bit 352-bit
Fab Process 12 nm 16 nm
Transistors (Unknown) million 12000 million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 12 DirectX 12.0
OpenGL Version OpenGL 4.6 OpenGL 4.5

Memory Bandwidth: Bandwidth is the largest amount of information (in units of megabytes per second) that can be transported past the external memory interface in a second. It is worked out by multiplying the interface width by its memory clock speed. In the case of DDR type memory, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher 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 worked out by multiplying the total number of texture units by the core speed of the chip. The higher 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 maximum amount of pixels the graphics card could possibly record to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

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GeForce RTX 2080

Amazon.com

Check prices at:

Geforce GTX 1080 Ti

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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