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GeForce GTX 1080 vs GeForce RTX 2080

Intro

The GeForce GTX 1080 uses a 16 nm design. nVidia has set the core speed at 1607 MHz. The GDDR5X memory works at a frequency of 1251 MHz on this particular model. It features 2560 SPUs as well as 160 TAUs and 64 ROPs.

Compare those specifications to the GeForce RTX 2080, which has a core clock frequency of 1515 MHz and a GDDR6 memory speed of 14 MHz. It also features a 256-bit bus, and uses a 12 nm design. It is comprised of 2944 SPUs, 184 TAUs, and 64 Raster Operation 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 will be 40% quicker than the GeForce GTX 1080 in general, because of its greater bandwidth. (explain)

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

Texel Rate

The GeForce RTX 2080 should be just a bit (approximately 8%) more effective at AF 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 high levels of AA 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

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: Bandwidth is the maximum amount of information (counted in megabytes per second) that can be transported over the external memory interface in a second. It's calculated by multiplying the bus width by the speed of its memory. If it uses DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the bandwidth is, 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 in one second. This figure is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The better 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 most pixels that the graphics card could possibly record to the local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum 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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