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GeForce GTX 1080 vs Nvidia Titan X

Intro

The GeForce GTX 1080 has a clock speed of 1607 MHz and a GDDR5X memory speed of 1251 MHz. It also makes use of a 256-bit memory bus, and uses a 16 nm design. It is comprised of 2560 SPUs, 160 TAUs, and 64 Raster Operation Units.

Compare those specifications to the Nvidia Titan X, which comes with GPU clock speed of 1417 MHz, and 12288 MB of GDDR5X RAM set to run at 1251 MHz through a 384-bit bus. It also is comprised of 3584 SPUs, 224 Texture Address Units, and 96 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 1080 180 Watts
Nvidia Titan X 250 Watts
Difference: 70 Watts (39%)

Memory Bandwidth

In theory, the Nvidia Titan X is 50% quicker than the GeForce GTX 1080 in general, because of its higher bandwidth. (explain)

Nvidia Titan X 491520 MB/sec
GeForce GTX 1080 327680 MB/sec
Difference: 163840 (50%)

Texel Rate

The Nvidia Titan X should be quite a bit (more or less 23%) more effective at AF than the GeForce GTX 1080. (explain)

Nvidia Titan X 317408 Mtexels/sec
GeForce GTX 1080 257120 Mtexels/sec
Difference: 60288 (23%)

Pixel Rate

The Nvidia Titan X will be a lot (about 32%) faster with regards to anti-aliasing than the GeForce GTX 1080, and able to handle higher screen resolutions while still performing well. (explain)

Nvidia Titan X 136032 Mpixels/sec
GeForce GTX 1080 102848 Mpixels/sec
Difference: 33184 (32%)

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

Nvidia Titan X

Amazon.com

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

Display Specifications

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Model GeForce GTX 1080 Nvidia Titan X
Manufacturer nVidia nVidia
Year May 2016 August 2016
Code Name GP104-400 GP102-400
Memory 8192 MB 12288 MB
Core Speed 1607 MHz 1417 MHz
Memory Speed 10008 MHz 10008 MHz
Power (Max TDP) 180 watts 250 watts
Bandwidth 327680 MB/sec 491520 MB/sec
Texel Rate 257120 Mtexels/sec 317408 Mtexels/sec
Pixel Rate 102848 Mpixels/sec 136032 Mpixels/sec
Unified Shaders 2560 3584
Texture Mapping Units 160 224
Render Output Units 64 96
Bus Type GDDR5X GDDR5X
Bus Width 256-bit 384-bit
Fab Process 16 nm 16 nm
Transistors 7200 million 12000 million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 12.0 DirectX 12.0
OpenGL Version OpenGL 4.5 OpenGL 4.5

Memory Bandwidth: Bandwidth is the maximum amount of data (measured in megabytes per second) that can be moved across the external memory interface in a second. It's calculated by multiplying the bus width by the speed of its memory. If the card has 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, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied per second. This figure is calculated by multiplying the total amount of texture units by the core speed of the chip. The higher this number, the better the graphics 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 could possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out 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 filling the screen with pixels (the image). The actual pixel rate also depends on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.

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