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GeForce GTX 1080 vs Nvidia Titan X

Intro

The GeForce GTX 1080 has clock speeds of 1607 MHz on the GPU, and 1251 MHz on the 8192 MB of GDDR5X memory. It features 2560 SPUs along with 160 Texture Address Units and 64 Rasterization Operator Units.

Compare those specifications to the Nvidia Titan X, which has core clock speeds of 1417 MHz on the GPU, and 1251 MHz on the 12288 MB of GDDR5X RAM. It features 3584 SPUs along with 224 TAUs and 96 Rasterization Operator Units.

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 should be 20% quicker than the GeForce GTX 1080 overall, due to its higher data rate. (explain)

Nvidia Titan X 393216 MB/sec
GeForce GTX 1080 327680 MB/sec
Difference: 65536 (20%)

Texel Rate

The Nvidia Titan X is much (about 23%) more effective at texture filtering 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 much (more or less 32%) better at FSAA than the GeForce GTX 1080, and also will be capable of handling higher screen resolutions better. (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

Display Prices

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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 393216 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 ×16 PCIe 3.0 x16
DirectX Version DirectX 12.0 DirectX 12.0
OpenGL Version OpenGL 4.5 OpenGL 4.5

Memory Bandwidth: Memory bandwidth is the max amount of data (measured in MB per second) that can be transferred past the external memory interface in a second. It's worked out by multiplying the interface width by the speed of its memory. In the case of DDR memory, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, 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 amount of texture map elements (texels) that can be processed in one second. This is worked out by multiplying the total amount of texture units 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 processed in one second.

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly record to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of ROPs 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 fill 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 reach the max fill rate.

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