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GeForce GTX 1080 vs Nvidia Titan X

Intro

The GeForce GTX 1080 comes with a GPU core speed of 1607 MHz, and the 8192 MB of GDDR5X RAM is set to run at 1251 MHz through a 256-bit bus. It also is comprised of 2560 Stream Processors, 160 Texture Address Units, and 64 Raster Operation Units.

Compare those specifications to the Nvidia Titan X, which has GPU clock speed of 1417 MHz, and 12288 MB of GDDR5X RAM running at 1251 MHz through a 384-bit bus. It also is comprised of 3584 SPUs, 224 TAUs, 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 should perform a lot faster than the GeForce GTX 1080 in general. (explain)

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

Texel Rate

The Nvidia Titan X is a lot (approximately 23%) faster with regards to 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 a lot (more or less 32%) better at AA than the GeForce GTX 1080, and also will be able to handle higher screen resolutions without slowing down too much. (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

GeForce GTX 1080

Nvidia Titan X

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: Memory bandwidth is the maximum amount of information (in units of MB per second) that can be transported over the external memory interface within a second. The number is worked out by multiplying the interface width by its memory clock speed. In the case of DDR RAM, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR 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 number is worked out by multiplying the total texture units by the core speed of the chip. The better the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly write to the local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.

GeForce GTX 1080

Nvidia Titan X

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