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GeForce GTX 980 Ti vs Nvidia Titan X


Intro

The GeForce GTX 980 Ti comes with a core clock frequency of 1000 MHz and a GDDR5 memory frequency of 1750 MHz. It also features a 384-bit bus, and uses a 28 nm design. It features 2816 SPUs, 176 TAUs, and 96 ROPs.

Compare that to the Nvidia Titan X, which uses a 16 nm design. nVidia has set the core speed at 1417 MHz. The GDDR5X memory runs at a frequency of 1251 MHz on this specific model. It features 3584 SPUs as well as 224 Texture Address Units and 96 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Both cards have the same power consumption.

Memory Bandwidth

Performance-wise, the Nvidia Titan X should in theory be a lot better than the GeForce GTX 980 Ti in general. (explain)

Nvidia Titan X 491520 MB/sec
GeForce GTX 980 Ti 336000 MB/sec
Difference: 155520 (46%)

Texel Rate

The Nvidia Titan X will be quite a bit (more or less 80%) better at anisotropic filtering than the GeForce GTX 980 Ti. (explain)

Nvidia Titan X 317408 Mtexels/sec
GeForce GTX 980 Ti 176000 Mtexels/sec
Difference: 141408 (80%)

Pixel Rate

The Nvidia Titan X should be quite a bit (approximately 42%) faster with regards to AA than the GeForce GTX 980 Ti, and also will be able to handle higher resolutions without slowing down too much. (explain)

Nvidia Titan X 136032 Mpixels/sec
GeForce GTX 980 Ti 96000 Mpixels/sec
Difference: 40032 (42%)

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 980 Ti

Nvidia Titan X

Specifications

Display Specifications

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Model GeForce GTX 980 Ti Nvidia Titan X
Manufacturer nVidia nVidia
Year June 2015 August 2016
Code Name GM200 GP102-400
Memory 6144 MB 12288 MB
Core Speed 1000 MHz 1417 MHz
Memory Speed 7000 MHz 10008 MHz
Power (Max TDP) 250 watts 250 watts
Bandwidth 336000 MB/sec 491520 MB/sec
Texel Rate 176000 Mtexels/sec 317408 Mtexels/sec
Pixel Rate 96000 Mpixels/sec 136032 Mpixels/sec
Unified Shaders 2816 3584
Texture Mapping Units 176 224
Render Output Units 96 96
Bus Type GDDR5 GDDR5X
Bus Width 384-bit 384-bit
Fab Process 28 nm 16 nm
Transistors 8000 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 (in units of megabytes per second) that can be moved across the external memory interface in one second. The number is worked out by multiplying the bus width by its memory clock speed. In the case of DDR type RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied in one second. This number is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The better the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly write to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.

GeForce GTX 980 Ti

Nvidia Titan X

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