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Nvidia Titan X vs Radeon R9 290X


Intro

The Nvidia Titan X makes use of a 16 nm design. nVidia has clocked the core frequency at 1417 MHz. The GDDR5X RAM is set to run at a speed of 1251 MHz on this specific card. It features 3584 SPUs along with 224 Texture Address Units and 96 ROPs.

Compare those specifications to the Radeon R9 290X, which features GPU core speed of 800 MHz, and 4096 MB of GDDR5 memory set to run at 1250 MHz through a 512-bit bus. It also features 2816 SPUs, 176 TAUs, and 64 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Nvidia Titan X 250 Watts
Radeon R9 290X 300 Watts
Difference: 50 Watts (20%)

Memory Bandwidth

Theoretically speaking, the Nvidia Titan X should be 54% quicker than the Radeon R9 290X overall, due to its higher data rate. (explain)

Nvidia Titan X 491520 MB/sec
Radeon R9 290X 320000 MB/sec
Difference: 171520 (54%)

Texel Rate

The Nvidia Titan X will be a lot (more or less 125%) more effective at anisotropic filtering than the Radeon R9 290X. (explain)

Nvidia Titan X 317408 Mtexels/sec
Radeon R9 290X 140800 Mtexels/sec
Difference: 176608 (125%)

Pixel Rate

If running with a high screen resolution is important to you, then the Nvidia Titan X is the winner, by a large margin. (explain)

Nvidia Titan X 136032 Mpixels/sec
Radeon R9 290X 51200 Mpixels/sec
Difference: 84832 (166%)

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

Nvidia Titan X

Radeon R9 290X

Specifications

Display Specifications

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Model Nvidia Titan X Radeon R9 290X
Manufacturer nVidia AMD
Year August 2016 October 2013
Code Name GP102-400 Hawaii XT
Memory 12288 MB 4096 MB
Core Speed 1417 MHz 800 MHz
Memory Speed 10008 MHz 5000 MHz
Power (Max TDP) 250 watts 300 watts
Bandwidth 491520 MB/sec 320000 MB/sec
Texel Rate 317408 Mtexels/sec 140800 Mtexels/sec
Pixel Rate 136032 Mpixels/sec 51200 Mpixels/sec
Unified Shaders 3584 2816
Texture Mapping Units 224 176
Render Output Units 96 64
Bus Type GDDR5X GDDR5
Bus Width 384-bit 512-bit
Fab Process 16 nm 28 nm
Transistors 12000 million 6200 million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 12.0 DirectX 11.2
OpenGL Version OpenGL 4.5 OpenGL 4.3

Memory Bandwidth: Memory bandwidth is the max amount of information (counted in MB per second) that can be transferred over the external memory interface in a second. The number is calculated by multiplying the card's interface width by its memory clock speed. If it uses DDR type memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. 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 texture map elements (texels) that can be applied per second. This is calculated by multiplying the total amount of texture units by the core clock speed of the chip. The higher this number, the better the video 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 most pixels the graphics card can possibly record to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on lots of 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.

Nvidia Titan X

Radeon R9 290X

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