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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 set the core speed at 1417 MHz. The GDDR5X memory works at a frequency of 1251 MHz on this particular card. It features 3584 SPUs along with 224 TAUs and 96 Rasterization Operator Units.

Compare that to the Radeon R9 290X, which comes with a core clock frequency of 800 MHz and a GDDR5 memory speed of 1250 MHz. It also makes use of a 512-bit bus, and uses a 28 nm design. It is made up of 2816 SPUs, 176 Texture Address Units, 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

In theory, the Nvidia Titan X should perform quite a bit faster than the Radeon R9 290X in general. (explain)

Nvidia Titan X 393216 MB/sec
Radeon R9 290X 320000 MB/sec
Difference: 73216 (23%)

Texel Rate

The Nvidia Titan X will be much (approximately 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

The Nvidia Titan X is a lot (more or less 166%) better at FSAA than the Radeon R9 290X, and will be able to handle higher resolutions without slowing down too much. (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

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Nvidia Titan X

Amazon.com

Radeon R9 290X

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

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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 393216 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 largest amount of information (counted in MB per second) that can be moved past the external memory interface in a second. It is worked out by multiplying the bus width by the speed of its memory. In the case of DDR type RAM, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster 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 amount of texture map elements (texels) that are applied 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 graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly record to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.

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