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GeForce GTX Titan X vs Radeon HD 7790

Intro

The GeForce GTX Titan X has core clock speeds of 1000 MHz on the GPU, and 1750 MHz on the 12288 MB of GDDR5 RAM. It features 3072 SPUs along with 192 TAUs and 96 Rasterization Operator Units.

Compare those specifications to the Radeon HD 7790, which uses a 28 nm design. AMD has clocked the core speed at 1000 MHz. The GDDR5 RAM is set to run at a speed of 1500 MHz on this particular model. It features 896 SPUs along with 56 Texture Address Units and 16 Rasterization Operator Units.

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

GeForce GTX Titan X 17879 points
Radeon HD 7790 4330 points
Difference: 13549 (313%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7790 85 Watts
GeForce GTX Titan X 250 Watts
Difference: 165 Watts (194%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX Titan X will be 250% faster than the Radeon HD 7790 in general, because of its greater data rate. (explain)

GeForce GTX Titan X 336000 MB/sec
Radeon HD 7790 96000 MB/sec
Difference: 240000 (250%)

Texel Rate

The GeForce GTX Titan X will be much (more or less 243%) more effective at anisotropic filtering than the Radeon HD 7790. (explain)

GeForce GTX Titan X 192000 Mtexels/sec
Radeon HD 7790 56000 Mtexels/sec
Difference: 136000 (243%)

Pixel Rate

If using a high resolution is important to you, then the GeForce GTX Titan X is a better choice, by far. (explain)

GeForce GTX Titan X 96000 Mpixels/sec
Radeon HD 7790 16000 Mpixels/sec
Difference: 80000 (500%)

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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GeForce GTX Titan X

Amazon.com

Check prices at:

Radeon HD 7790

Amazon.com

Check prices at:

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 GeForce GTX Titan X Radeon HD 7790
Manufacturer nVidia AMD
Year March 2015 March 2013
Code Name GM200 Bonaire XT
Memory 12288 MB 1024 MB
Core Speed 1000 MHz 1000 MHz
Memory Speed 7000 MHz 6000 MHz
Power (Max TDP) 250 watts 85 watts
Bandwidth 336000 MB/sec 96000 MB/sec
Texel Rate 192000 Mtexels/sec 56000 Mtexels/sec
Pixel Rate 96000 Mpixels/sec 16000 Mpixels/sec
Unified Shaders 3072 896
Texture Mapping Units 192 56
Render Output Units 96 16
Bus Type GDDR5 GDDR5
Bus Width 384-bit 128-bit
Fab Process 28 nm 28 nm
Transistors 8000 million 2080 million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 12.0 DirectX 11.1
OpenGL Version OpenGL 4.5 OpenGL 4.3

Memory Bandwidth: Bandwidth is the maximum amount of information (measured in MB per second) that can be moved across the external memory interface in one second. It's calculated 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 it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster 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 are processed per second. This 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 video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

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

Display Prices

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GeForce GTX Titan X

Amazon.com

Check prices at:

Radeon HD 7790

Amazon.com

Check prices at:

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.

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