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GeForce GTX Titan X vs Radeon HD 7850

Intro

The GeForce GTX Titan X comes with a GPU core clock speed of 1000 MHz, and the 12288 MB of GDDR5 memory is set to run at 1750 MHz through a 384-bit bus. It also is comprised of 3072 SPUs, 192 TAUs, and 96 Raster Operation Units.

Compare that to the Radeon HD 7850, which makes use of a 28 nm design. AMD has clocked the core frequency at 860 MHz. The GDDR5 memory runs at a frequency of 1200 MHz on this specific model. It features 1024 SPUs as well as 64 TAUs and 32 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 7850 5200 points
Difference: 12679 (244%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7850 130 Watts
GeForce GTX Titan X 250 Watts
Difference: 120 Watts (92%)

Memory Bandwidth

Theoretically, the GeForce GTX Titan X should perform a lot faster than the Radeon HD 7850 overall. (explain)

GeForce GTX Titan X 336000 MB/sec
Radeon HD 7850 153600 MB/sec
Difference: 182400 (119%)

Texel Rate

The GeForce GTX Titan X is quite a bit (more or less 249%) more effective at anisotropic filtering than the Radeon HD 7850. (explain)

GeForce GTX Titan X 192000 Mtexels/sec
Radeon HD 7850 55040 Mtexels/sec
Difference: 136960 (249%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce GTX Titan X is superior to the Radeon HD 7850, by a large margin. (explain)

GeForce GTX Titan X 96000 Mpixels/sec
Radeon HD 7850 27520 Mpixels/sec
Difference: 68480 (249%)

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

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Radeon HD 7850

Amazon.com

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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 7850
Manufacturer nVidia AMD
Year March 2015 March 2012
Code Name GM200 Pitcairn Pro
Memory 12288 MB 2048 MB
Core Speed 1000 MHz 860 MHz
Memory Speed 7000 MHz 4800 MHz
Power (Max TDP) 250 watts 130 watts
Bandwidth 336000 MB/sec 153600 MB/sec
Texel Rate 192000 Mtexels/sec 55040 Mtexels/sec
Pixel Rate 96000 Mpixels/sec 27520 Mpixels/sec
Unified Shaders 3072 1024
Texture Mapping Units 192 64
Render Output Units 96 32
Bus Type GDDR5 GDDR5
Bus Width 384-bit 256-bit
Fab Process 28 nm 28 nm
Transistors 8000 million 2800 million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 12.0 DirectX 11.1
OpenGL Version OpenGL 4.5 OpenGL 4.2

Memory Bandwidth: Bandwidth is the largest amount of data (counted in megabytes per second) that can be transported across the external memory interface in one second. It's calculated by multiplying the bus width by its memory clock speed. If the card has DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied per second. This figure is worked out by multiplying the total texture units of the card by the core clock speed of the chip. The better this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the most pixels the video card could possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

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GeForce GTX Titan X

Amazon.com

Check prices at:

Radeon HD 7850

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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