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GeForce GTX 850M vs Nvidia Titan X

Intro

The GeForce GTX 850M has a GPU core clock speed of 876 MHz, and the 2048 MB of DDR3 memory runs at 1000 MHz through a 128-bit bus. It also features 640 SPUs, 40 TAUs, and 16 ROPs.

Compare that to the Nvidia Titan X, which features a GPU core clock speed of 1417 MHz, and 12288 MB of GDDR5X memory running at 1251 MHz through a 384-bit bus. It also is made up of 3584 Stream Processors, 224 Texture Address Units, and 96 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 850M 40 Watts
Nvidia Titan X 250 Watts
Difference: 210 Watts (525%)

Memory Bandwidth

As far as performance goes, the Nvidia Titan X should theoretically be much superior to the GeForce GTX 850M overall. (explain)

Nvidia Titan X 491520 MB/sec
GeForce GTX 850M 32000 MB/sec
Difference: 459520 (1436%)

Texel Rate

The Nvidia Titan X should be quite a bit (more or less 806%) better at texture filtering than the GeForce GTX 850M. (explain)

Nvidia Titan X 317408 Mtexels/sec
GeForce GTX 850M 35040 Mtexels/sec
Difference: 282368 (806%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the Nvidia Titan X is the winner, by a large margin. (explain)

Nvidia Titan X 136032 Mpixels/sec
GeForce GTX 850M 14016 Mpixels/sec
Difference: 122016 (871%)

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 850M

Amazon.com

Check prices at:

Nvidia Titan X

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 850M Nvidia Titan X
Manufacturer nVidia nVidia
Year March 12 2014 August 2016
Code Name GM107 GP102-400
Memory 2048 MB 12288 MB
Core Speed 876 MHz 1417 MHz
Memory Speed 2000 MHz 10008 MHz
Power (Max TDP) 40 watts 250 watts
Bandwidth 32000 MB/sec 491520 MB/sec
Texel Rate 35040 Mtexels/sec 317408 Mtexels/sec
Pixel Rate 14016 Mpixels/sec 136032 Mpixels/sec
Unified Shaders 640 3584
Texture Mapping Units 40 224
Render Output Units 16 96
Bus Type DDR3 GDDR5X
Bus Width 128-bit 384-bit
Fab Process 28 nm 16 nm
Transistors (Unknown) million 12000 million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 12 DirectX 12.0
OpenGL Version OpenGL 4.5 OpenGL 4.5

Memory Bandwidth: Memory bandwidth is the largest amount of data (counted in megabytes per second) that can be transferred over the external memory interface in a second. The number is calculated by multiplying the bus width by the speed of its memory. If the card has DDR type memory, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied per second. This number is worked out by multiplying the total 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 applied per second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly write to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of ROPs by the the card's 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 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 ability to reach the maximum fill rate.

Display Prices

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GeForce GTX 850M

Amazon.com

Check prices at:

Nvidia Titan X

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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