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GeForce 940M vs Nvidia Titan X

Intro

The GeForce 940M uses a 28 nm design. nVidia has clocked the core frequency at 1072 MHz. The DDR3 RAM runs at a speed of 1000 MHz on this particular model. It features 384 SPUs along with 24 Texture Address Units and 8 ROPs.

Compare all of that to the Nvidia Titan X, which features core speeds of 1417 MHz on the GPU, and 1251 MHz on the 12288 MB of GDDR5X memory. It features 3584 SPUs as well as 224 Texture Address Units and 96 ROPs.

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

The Nvidia Titan X should theoretically be quite a bit faster than the GeForce 940M overall. (explain)

Nvidia Titan X 491520 MB/sec
GeForce 940M 16000 MB/sec
Difference: 475520 (2972%)

Texel Rate

The Nvidia Titan X should be quite a bit (more or less 1134%) more effective at texture filtering than the GeForce 940M. (explain)

Nvidia Titan X 317408 Mtexels/sec
GeForce 940M 25728 Mtexels/sec
Difference: 291680 (1134%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the Nvidia Titan X is superior to the GeForce 940M, and very much so. (explain)

Nvidia Titan X 136032 Mpixels/sec
GeForce 940M 8576 Mpixels/sec
Difference: 127456 (1486%)

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 940M

Amazon.com

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Nvidia Titan X

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 940M Nvidia Titan X
Manufacturer nVidia nVidia
Year March 12 2015 August 2016
Code Name GM108 GP102-400
Memory 2048 MB 12288 MB
Core Speed 1072 MHz 1417 MHz
Memory Speed 2000 MHz 10008 MHz
Power (Max TDP) (Unknown) watts 250 watts
Bandwidth 16000 MB/sec 491520 MB/sec
Texel Rate 25728 Mtexels/sec 317408 Mtexels/sec
Pixel Rate 8576 Mpixels/sec 136032 Mpixels/sec
Unified Shaders 384 3584
Texture Mapping Units 24 224
Render Output Units 8 96
Bus Type DDR3 GDDR5X
Bus Width 64-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: Bandwidth is the max amount of data (counted in MB per second) that can be transported across the external memory interface within a second. It's worked out by multiplying the interface 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 higher the bandwidth is, the better 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 processed per second. This figure is calculated by multiplying the total amount of texture units 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 processed in one second.

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

Display Prices

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GeForce 940M

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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