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GeForce GTX 850M vs GeForce GTX 950M

Intro

The GeForce GTX 850M features a core clock speed of 876 MHz and a DDR3 memory speed of 1000 MHz. It also features a 128-bit memory bus, and makes use of a 28 nm design. It features 640 SPUs, 40 Texture Address Units, and 16 ROPs.

Compare those specs to the GeForce GTX 950M, which makes use of a 28 nm design. nVidia has clocked the core speed at 914 MHz. The DDR3 memory runs at a frequency of 1000 MHz on this model. It features 640 SPUs along with 40 Texture Address Units and 16 ROPs.

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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 850M 3340 points
GeForce GTX 950M 3330 points
Difference: 10 (0%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 850M 40 Watts
GeForce GTX 950M 55 Watts
Difference: 15 Watts (38%)

Memory Bandwidth

Both cards have exactly the same bandwidth, so theoretically they should have the same performance. (explain)

Texel Rate

The GeForce GTX 950M is a little bit (more or less 4%) more effective at AF than the GeForce GTX 850M. (explain)

GeForce GTX 950M 36560 Mtexels/sec
GeForce GTX 850M 35040 Mtexels/sec
Difference: 1520 (4%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce GTX 950M is a better choice, though not by far. (explain)

GeForce GTX 950M 14624 Mpixels/sec
GeForce GTX 850M 14016 Mpixels/sec
Difference: 608 (4%)

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

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GeForce GTX 950M

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 GeForce GTX 950M
Manufacturer nVidia nVidia
Year March 12 2014 March 12 2015
Code Name GM107 GM107
Memory 2048 MB 2048 MB
Core Speed 876 MHz 914 MHz
Memory Speed 2000 MHz 2000 MHz
Power (Max TDP) 40 watts 55 watts
Bandwidth 32000 MB/sec 32000 MB/sec
Texel Rate 35040 Mtexels/sec 36560 Mtexels/sec
Pixel Rate 14016 Mpixels/sec 14624 Mpixels/sec
Unified Shaders 640 640
Texture Mapping Units 40 40
Render Output Units 16 16
Bus Type DDR3 DDR3
Bus Width 128-bit 128-bit
Fab Process 28 nm 28 nm
Transistors (Unknown) million (Unknown) million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 12 DirectX 12
OpenGL Version OpenGL 4.5 OpenGL 4.5

Memory Bandwidth: Bandwidth is the max amount of information (counted in MB per second) that can be transported past the external memory interface in one second. The number is calculated by multiplying the card's bus width by the speed of its memory. If it uses DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed per second. This figure is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The higher this number, the better the 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 amount of pixels that the graphics card could possibly record to its 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 clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on lots of 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 GTX 850M

Amazon.com

Check prices at:

GeForce GTX 950M

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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