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GeForce GTX 950M vs GeForce GTX 980

Intro

The GeForce GTX 950M uses 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 particular card. It features 640 SPUs along with 40 TAUs and 16 Rasterization Operator Units.

Compare all of that to the GeForce GTX 980, which has GPU clock speed of 1126 MHz, and 4096 MB of GDDR5 memory set to run at 1750 MHz through a 256-bit bus. It also is made up of 2048 Stream Processors, 128 Texture Address Units, and 64 Raster Operation 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 980 13552 points
GeForce GTX 950M 3330 points
Difference: 10222 (307%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 950M 55 Watts
GeForce GTX 980 165 Watts
Difference: 110 Watts (200%)

Memory Bandwidth

In theory, the GeForce GTX 980 is 600% faster than the GeForce GTX 950M in general, due to its higher data rate. (explain)

GeForce GTX 980 224000 MB/sec
GeForce GTX 950M 32000 MB/sec
Difference: 192000 (600%)

Texel Rate

The GeForce GTX 980 will be a lot (about 294%) more effective at texture filtering than the GeForce GTX 950M. (explain)

GeForce GTX 980 144128 Mtexels/sec
GeForce GTX 950M 36560 Mtexels/sec
Difference: 107568 (294%)

Pixel Rate

If using a high screen resolution is important to you, then the GeForce GTX 980 is a better choice, by a large margin. (explain)

GeForce GTX 980 72064 Mpixels/sec
GeForce GTX 950M 14624 Mpixels/sec
Difference: 57440 (393%)

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 950M

Amazon.com

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GeForce GTX 980

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 950M GeForce GTX 980
Manufacturer nVidia nVidia
Year March 12 2015 September 2014
Code Name GM107 GM204-400
Memory 2048 MB 4096 MB
Core Speed 914 MHz 1126 MHz
Memory Speed 2000 MHz 7000 MHz
Power (Max TDP) 55 watts 165 watts
Bandwidth 32000 MB/sec 224000 MB/sec
Texel Rate 36560 Mtexels/sec 144128 Mtexels/sec
Pixel Rate 14624 Mpixels/sec 72064 Mpixels/sec
Unified Shaders 640 2048
Texture Mapping Units 40 128
Render Output Units 16 64
Bus Type DDR3 GDDR5
Bus Width 128-bit 256-bit
Fab Process 28 nm 28 nm
Transistors (Unknown) million 5200 million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 12 DirectX 11.2
OpenGL Version OpenGL 4.5 OpenGL 4.5

Memory Bandwidth: Memory bandwidth is the max amount of information (counted in MB per second) that can be transferred over the external memory interface within a second. The number is calculated by multiplying the interface width by its memory speed. In the case of DDR RAM, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed per second. This number is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The higher the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly write to the local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of Raster Operations Pipelines by the clock 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 fill rate also depends on quite a few other factors, especially 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 950M

Amazon.com

Check prices at:

GeForce GTX 980

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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