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GeForce GTX 880M vs GeForce GTX 950M

Intro

The GeForce GTX 880M features clock speeds of 954 MHz on the GPU, and 1000 MHz on the 4096 MB of GDDR5 RAM. It features 1536 SPUs as well as 128 TAUs and 32 Rasterization Operator Units.

Compare those specs to the GeForce GTX 950M, which has a GPU core clock speed of 914 MHz, and 2048 MB of DDR3 RAM set to run at 1000 MHz through a 128-bit bus. It also is made up of 640 Stream Processors, 40 TAUs, and 16 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 880M 6360 points
GeForce GTX 950M 3330 points
Difference: 3030 (91%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 950M 55 Watts
GeForce GTX 880M 130 Watts
Difference: 75 Watts (136%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 880M will be 300% faster than the GeForce GTX 950M in general, because of its higher bandwidth. (explain)

GeForce GTX 880M 128000 MB/sec
GeForce GTX 950M 32000 MB/sec
Difference: 96000 (300%)

Texel Rate

The GeForce GTX 880M will be much (more or less 234%) faster with regards to AF than the GeForce GTX 950M. (explain)

GeForce GTX 880M 122112 Mtexels/sec
GeForce GTX 950M 36560 Mtexels/sec
Difference: 85552 (234%)

Pixel Rate

The GeForce GTX 880M is quite a bit (about 109%) faster with regards to full screen anti-aliasing than the GeForce GTX 950M, and also will be able to handle higher resolutions better. (explain)

GeForce GTX 880M 30528 Mpixels/sec
GeForce GTX 950M 14624 Mpixels/sec
Difference: 15904 (109%)

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 880M

Amazon.com

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GeForce GTX 950M

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 880M GeForce GTX 950M
Manufacturer nVidia nVidia
Year March 12 2014 March 12 2015
Code Name GK104 GM107
Memory 4096 MB 2048 MB
Core Speed 954 MHz 914 MHz
Memory Speed 4000 MHz 2000 MHz
Power (Max TDP) 130 watts 55 watts
Bandwidth 128000 MB/sec 32000 MB/sec
Texel Rate 122112 Mtexels/sec 36560 Mtexels/sec
Pixel Rate 30528 Mpixels/sec 14624 Mpixels/sec
Unified Shaders 1536 640
Texture Mapping Units 128 40
Render Output Units 32 16
Bus Type GDDR5 DDR3
Bus Width 256-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: Memory bandwidth is the largest amount of information (counted in megabytes per second) that can be transferred past the external memory interface in one second. It's worked out by multiplying the bus width by its memory speed. If it uses DDR type memory, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Raster Operations Pipelines by the the core 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 lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

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GeForce GTX 880M

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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