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GeForce GTX 880M vs GeForce GTX 950

Intro

The GeForce GTX 880M uses a 28 nm design. nVidia has clocked the core speed at 954 MHz. The GDDR5 memory works at a frequency of 1000 MHz on this particular card. It features 1536 SPUs along with 128 TAUs and 32 ROPs.

Compare all of that to the GeForce GTX 950, which has core speeds of 1024 MHz on the GPU, and 1652 MHz on the 2048 MB of GDDR5 memory. It features 768 SPUs along with 48 Texture Address Units and 32 Rasterization Operator 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 950 6536 points
GeForce GTX 880M 6360 points
Difference: 176 (3%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 950 90 Watts
GeForce GTX 880M 130 Watts
Difference: 40 Watts (44%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 880M should theoretically be a lot better than the GeForce GTX 950 overall. (explain)

GeForce GTX 880M 128000 MB/sec
GeForce GTX 950 105728 MB/sec
Difference: 22272 (21%)

Texel Rate

The GeForce GTX 880M is much (more or less 148%) better at texture filtering than the GeForce GTX 950. (explain)

GeForce GTX 880M 122112 Mtexels/sec
GeForce GTX 950 49152 Mtexels/sec
Difference: 72960 (148%)

Pixel Rate

The GeForce GTX 950 will be a bit (more or less 7%) more effective at AA than the GeForce GTX 880M, and also should be able to handle higher resolutions better. (explain)

GeForce GTX 950 32768 Mpixels/sec
GeForce GTX 880M 30528 Mpixels/sec
Difference: 2240 (7%)

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 950

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 950
Manufacturer nVidia nVidia
Year March 12 2014 August 2015
Code Name GK104 GM206
Memory 4096 MB 2048 MB
Core Speed 954 MHz 1024 MHz
Memory Speed 4000 MHz 6608 MHz
Power (Max TDP) 130 watts 90 watts
Bandwidth 128000 MB/sec 105728 MB/sec
Texel Rate 122112 Mtexels/sec 49152 Mtexels/sec
Pixel Rate 30528 Mpixels/sec 32768 Mpixels/sec
Unified Shaders 1536 768
Texture Mapping Units 128 48
Render Output Units 32 32
Bus Type GDDR5 GDDR5
Bus Width 256-bit 128-bit
Fab Process 28 nm 28 nm
Transistors (Unknown) million 2940 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 max amount of data (in units of MB per second) that can be transferred past the external memory interface within a second. It is worked out by multiplying the bus width by its memory speed. If it uses DDR type RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly write to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to 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 ability to get to the maximum fill rate.

Display Prices

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GeForce GTX 880M

Amazon.com

Check prices at:

GeForce GTX 950

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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