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GeForce GTX 850M vs GeForce GTX 880M

Intro

The GeForce GTX 850M makes use of a 28 nm design. nVidia has clocked the core frequency at 876 MHz. The DDR3 RAM works at a speed of 1000 MHz on this specific card. It features 640 SPUs along with 40 TAUs and 16 ROPs.

Compare those specifications to the GeForce GTX 880M, which comes with a core clock frequency of 954 MHz and a GDDR5 memory speed of 1000 MHz. It also makes use of a 256-bit memory bus, and uses a 28 nm design. It is made up of 1536 SPUs, 128 Texture Address Units, and 32 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 880M 6360 points
GeForce GTX 850M 3340 points
Difference: 3020 (90%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 850M 40 Watts
GeForce GTX 880M 130 Watts
Difference: 90 Watts (225%)

Memory Bandwidth

The GeForce GTX 880M should in theory be quite a bit faster than the GeForce GTX 850M in general. (explain)

GeForce GTX 880M 128000 MB/sec
GeForce GTX 850M 32000 MB/sec
Difference: 96000 (300%)

Texel Rate

The GeForce GTX 880M is quite a bit (about 248%) more effective at AF than the GeForce GTX 850M. (explain)

GeForce GTX 880M 122112 Mtexels/sec
GeForce GTX 850M 35040 Mtexels/sec
Difference: 87072 (248%)

Pixel Rate

The GeForce GTX 880M will be a lot (more or less 118%) faster with regards to AA than the GeForce GTX 850M, and will be able to handle higher screen resolutions without losing too much performance. (explain)

GeForce GTX 880M 30528 Mpixels/sec
GeForce GTX 850M 14016 Mpixels/sec
Difference: 16512 (118%)

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 880M

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 850M GeForce GTX 880M
Manufacturer nVidia nVidia
Year March 12 2014 March 12 2014
Code Name GM107 GK104
Memory 2048 MB 4096 MB
Core Speed 876 MHz 954 MHz
Memory Speed 2000 MHz 4000 MHz
Power (Max TDP) 40 watts 130 watts
Bandwidth 32000 MB/sec 128000 MB/sec
Texel Rate 35040 Mtexels/sec 122112 Mtexels/sec
Pixel Rate 14016 Mpixels/sec 30528 Mpixels/sec
Unified Shaders 640 1536
Texture Mapping Units 40 128
Render Output Units 16 32
Bus Type DDR3 GDDR5
Bus Width 128-bit 256-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 data (measured in MB per second) that can be transported across the external memory interface in one second. It is worked out by multiplying the interface width by the speed of its memory. If it uses DDR type memory, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the 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 texture map elements (texels) that are applied per second. This figure is worked out by multiplying the total texture units by the core speed of the chip. The better this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

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

Display Prices

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GeForce GTX 850M

Amazon.com

Check prices at:

GeForce GTX 880M

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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