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GeForce GTX 850M vs GeForce GTX 980 Ti

Intro

The GeForce GTX 850M has core clock speeds of 876 MHz on the GPU, and 1000 MHz on the 2048 MB of DDR3 RAM. It features 640 SPUs along with 40 TAUs and 16 ROPs.

Compare those specs to the GeForce GTX 980 Ti, which has a clock speed of 1000 MHz and a GDDR5 memory frequency of 1750 MHz. It also makes use of a 384-bit bus, and uses a 28 nm design. It is made up of 2816 SPUs, 176 TAUs, and 96 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 980 Ti 17120 points
GeForce GTX 850M 3340 points
Difference: 13780 (413%)

Zcash Mining Hash Rate

GeForce GTX 980 Ti 425 Sol/s
GeForce GTX 850M 49 Sol/s
Difference: 376 (767%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 850M 40 Watts
GeForce GTX 980 Ti 250 Watts
Difference: 210 Watts (525%)

Memory Bandwidth

The GeForce GTX 980 Ti should theoretically be much faster than the GeForce GTX 850M overall. (explain)

GeForce GTX 980 Ti 336000 MB/sec
GeForce GTX 850M 32000 MB/sec
Difference: 304000 (950%)

Texel Rate

The GeForce GTX 980 Ti will be a lot (about 402%) more effective at texture filtering than the GeForce GTX 850M. (explain)

GeForce GTX 980 Ti 176000 Mtexels/sec
GeForce GTX 850M 35040 Mtexels/sec
Difference: 140960 (402%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce GTX 980 Ti is superior to the GeForce GTX 850M, and very much so. (explain)

GeForce GTX 980 Ti 96000 Mpixels/sec
GeForce GTX 850M 14016 Mpixels/sec
Difference: 81984 (585%)

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 980 Ti

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 980 Ti
Manufacturer nVidia nVidia
Year March 12 2014 June 2015
Code Name GM107 GM200
Memory 2048 MB 6144 MB
Core Speed 876 MHz 1000 MHz
Memory Speed 2000 MHz 7000 MHz
Power (Max TDP) 40 watts 250 watts
Bandwidth 32000 MB/sec 336000 MB/sec
Texel Rate 35040 Mtexels/sec 176000 Mtexels/sec
Pixel Rate 14016 Mpixels/sec 96000 Mpixels/sec
Unified Shaders 640 2816
Texture Mapping Units 40 176
Render Output Units 16 96
Bus Type DDR3 GDDR5
Bus Width 128-bit 384-bit
Fab Process 28 nm 28 nm
Transistors (Unknown) million 8000 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 (counted in MB per second) that can be transferred across the external memory interface within a second. It's worked out by multiplying the bus width by its memory clock speed. If it uses DDR RAM, the result should be multiplied by 2 once again. If it uses 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 higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed in one second. This figure is worked out by multiplying the total texture units by the core speed of the chip. The better 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 per second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can 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 colour ROPs 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 max fill rate.

Display Prices

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GeForce GTX 850M

Amazon.com

Check prices at:

GeForce GTX 980 Ti

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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