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GeForce 920M vs GeForce GTX 1080


Intro

The GeForce 920M has a core clock speed of 954 MHz and a DDR3 memory frequency of 900 MHz. It also features a 64-bit memory bus, and makes use of a 28 nm design. It is comprised of 384 SPUs, 32 Texture Address Units, and 8 Raster Operation Units.

Compare all of that to the GeForce GTX 1080, which has GPU clock speed of 1607 MHz, and 8192 MB of GDDR5X RAM running at 1251 MHz through a 256-bit bus. It also is made up of 2560 Stream Processors, 160 Texture Address Units, and 64 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 1080 22050 points
GeForce 920M 1180 points
Difference: 20870 (1769%)

Power Usage and Theoretical Benchmarks

Memory Bandwidth

The GeForce GTX 1080 should in theory be a lot faster than the GeForce 920M overall. (explain)

GeForce GTX 1080 327680 MB/sec
GeForce 920M 14400 MB/sec
Difference: 313280 (2176%)

Texel Rate

The GeForce GTX 1080 is quite a bit (about 742%) faster with regards to anisotropic filtering than the GeForce 920M. (explain)

GeForce GTX 1080 257120 Mtexels/sec
GeForce 920M 30528 Mtexels/sec
Difference: 226592 (742%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce GTX 1080 is superior to the GeForce 920M, by a large margin. (explain)

GeForce GTX 1080 102848 Mpixels/sec
GeForce 920M 7632 Mpixels/sec
Difference: 95216 (1248%)

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 920M

Amazon.com

GeForce GTX 1080

Amazon.com

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 920M GeForce GTX 1080
Manufacturer nVidia nVidia
Year March 12 2015 May 2016
Code Name GK208 GP104-400
Memory 2048 MB 8192 MB
Core Speed 954 MHz 1607 MHz
Memory Speed 1800 MHz 10008 MHz
Power (Max TDP) (Unknown) watts 180 watts
Bandwidth 14400 MB/sec 327680 MB/sec
Texel Rate 30528 Mtexels/sec 257120 Mtexels/sec
Pixel Rate 7632 Mpixels/sec 102848 Mpixels/sec
Unified Shaders 384 2560
Texture Mapping Units 32 160
Render Output Units 8 64
Bus Type DDR3 GDDR5X
Bus Width 64-bit 256-bit
Fab Process 28 nm 16 nm
Transistors (Unknown) million 7200 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 largest amount of information (counted in MB per second) that can be transported across the external memory interface in one second. It's calculated by multiplying the interface width by its memory clock speed. If the card has DDR RAM, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied per second. This is worked out by multiplying the total amount of texture units of the card by the core clock speed of the chip. The better this number, 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 most pixels that the graphics chip could possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

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GeForce 920M

Amazon.com

GeForce GTX 1080

Amazon.com

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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