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GeForce 830M vs GeForce GTX 980M

Intro

The GeForce 830M comes with a clock frequency of 1029 MHz and a DDR3 memory speed of 900 MHz. It also features a 64-bit bus, and uses a 28 nm design. It is made up of 256 SPUs, 16 TAUs, and 8 Raster Operation Units.

Compare those specifications to the GeForce GTX 980M, which comes with GPU clock speed of 1038 MHz, and 4096 MB of GDDR5 RAM running at 1000 MHz through a 256-bit bus. It also is made up of 1536 Stream Processors, 96 TAUs, and 64 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 830M 25 Watts
GeForce GTX 980M 100 Watts
Difference: 75 Watts (300%)

Memory Bandwidth

The GeForce GTX 980M, in theory, should perform much faster than the GeForce 830M overall. (explain)

GeForce GTX 980M 128000 MB/sec
GeForce 830M 14400 MB/sec
Difference: 113600 (789%)

Texel Rate

The GeForce GTX 980M will be much (approximately 505%) more effective at texture filtering than the GeForce 830M. (explain)

GeForce GTX 980M 99648 Mtexels/sec
GeForce 830M 16464 Mtexels/sec
Difference: 83184 (505%)

Pixel Rate

The GeForce GTX 980M will be a lot (more or less 707%) faster with regards to full screen anti-aliasing than the GeForce 830M, and also capable of handling higher screen resolutions without slowing down too much. (explain)

GeForce GTX 980M 66432 Mpixels/sec
GeForce 830M 8232 Mpixels/sec
Difference: 58200 (707%)

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 830M

Amazon.com

Check prices at:

GeForce GTX 980M

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.

Specifications

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Model GeForce 830M GeForce GTX 980M
Manufacturer nVidia nVidia
Year March 12 2014 October 7 2014
Code Name GM108 GM204
Memory 2048 MB 4096 MB
Core Speed 1029 MHz 1038 MHz
Memory Speed 1800 MHz 4000 MHz
Power (Max TDP) 25 watts 100 watts
Bandwidth 14400 MB/sec 128000 MB/sec
Texel Rate 16464 Mtexels/sec 99648 Mtexels/sec
Pixel Rate 8232 Mpixels/sec 66432 Mpixels/sec
Unified Shaders 256 1536
Texture Mapping Units 16 96
Render Output Units 8 64
Bus Type DDR3 GDDR5
Bus Width 64-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: Bandwidth is the maximum amount of information (measured in megabytes per second) that can be transferred past the external memory interface in a second. It's calculated by multiplying the bus width by the speed of its memory. In the case of DDR RAM, the result should be multiplied by 2 once 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 anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied per second. This figure is worked out by multiplying the total texture units of the card by the core speed of the chip. The better the texel rate, 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 maximum amount of pixels the video card can possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

Hide Prices

GeForce 830M

Amazon.com

Check prices at:

GeForce GTX 980M

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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