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GeForce 9400 GT 256MB vs GeForce GTX 980M

Intro

The GeForce 9400 GT 256MB features clock speeds of 550 MHz on the GPU, and 400 MHz on the 256 MB of GDDR2 memory. It features 16 SPUs along with 8 Texture Address Units and 4 ROPs.

Compare that to the GeForce GTX 980M, which has a GPU core clock speed of 1038 MHz, and 4096 MB of GDDR5 memory set to run at 1000 MHz through a 256-bit bus. It also is comprised of 1536 Stream Processors, 96 Texture Address Units, and 64 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 9400 GT 256MB 50 Watts
GeForce GTX 980M 100 Watts
Difference: 50 Watts (100%)

Memory Bandwidth

The GeForce GTX 980M, in theory, should be much faster than the GeForce 9400 GT 256MB overall. (explain)

GeForce GTX 980M 128000 MB/sec
GeForce 9400 GT 256MB 12800 MB/sec
Difference: 115200 (900%)

Texel Rate

The GeForce GTX 980M is a lot (approximately 2165%) faster with regards to AF than the GeForce 9400 GT 256MB. (explain)

GeForce GTX 980M 99648 Mtexels/sec
GeForce 9400 GT 256MB 4400 Mtexels/sec
Difference: 95248 (2165%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce GTX 980M is superior to the GeForce 9400 GT 256MB, and very much so. (explain)

GeForce GTX 980M 66432 Mpixels/sec
GeForce 9400 GT 256MB 2200 Mpixels/sec
Difference: 64232 (2920%)

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 9400 GT 256MB

Amazon.com

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GeForce GTX 980M

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 9400 GT 256MB GeForce GTX 980M
Manufacturer nVidia nVidia
Year August 2008 October 7 2014
Code Name G96a GM204
Memory 256 MB 4096 MB
Core Speed 550 MHz 1038 MHz
Memory Speed 800 MHz 4000 MHz
Power (Max TDP) 50 watts 100 watts
Bandwidth 12800 MB/sec 128000 MB/sec
Texel Rate 4400 Mtexels/sec 99648 Mtexels/sec
Pixel Rate 2200 Mpixels/sec 66432 Mpixels/sec
Unified Shaders 16 1536
Texture Mapping Units 8 96
Render Output Units 4 64
Bus Type GDDR2 GDDR5
Bus Width 128-bit 256-bit
Fab Process 65 nm 28 nm
Transistors 314 million (Unknown) million
Bus PCIe x16 2.0, PCI PCIe 3.0 x16
DirectX Version DirectX 10 DirectX 12
OpenGL Version OpenGL 3.0 OpenGL 4.5

Memory Bandwidth: Bandwidth is the maximum amount of information (measured in MB per second) that can be transferred across the external memory interface within a second. It is worked out by multiplying the interface width by its memory clock speed. If it uses DDR type RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the better 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 number of texture map elements (texels) that are applied per second. This number is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The better this number, the better the video card will be at 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 can possibly write to its local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

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GeForce 9400 GT 256MB

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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