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GeForce 940M vs GeForce 9600 GSO 768MB

Intro

The GeForce 940M has a clock speed of 1072 MHz and a DDR3 memory frequency of 1000 MHz. It also features a 64-bit bus, and makes use of a 28 nm design. It is comprised of 384 SPUs, 24 Texture Address Units, and 8 Raster Operation Units.

Compare those specifications to the GeForce 9600 GSO 768MB, which uses a 65 nm design. nVidia has set the core frequency at 550 MHz. The GDDR3 memory works at a speed of 800 MHz on this particular card. It features 96 SPUs along with 48 Texture Address Units and 12 ROPs.

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the GeForce 9600 GSO 768MB will be 140% faster than the GeForce 940M in general, due to its higher data rate. (explain)

GeForce 9600 GSO 768MB 38400 MB/sec
GeForce 940M 16000 MB/sec
Difference: 22400 (140%)

Texel Rate

The GeForce 9600 GSO 768MB is a small bit (more or less 3%) more effective at AF than the GeForce 940M. (explain)

GeForce 9600 GSO 768MB 26400 Mtexels/sec
GeForce 940M 25728 Mtexels/sec
Difference: 672 (3%)

Pixel Rate

If using a high resolution is important to you, then the GeForce 940M is a better choice, by far. (explain)

GeForce 940M 8576 Mpixels/sec
GeForce 9600 GSO 768MB 6600 Mpixels/sec
Difference: 1976 (30%)

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 940M

Amazon.com

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GeForce 9600 GSO 768MB

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 940M GeForce 9600 GSO 768MB
Manufacturer nVidia nVidia
Year March 12 2015 May 2008
Code Name GM108 G92
Memory 2048 MB 768 MB
Core Speed 1072 MHz 550 MHz
Memory Speed 2000 MHz 1600 MHz
Power (Max TDP) (Unknown) watts 84 watts
Bandwidth 16000 MB/sec 38400 MB/sec
Texel Rate 25728 Mtexels/sec 26400 Mtexels/sec
Pixel Rate 8576 Mpixels/sec 6600 Mpixels/sec
Unified Shaders 384 96
Texture Mapping Units 24 48
Render Output Units 8 12
Bus Type DDR3 GDDR3
Bus Width 64-bit 192-bit
Fab Process 28 nm 65 nm
Transistors (Unknown) million 754 million
Bus PCIe 3.0 x16 PCIe x16 2.0
DirectX Version DirectX 12 DirectX 10
OpenGL Version OpenGL 4.5 OpenGL 3.0

Memory Bandwidth: Bandwidth is the max amount of information (in units of MB per second) that can be moved over the external memory interface in one second. It's worked out by multiplying the interface width by its memory clock speed. If the card has DDR type RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied in one second. This is worked out by multiplying the total number of texture units by the core speed of the chip. The higher the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly write to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.

Display Prices

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GeForce 940M

Amazon.com

Check prices at:

GeForce 9600 GSO 768MB

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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