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GeForce 840M vs GeForce 9600 GSO ASUS 512

Intro

The GeForce 840M comes with core speeds of 1029 MHz on the GPU, and 1000 MHz on the 2048 MB of DDR3 memory. It features 384 SPUs along with 24 Texture Address Units and 8 ROPs.

Compare those specs to the GeForce 9600 GSO ASUS 512, which features GPU core speed of 550 MHz, and 512 MB of DDR2 memory running at 500 MHz through a 128-bit bus. It also is made up of 96 Stream Processors, 48 Texture Address Units, and 12 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 840M 30 Watts
GeForce 9600 GSO ASUS 512 84 Watts
Difference: 54 Watts (180%)

Memory Bandwidth

Both cards have exactly the same memory bandwidth, so in theory they should perform exactly the same. (explain)

Texel Rate

The GeForce 9600 GSO ASUS 512 should be a small bit (about 7%) better at texture filtering than the GeForce 840M. (explain)

GeForce 9600 GSO ASUS 512 26400 Mtexels/sec
GeForce 840M 24696 Mtexels/sec
Difference: 1704 (7%)

Pixel Rate

The GeForce 840M should be a lot (about 25%) faster with regards to anti-aliasing than the GeForce 9600 GSO ASUS 512, and able to handle higher resolutions without losing too much performance. (explain)

GeForce 840M 8232 Mpixels/sec
GeForce 9600 GSO ASUS 512 6600 Mpixels/sec
Difference: 1632 (25%)

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 840M

Amazon.com

Check prices at:

GeForce 9600 GSO ASUS 512

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 840M GeForce 9600 GSO ASUS 512
Manufacturer nVidia nVidia
Year March 12 2014 September 2008
Code Name GM108 G92
Memory 2048 MB 512 MB
Core Speed 1029 MHz 550 MHz
Memory Speed 2000 MHz 1000 MHz
Power (Max TDP) 30 watts 84 watts
Bandwidth 16000 MB/sec 16000 MB/sec
Texel Rate 24696 Mtexels/sec 26400 Mtexels/sec
Pixel Rate 8232 Mpixels/sec 6600 Mpixels/sec
Unified Shaders 384 96
Texture Mapping Units 24 48
Render Output Units 8 12
Bus Type DDR3 DDR2
Bus Width 64-bit 128-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: Memory bandwidth is the max amount of data (counted in megabytes per second) that can be transferred past the external memory interface in a second. It's worked out by multiplying the interface width by its memory clock speed. In the case of DDR type RAM, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed per second. This figure is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The better this number, the better the video card will be at handling 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 the graphics card could possibly write to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of colour ROPs by the the core clock speed. 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 many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.

Display Prices

Hide Prices

GeForce 840M

Amazon.com

Check prices at:

GeForce 9600 GSO ASUS 512

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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