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GeForce 840M vs GeForce 9600 GSO ASUS 512

Intro

The GeForce 840M makes use of a 28 nm design. nVidia has set the core frequency at 1029 MHz. The DDR3 RAM runs at a frequency of 1000 MHz on this model. It features 384 SPUs as well as 24 TAUs and 8 Rasterization Operator Units.

Compare those specifications to the GeForce 9600 GSO ASUS 512, which has GPU core speed of 550 MHz, and 512 MB of DDR2 RAM running at 500 MHz through a 128-bit bus. It also features 96 SPUs, 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 bandwidth, so in theory they should have identical performance. (explain)

Texel Rate

The GeForce 9600 GSO ASUS 512 is just a bit (approximately 7%) faster with regards to AF 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 will be a lot (about 25%) more effective at full screen anti-aliasing than the GeForce 9600 GSO ASUS 512, and should be capable of handling higher screen resolutions better. (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 maximum amount of information (in units of MB per second) that can be transported past the external memory interface in one second. It's calculated by multiplying the interface width by its memory speed. If it uses DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied per second. This figure is worked out by multiplying the total texture units by the core speed of the chip. The higher this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one 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. Pixel rate is worked out by multiplying the number of Render Output Units by the the core 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 fill rate also depends on quite a few other factors, especially the memory bandwidth - the lower the 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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