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GeForce 820M vs GeForce 9600 GSO ASUS 512

Intro

The GeForce 820M has a clock speed of 719 MHz and a DDR3 memory frequency of 1000 MHz. It also uses a 64-bit memory bus, and makes use of a 28 nm design. It is made up of 96 SPUs, 16 Texture Address Units, and 4 Raster Operation Units.

Compare that to the GeForce 9600 GSO ASUS 512, which comes with a core clock frequency of 550 MHz and a DDR2 memory speed of 500 MHz. It also features a 128-bit memory bus, and makes use of a 65 nm design. It is made up of 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 820M 15 Watts
GeForce 9600 GSO ASUS 512 84 Watts
Difference: 69 Watts (460%)

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 should be a lot (about 129%) better at texture filtering than the GeForce 820M. (explain)

GeForce 9600 GSO ASUS 512 26400 Mtexels/sec
GeForce 820M 11504 Mtexels/sec
Difference: 14896 (129%)

Pixel Rate

If using a high resolution is important to you, then the GeForce 9600 GSO ASUS 512 is superior to the GeForce 820M, by a large margin. (explain)

GeForce 9600 GSO ASUS 512 6600 Mpixels/sec
GeForce 820M 2876 Mpixels/sec
Difference: 3724 (129%)

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 820M

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 820M GeForce 9600 GSO ASUS 512
Manufacturer nVidia nVidia
Year February 2014 September 2008
Code Name GF117 G92
Memory 2048 MB 512 MB
Core Speed 719 MHz 550 MHz
Memory Speed 2000 MHz 1000 MHz
Power (Max TDP) 15 watts 84 watts
Bandwidth 16000 MB/sec 16000 MB/sec
Texel Rate 11504 Mtexels/sec 26400 Mtexels/sec
Pixel Rate 2876 Mpixels/sec 6600 Mpixels/sec
Unified Shaders 96 96
Texture Mapping Units 16 48
Render Output Units 4 12
Bus Type DDR3 DDR2
Bus Width 64-bit 128-bit
Fab Process 28 nm 65 nm
Transistors (Unknown) million 754 million
Bus PCIe 2.0 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 data (counted in MB per second) that can be moved across the external memory interface in one second. It's worked out by multiplying the card's interface width by its memory clock speed. If it uses DDR memory, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied per second. This is worked out by multiplying the total amount of texture units of the card by the core clock 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 in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly record to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.

Display Prices

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GeForce 820M

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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