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GeForce 9400 GT 256MB vs GeForce 9600 GSO ASUS 512

Intro

The GeForce 9400 GT 256MB comes with a core clock speed of 550 MHz and a GDDR2 memory speed of 400 MHz. It also uses a 128-bit memory bus, and uses a 65 nm design. It features 16 SPUs, 8 Texture Address Units, and 4 Raster Operation Units.

Compare those specs to the GeForce 9600 GSO ASUS 512, which has a core clock speed of 550 MHz and a DDR2 memory frequency of 500 MHz. It also makes use of a 128-bit bus, and uses a 65 nm design. It is made up of 96 SPUs, 48 TAUs, and 12 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 9400 GT 256MB 50 Watts
GeForce 9600 GSO ASUS 512 84 Watts
Difference: 34 Watts (68%)

Memory Bandwidth

As far as performance goes, the GeForce 9600 GSO ASUS 512 should in theory be a lot better than the GeForce 9400 GT 256MB in general. (explain)

GeForce 9600 GSO ASUS 512 16000 MB/sec
GeForce 9400 GT 256MB 12800 MB/sec
Difference: 3200 (25%)

Texel Rate

The GeForce 9600 GSO ASUS 512 is a lot (more or less 500%) better at anisotropic filtering than the GeForce 9400 GT 256MB. (explain)

GeForce 9600 GSO ASUS 512 26400 Mtexels/sec
GeForce 9400 GT 256MB 4400 Mtexels/sec
Difference: 22000 (500%)

Pixel Rate

The GeForce 9600 GSO ASUS 512 should be quite a bit (more or less 200%) more effective at anti-aliasing than the GeForce 9400 GT 256MB, and also should be able to handle higher screen resolutions without losing too much performance. (explain)

GeForce 9600 GSO ASUS 512 6600 Mpixels/sec
GeForce 9400 GT 256MB 2200 Mpixels/sec
Difference: 4400 (200%)

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

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 9400 GT 256MB GeForce 9600 GSO ASUS 512
Manufacturer nVidia nVidia
Year August 2008 September 2008
Code Name G96a G92
Memory 256 MB 512 MB
Core Speed 550 MHz 550 MHz
Memory Speed 800 MHz 1000 MHz
Power (Max TDP) 50 watts 84 watts
Bandwidth 12800 MB/sec 16000 MB/sec
Texel Rate 4400 Mtexels/sec 26400 Mtexels/sec
Pixel Rate 2200 Mpixels/sec 6600 Mpixels/sec
Unified Shaders 16 96
Texture Mapping Units 8 48
Render Output Units 4 12
Bus Type GDDR2 DDR2
Bus Width 128-bit 128-bit
Fab Process 65 nm 65 nm
Transistors 314 million 754 million
Bus PCIe x16 2.0, PCI PCIe x16 2.0
DirectX Version DirectX 10 DirectX 10
OpenGL Version OpenGL 3.0 OpenGL 3.0

Memory Bandwidth: Bandwidth is the largest amount of data (measured in megabytes per second) that can be transferred over the external memory interface in a second. The number is calculated by multiplying the card's bus width by its memory clock speed. If it uses DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied in one second. This number is calculated by multiplying the total amount 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 amount of pixels the graphics card can possibly write to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.

Display Prices

Hide Prices

GeForce 9400 GT 256MB

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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