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GeForce 9400 GT 256MB vs GeForce 9600 GSO ASUS 512

Intro

The GeForce 9400 GT 256MB features a GPU clock speed of 550 MHz, and the 256 MB of GDDR2 RAM is set to run at 400 MHz through a 128-bit bus. It also is made up of 16 SPUs, 8 TAUs, and 4 Raster Operation Units.

Compare those specs to the GeForce 9600 GSO ASUS 512, which makes use of a 65 nm design. nVidia has clocked the core speed at 550 MHz. The DDR2 memory runs at a speed of 500 MHz on this particular card. It features 96 SPUs as well as 48 TAUs and 12 ROPs.

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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

In theory, the GeForce 9600 GSO ASUS 512 will be 25% quicker than the GeForce 9400 GT 256MB overall, due to its higher bandwidth. (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 will be a lot (about 500%) more effective 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 will be a lot (about 200%) faster with regards to AA than the GeForce 9400 GT 256MB, and will be able to handle higher screen resolutions better. (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 (counted in MB per second) that can be transferred over the external memory interface in one second. The number is calculated by multiplying the bus width by its memory speed. If it uses DDR memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, 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 applied in one second. This number is calculated by multiplying the total amount of texture units by the core speed of the chip. The higher this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly write to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

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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.

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