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GeForce 9400 GT 256MB vs GeForce GT 130

Intro

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

Compare that to the GeForce GT 130, which makes use of a 55 nm design. nVidia has clocked the core speed at 500 MHz. The DDR2 RAM is set to run at a speed of 250 MHz on this model. It features 48 SPUs as well as 24 Texture Address Units and 16 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 9400 GT 256MB 50 Watts
GeForce GT 130 75 Watts
Difference: 25 Watts (50%)

Memory Bandwidth

The GeForce 9400 GT 256MB should in theory perform a bit faster than the GeForce GT 130 in general. (explain)

GeForce 9400 GT 256MB 12800 MB/sec
GeForce GT 130 12000 MB/sec
Difference: 800 (7%)

Texel Rate

The GeForce GT 130 should be quite a bit (about 173%) faster with regards to texture filtering than the GeForce 9400 GT 256MB. (explain)

GeForce GT 130 12000 Mtexels/sec
GeForce 9400 GT 256MB 4400 Mtexels/sec
Difference: 7600 (173%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce GT 130 is a better choice, by far. (explain)

GeForce GT 130 8000 Mpixels/sec
GeForce 9400 GT 256MB 2200 Mpixels/sec
Difference: 5800 (264%)

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 GT 130

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 GT 130
Manufacturer nVidia nVidia
Year August 2008 March 10, 2009
Code Name G96a G94b
Memory 256 MB 768 MB
Core Speed 550 MHz 500 MHz
Memory Speed 800 MHz 500 MHz
Power (Max TDP) 50 watts 75 watts
Bandwidth 12800 MB/sec 12000 MB/sec
Texel Rate 4400 Mtexels/sec 12000 Mtexels/sec
Pixel Rate 2200 Mpixels/sec 8000 Mpixels/sec
Unified Shaders 16 48
Texture Mapping Units 8 24
Render Output Units 4 16
Bus Type GDDR2 DDR2
Bus Width 128-bit 192-bit
Fab Process 65 nm 55 nm
Transistors 314 million 505 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 max amount of information (counted in megabytes per second) that can be moved across the external memory interface in a second. It's calculated by multiplying the card's interface width by the speed of its memory. If it uses DDR RAM, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed in one second. This number is calculated by multiplying the total number of texture units of the card by the core clock 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 processed per second.

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Raster Operations Pipelines 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 output rate also depends on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

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GeForce 9400 GT 256MB

Amazon.com

Check prices at:

GeForce GT 130

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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