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GeForce 9400 GT 256MB vs GeForce GT 130

Intro

The GeForce 9400 GT 256MB has a clock frequency of 550 MHz and a GDDR2 memory frequency of 400 MHz. It also uses a 128-bit bus, and makes use of a 65 nm design. It is comprised of 16 SPUs, 8 Texture Address Units, and 4 ROPs.

Compare all that to the GeForce GT 130, which features GPU clock speed of 500 MHz, and 768 MB of DDR2 memory set to run at 250 MHz through a 192-bit bus. It also is made up of 48 Stream Processors, 24 TAUs, and 16 Raster Operation 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

Theoretically, the GeForce 9400 GT 256MB should perform a small 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 will be quite a bit (approximately 173%) more effective at anisotropic 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 using a high screen resolution is important to you, then the GeForce GT 130 is the winner, 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: Memory bandwidth is the maximum amount of information (in units of MB per second) that can be moved past the external memory interface in one second. The number is calculated by multiplying the bus width by its memory speed. In the case of DDR type RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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