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GeForce 9400 GT 256MB vs GeForce GT 130

Intro

The GeForce 9400 GT 256MB comes with a GPU core clock speed of 550 MHz, and the 256 MB of GDDR2 memory is set to run at 400 MHz through a 128-bit bus. It also features 16 Stream Processors, 8 Texture Address Units, and 4 ROPs.

Compare all 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 memory works at a speed of 250 MHz on this card. It features 48 SPUs as well as 24 Texture Address Units and 16 ROPs.

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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

In theory, the GeForce 9400 GT 256MB should be 7% faster than the GeForce GT 130 overall, due to its higher data rate. (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 (more or less 173%) faster with regards to AF 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

The GeForce GT 130 will be a lot (more or less 264%) faster with regards to full screen anti-aliasing than the GeForce 9400 GT 256MB, and also capable of handling higher resolutions without slowing down too much. (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 maximum amount of information (counted in megabytes per second) that can be transported over the external memory interface in one second. It is calculated by multiplying the card's bus width by its memory speed. If it uses DDR memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed per second. This number is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The higher the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the most pixels the video card can possibly record to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount 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 rate also depends on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

Hide Prices

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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