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GeForce 9400 GT 256MB vs GeForce GTX Titan

Intro

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

Compare those specifications to the GeForce GTX Titan, which has GPU core speed of 837 MHz, and 6144 MB of GDDR5 RAM set to run at 1502 MHz through a 384-bit bus. It also is comprised of 2688 SPUs, 224 TAUs, and 48 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 9400 GT 256MB 50 Watts
GeForce GTX Titan 250 Watts
Difference: 200 Watts (400%)

Memory Bandwidth

As far as performance goes, the GeForce GTX Titan should theoretically be quite a bit better than the GeForce 9400 GT 256MB overall. (explain)

GeForce GTX Titan 288384 MB/sec
GeForce 9400 GT 256MB 12800 MB/sec
Difference: 275584 (2153%)

Texel Rate

The GeForce GTX Titan should be much (about 4161%) more effective at texture filtering than the GeForce 9400 GT 256MB. (explain)

GeForce GTX Titan 187488 Mtexels/sec
GeForce 9400 GT 256MB 4400 Mtexels/sec
Difference: 183088 (4161%)

Pixel Rate

If using a high screen resolution is important to you, then the GeForce GTX Titan is the winner, and very much so. (explain)

GeForce GTX Titan 40176 Mpixels/sec
GeForce 9400 GT 256MB 2200 Mpixels/sec
Difference: 37976 (1726%)

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

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GeForce GTX Titan

Amazon.com

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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 GTX Titan
Manufacturer nVidia nVidia
Year August 2008 February 2013
Code Name G96a GK110
Memory 256 MB 6144 MB
Core Speed 550 MHz 837 MHz
Memory Speed 800 MHz 6008 MHz
Power (Max TDP) 50 watts 250 watts
Bandwidth 12800 MB/sec 288384 MB/sec
Texel Rate 4400 Mtexels/sec 187488 Mtexels/sec
Pixel Rate 2200 Mpixels/sec 40176 Mpixels/sec
Unified Shaders 16 2688
Texture Mapping Units 8 224
Render Output Units 4 48
Bus Type GDDR2 GDDR5
Bus Width 128-bit 384-bit
Fab Process 65 nm 28 nm
Transistors 314 million 7080 million
Bus PCIe x16 2.0, PCI PCIe 3.0 x16
DirectX Version DirectX 10 DirectX 11.0
OpenGL Version OpenGL 3.0 OpenGL 4.3

Memory Bandwidth: Bandwidth is the max amount of data (in units of megabytes per second) that can be moved across the external memory interface within a second. It's worked out by multiplying the interface width by the speed of its memory. If it uses DDR memory, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher 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 can be applied in one second. This figure is worked out by multiplying the total amount of texture units by the core speed of the chip. The better the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly record to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

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GeForce 9400 GT 256MB

Amazon.com

Check prices at:

GeForce GTX Titan

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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