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GeForce 9400 GT 256MB vs GeForce GTX 650 Ti

Intro

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

Compare those specifications to the GeForce GTX 650 Ti, which comes with core speeds of 928 MHz on the GPU, and 1350 MHz on the 1024 MB of GDDR5 RAM. It features 768 SPUs as well as 64 TAUs and 16 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 9400 GT 256MB 50 Watts
GeForce GTX 650 Ti 110 Watts
Difference: 60 Watts (120%)

Memory Bandwidth

In theory, the GeForce GTX 650 Ti should be 575% faster than the GeForce 9400 GT 256MB in general, because of its higher bandwidth. (explain)

GeForce GTX 650 Ti 86400 MB/sec
GeForce 9400 GT 256MB 12800 MB/sec
Difference: 73600 (575%)

Texel Rate

The GeForce GTX 650 Ti will be much (about 1250%) faster with regards to anisotropic filtering than the GeForce 9400 GT 256MB. (explain)

GeForce GTX 650 Ti 59392 Mtexels/sec
GeForce 9400 GT 256MB 4400 Mtexels/sec
Difference: 54992 (1250%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce GTX 650 Ti is the winner, and very much so. (explain)

GeForce GTX 650 Ti 14848 Mpixels/sec
GeForce 9400 GT 256MB 2200 Mpixels/sec
Difference: 12648 (575%)

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 GTX 650 Ti

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 GTX 650 Ti
Manufacturer nVidia nVidia
Year August 2008 October 2012
Code Name G96a GK106
Memory 256 MB 1024 MB
Core Speed 550 MHz 928 MHz
Memory Speed 800 MHz 5400 MHz
Power (Max TDP) 50 watts 110 watts
Bandwidth 12800 MB/sec 86400 MB/sec
Texel Rate 4400 Mtexels/sec 59392 Mtexels/sec
Pixel Rate 2200 Mpixels/sec 14848 Mpixels/sec
Unified Shaders 16 768
Texture Mapping Units 8 64
Render Output Units 4 16
Bus Type GDDR2 GDDR5
Bus Width 128-bit 128-bit
Fab Process 65 nm 28 nm
Transistors 314 million 2540 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: Memory bandwidth is the max amount of data (counted in megabytes per second) that can be transported across the external memory interface in a second. It's calculated by multiplying the card's bus width by the speed of its memory. If the card has DDR type memory, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, 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 amount of texture map elements (texels) that are processed in one second. This figure is worked out by multiplying the total texture units of the card by the core clock speed of the chip. The better the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly record to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of ROPs by the the card's clock speed. 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 rate also depends on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.

Display Prices

Hide Prices

GeForce 9400 GT 256MB

Amazon.com

Check prices at:

GeForce GTX 650 Ti

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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