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GeForce 9400 GT 256MB vs Radeon R9 M290X

Intro

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

Compare all that to the Radeon R9 M290X, which uses a 28 nm design. AMD has set the core frequency at 850 MHz. The GDDR5 memory is set to run at a frequency of 1200 MHz on this specific card. It features 1280 SPUs along with 80 TAUs and 32 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 9400 GT 256MB 50 Watts
Radeon R9 M290X 100 Watts
Difference: 50 Watts (100%)

Memory Bandwidth

As far as performance goes, the Radeon R9 M290X should theoretically be a lot superior to the GeForce 9400 GT 256MB in general. (explain)

Radeon R9 M290X 153600 MB/sec
GeForce 9400 GT 256MB 12800 MB/sec
Difference: 140800 (1100%)

Texel Rate

The Radeon R9 M290X is a lot (approximately 1445%) faster with regards to texture filtering than the GeForce 9400 GT 256MB. (explain)

Radeon R9 M290X 68000 Mtexels/sec
GeForce 9400 GT 256MB 4400 Mtexels/sec
Difference: 63600 (1445%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon R9 M290X is the winner, and very much so. (explain)

Radeon R9 M290X 27200 Mpixels/sec
GeForce 9400 GT 256MB 2200 Mpixels/sec
Difference: 25000 (1136%)

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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Radeon R9 M290X

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 Radeon R9 M290X
Manufacturer nVidia AMD
Year August 2008 May 1 2014
Code Name G96a Neptune XT
Memory 256 MB 4096 MB
Core Speed 550 MHz 850 MHz
Memory Speed 800 MHz 4800 MHz
Power (Max TDP) 50 watts 100 watts
Bandwidth 12800 MB/sec 153600 MB/sec
Texel Rate 4400 Mtexels/sec 68000 Mtexels/sec
Pixel Rate 2200 Mpixels/sec 27200 Mpixels/sec
Unified Shaders 16 1280
Texture Mapping Units 8 80
Render Output Units 4 32
Bus Type GDDR2 GDDR5
Bus Width 128-bit 256-bit
Fab Process 65 nm 28 nm
Transistors 314 million (Unknown) million
Bus PCIe x16 2.0, PCI PCIe 3.0 x16
DirectX Version DirectX 10 DirectX 11.2
OpenGL Version OpenGL 3.0 OpenGL 4.3

Memory Bandwidth: Bandwidth is the max amount of information (measured in MB per second) that can be moved over the external memory interface in a second. The number is calculated by multiplying the card's bus width by its memory speed. In the case of DDR RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, 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 figure is calculated by multiplying the total texture units of the card by the core speed of the chip. The higher the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly record to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

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GeForce 9400 GT 256MB

Amazon.com

Check prices at:

Radeon R9 M290X

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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