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GeForce 9400 GT 256MB vs Radeon R9 M290X

Intro

The GeForce 9400 GT 256MB makes use of a 65 nm design. nVidia has set the core speed at 550 MHz. The GDDR2 RAM is set to run at a speed of 400 MHz on this specific card. It features 16 SPUs as well as 8 TAUs and 4 Rasterization Operator Units.

Compare all that to the Radeon R9 M290X, which has a clock speed of 850 MHz and a GDDR5 memory frequency of 1200 MHz. It also uses a 256-bit memory bus, and uses a 28 nm design. It is made up of 1280 SPUs, 80 Texture Address Units, 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 in theory be a lot better than the GeForce 9400 GT 256MB overall. (explain)

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

Texel Rate

The Radeon R9 M290X will be quite a bit (approximately 1445%) more effective at 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 using a high resolution is important to you, then the Radeon R9 M290X is the winner, by far. (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

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.

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: Memory bandwidth is the max amount of information (counted in MB per second) that can be moved across the external memory interface within a second. It is calculated by multiplying the interface width by the speed of its memory. In the case of DDR type memory, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. 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 high resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly write to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of colour ROPs 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 output rate also depends on quite a few 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

Hide Prices

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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