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GeForce 9400 GT 256MB vs GeForce GTX 460 1GB
Intro
The GeForce 9400 GT 256MB comes with a core clock speed of 550 MHz and a GDDR2 memory speed of 400 MHz. It also features a 128-bit bus, and uses a 65 nm design. It features 16 SPUs, 8 TAUs, and 4 Raster Operation Units.Compare all of that to the GeForce GTX 460 1GB, which uses a 40 nm design. nVidia has set the core speed at 675 MHz. The GDDR5 RAM works at a speed of 900 MHz on this model. It features 336 SPUs as well as 56 TAUs and 32 ROPs.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| GeForce 9400 GT 256MB |
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50 Watts |
| GeForce GTX 460 1GB |
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160 Watts |
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Memory Bandwidth
Theoretically speaking, the GeForce GTX 460 1GB should be a lot faster than the GeForce 9400 GT 256MB in general. (explain)
| GeForce GTX 460 1GB |
|
115200 MB/sec |
| GeForce 9400 GT 256MB |
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12800 MB/sec |
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Texel Rate
The GeForce GTX 460 1GB will be quite a bit (approximately 759%) better at AF than the GeForce 9400 GT 256MB. (explain)| GeForce GTX 460 1GB |
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37800 Mtexels/sec |
| GeForce 9400 GT 256MB |
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4400 Mtexels/sec |
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Pixel Rate
If running with a high screen resolution is important to you, then the GeForce GTX 460 1GB is superior to the GeForce 9400 GT 256MB, by a large margin. (explain)| GeForce GTX 460 1GB |
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21600 Mpixels/sec |
| GeForce 9400 GT 256MB |
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2200 Mpixels/sec |
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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
GeForce 9400 GT 256MBAmazon.com
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GeForce GTX 460 1GBAmazon.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
| Model | GeForce 9400 GT 256MB | GeForce GTX 460 1GB |
|---|---|---|
| Manufacturer | nVidia | nVidia |
| Year | August 2008 | July 2010 |
| Code Name | G96a | GF104 |
| Memory | 256 MB | 1024 MB |
| Core Speed | 550 MHz | 675 MHz |
| Memory Speed | 800 MHz | 3600 MHz |
| Power (Max TDP) | 50 watts | 160 watts |
| Bandwidth | 12800 MB/sec | 115200 MB/sec |
| Texel Rate | 4400 Mtexels/sec | 37800 Mtexels/sec |
| Pixel Rate | 2200 Mpixels/sec | 21600 Mpixels/sec |
| Unified Shaders | 16 | 336 |
| Texture Mapping Units | 8 | 56 |
| Render Output Units | 4 | 32 |
| Bus Type | GDDR2 | GDDR5 |
| Bus Width | 128-bit | 256-bit |
| Fab Process | 65 nm | 40 nm |
| Transistors | 314 million | 1950 million |
| Bus | PCIe x16 2.0, PCI | PCIe x16 |
| DirectX Version | DirectX 10 | DirectX 11 |
| OpenGL Version | OpenGL 3.0 | OpenGL 4.1 |
Memory Bandwidth: Bandwidth is the max amount of data (measured in megabytes per second) that can be moved across the external memory interface in one second. The number is calculated by multiplying the card's interface width by its memory speed. In the case of DDR type memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.
Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied in one second. This figure is worked out by multiplying the total number of texture units by the core speed of the chip. The higher the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.
Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly write to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of ROPs by the the core speed of the card. 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 lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.
GeForce 9400 GT 256MBAmazon.com
Check prices at:
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GeForce GTX 460 1GBAmazon.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.
|
Comments
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