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GeForce 9400 GT 256MB vs GeForce GTX 460 1GB
Intro
The GeForce 9400 GT 256MB comes with clock speeds of 550 MHz on the GPU, and 400 MHz on the 256 MB of GDDR2 RAM. It features 16 SPUs as well as 8 Texture Address Units and 4 ROPs.Compare those specs to the GeForce GTX 460 1GB, which makes use of a 40 nm design. nVidia has clocked the core frequency at 675 MHz. The GDDR5 RAM works at a speed of 900 MHz on this specific card. It features 336 SPUs as well as 56 TAUs and 32 Rasterization Operator Units.
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
Performance-wise, the GeForce GTX 460 1GB should in theory be much better 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 should be much (about 759%) faster with regards to anisotropic filtering 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 using high levels of AA is important to you, then the GeForce GTX 460 1GB is superior to the GeForce 9400 GT 256MB, and very much so. (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 largest amount of information (in units of megabytes per second) that can be transported across the external memory interface in a second. The number is calculated by multiplying the interface width by its memory speed. If it uses DDR type RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.
Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied per second. This figure is worked out by multiplying the total texture units by the core clock speed of the chip. The better this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.
Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly record to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.
GeForce 9400 GT 256MBAmazon.com
Check prices at:
|
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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