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GeForce 9400 GT 256MB vs Radeon HD 6570 (OEM) 1GB
Intro
The GeForce 9400 GT 256MB uses a 65 nm design. nVidia has set the core frequency at 550 MHz. The GDDR2 memory runs at a frequency of 400 MHz on this particular card. It features 16 SPUs along with 8 Texture Address Units and 4 Rasterization Operator Units.Compare those specifications to the Radeon HD 6570 (OEM) 1GB, which comes with a GPU core clock speed of 650 MHz, and 1024 MB of GDDR3 memory running at 900 MHz through a 128-bit bus. It also is made up of 480 SPUs, 24 TAUs, and 8 Raster Operation Units.
Power Usage and Theoretical Benchmarks
Both cards have the same power consumption.Memory Bandwidth
Theoretically speaking, the Radeon HD 6570 (OEM) 1GB should be 125% faster than the GeForce 9400 GT 256MB overall, because of its greater data rate. (explain)
| Radeon HD 6570 (OEM) 1GB |
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28800 MB/sec |
| GeForce 9400 GT 256MB |
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12800 MB/sec |
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Texel Rate
The Radeon HD 6570 (OEM) 1GB should be much (about 255%) more effective at texture filtering than the GeForce 9400 GT 256MB. (explain)| Radeon HD 6570 (OEM) 1GB |
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15600 Mtexels/sec |
| GeForce 9400 GT 256MB |
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4400 Mtexels/sec |
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Pixel Rate
If running with a high resolution is important to you, then the Radeon HD 6570 (OEM) 1GB is the winner, by far. (explain)| Radeon HD 6570 (OEM) 1GB |
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5200 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
Check prices at:
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Radeon HD 6570 (OEM) 1GBAmazon.com
Check prices at:
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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 | Radeon HD 6570 (OEM) 1GB |
|---|---|---|
| Manufacturer | nVidia | AMD |
| Year | August 2008 | February 2011 |
| Code Name | G96a | Turks |
| Memory | 256 MB | 1024 MB |
| Core Speed | 550 MHz | 650 MHz |
| Memory Speed | 800 MHz | 1800 MHz |
| Power (Max TDP) | 50 watts | 50 watts |
| Bandwidth | 12800 MB/sec | 28800 MB/sec |
| Texel Rate | 4400 Mtexels/sec | 15600 Mtexels/sec |
| Pixel Rate | 2200 Mpixels/sec | 5200 Mpixels/sec |
| Unified Shaders | 16 | 480 |
| Texture Mapping Units | 8 | 24 |
| Render Output Units | 4 | 8 |
| Bus Type | GDDR2 | GDDR3 |
| Bus Width | 128-bit | 128-bit |
| Fab Process | 65 nm | 40 nm |
| Transistors | 314 million | 715 million |
| Bus | PCIe x16 2.0, PCI | PCIe 2.1 x16 |
| DirectX Version | DirectX 10 | DirectX 11 |
| OpenGL Version | OpenGL 3.0 | OpenGL 4.1 |
Memory Bandwidth: Bandwidth is the max amount of information (measured in megabytes per second) that can be transferred over the external memory interface in one second. It is calculated by multiplying the bus width by its memory clock speed. If it uses DDR type RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.
Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed per second. This is calculated by multiplying the total number of texture units by the core clock speed of the chip. The better this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.
Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly write to the local memory in one second - measured in millions of pixels per second. The figure 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 potential to reach the max fill rate.
GeForce 9400 GT 256MBAmazon.com
Check prices at:
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Radeon HD 6570 (OEM) 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.
|
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