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GeForce 9800 GT 1GB vs GeForce GT 450 (OEM)
Intro
The GeForce 9800 GT 1GB uses a 65/55 nm design. nVidia has set the core speed at 600 MHz. The GDDR3 memory runs at a frequency of 900 MHz on this particular model. It features 112 SPUs along with 56 Texture Address Units and 16 Rasterization Operator Units.Compare all that to the GeForce GT 450 (OEM), which features a core clock speed of 790 MHz and a GDDR5 memory speed of 1000 MHz. It also makes use of a 192-bit bus, and makes use of a 40 nm design. It is made up of 144 SPUs, 24 TAUs, and 24 Raster Operation Units.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| GeForce 9800 GT 1GB |
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105 Watts |
| GeForce GT 450 (OEM) |
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106 Watts |
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Memory Bandwidth
Performance-wise, the GeForce GT 450 (OEM) should theoretically be quite a bit better than the GeForce 9800 GT 1GB overall. (explain)
| GeForce GT 450 (OEM) |
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96000 MB/sec |
| GeForce 9800 GT 1GB |
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57600 MB/sec |
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Texel Rate
The GeForce 9800 GT 1GB will be much (approximately 77%) faster with regards to texture filtering than the GeForce GT 450 (OEM). (explain)| GeForce 9800 GT 1GB |
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33600 Mtexels/sec |
| GeForce GT 450 (OEM) |
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18960 Mtexels/sec |
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Pixel Rate
If using lots of anti-aliasing is important to you, then the GeForce GT 450 (OEM) is superior to the GeForce 9800 GT 1GB, and very much so. (explain)| GeForce GT 450 (OEM) |
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18960 Mpixels/sec |
| GeForce 9800 GT 1GB |
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9600 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 9800 GT 1GBAmazon.com
Check prices at:
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GeForce GT 450 (OEM)Amazon.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 9800 GT 1GB | GeForce GT 450 (OEM) |
|---|---|---|
| Manufacturer | nVidia | nVidia |
| Year | July 2008 | October 2010 |
| Code Name | G92a/b | GF106 |
| Memory | 1024 MB | 1536 MB |
| Core Speed | 600 MHz | 790 MHz |
| Memory Speed | 1800 MHz | 4000 MHz |
| Power (Max TDP) | 105 watts | 106 watts |
| Bandwidth | 57600 MB/sec | 96000 MB/sec |
| Texel Rate | 33600 Mtexels/sec | 18960 Mtexels/sec |
| Pixel Rate | 9600 Mpixels/sec | 18960 Mpixels/sec |
| Unified Shaders | 112 | 144 |
| Texture Mapping Units | 56 | 24 |
| Render Output Units | 16 | 24 |
| Bus Type | GDDR3 | GDDR5 |
| Bus Width | 256-bit | 192-bit |
| Fab Process | 65/55 nm | 40 nm |
| Transistors | 754 million | 1170 million |
| Bus | PCIe x16 2.0 | PCIe x16 |
| DirectX Version | DirectX 10 | DirectX 11 |
| OpenGL Version | OpenGL 3.0 | OpenGL 4.1 |
Memory Bandwidth: Bandwidth is the largest amount of data (measured in MB per second) that can be transferred over the external memory interface within a second. The number is calculated by multiplying the bus 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 higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.
Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed per second. This figure is worked out by multiplying the total texture units by the core speed of the chip. The better the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.
Pixel Rate: Pixel rate is the most pixels the graphics card could possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate 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 rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.
GeForce 9800 GT 1GBAmazon.com
Check prices at:
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GeForce GT 450 (OEM)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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