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GeForce 9800 GT 512MB vs GeForce GT 450 (OEM)
Intro
The GeForce 9800 GT 512MB has a clock frequency of 600 MHz and a GDDR3 memory speed of 900 MHz. It also makes use of a 256-bit memory bus, and uses a 65/55 nm design. It is comprised of 112 SPUs, 56 Texture Address Units, and 16 ROPs.Compare those specifications to the GeForce GT 450 (OEM), which comes with a clock speed of 790 MHz and a GDDR5 memory speed of 1000 MHz. It also uses a 192-bit bus, and makes use of a 40 nm design. It features 144 SPUs, 24 TAUs, and 24 Raster Operation Units.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| GeForce 9800 GT 512MB |
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105 Watts |
| GeForce GT 450 (OEM) |
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106 Watts |
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Memory Bandwidth
As far as performance goes, the GeForce GT 450 (OEM) should theoretically be quite a bit superior to the GeForce 9800 GT 512MB in general. (explain)
| GeForce GT 450 (OEM) |
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96000 MB/sec |
| GeForce 9800 GT 512MB |
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57600 MB/sec |
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Texel Rate
The GeForce 9800 GT 512MB is much (approximately 77%) more effective at AF than the GeForce GT 450 (OEM). (explain)| GeForce 9800 GT 512MB |
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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 running with a high screen resolution is important to you, then the GeForce GT 450 (OEM) is the winner, by a large margin. (explain)| GeForce GT 450 (OEM) |
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18960 Mpixels/sec |
| GeForce 9800 GT 512MB |
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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 512MBAmazon.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 512MB | GeForce GT 450 (OEM) |
|---|---|---|
| Manufacturer | nVidia | nVidia |
| Year | July 2008 | October 2010 |
| Code Name | G92a/b | GF106 |
| Memory | 512 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 information (in units of MB per second) that can be transported over the external memory interface in a second. The number is calculated by multiplying the card's interface width by its memory clock speed. In the case of DDR RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the card's 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 number of texture map elements (texels) that are processed in one second. This is calculated by multiplying the total amount of texture units by the core speed of the chip. The better this number, 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 video card can possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.
GeForce 9800 GT 512MBAmazon.com
Check prices at:
|
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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