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GeForce 9800 GT 512MB vs GeForce 9800 GTX+
Intro
The GeForce 9800 GT 512MB has a core clock frequency of 600 MHz and a GDDR3 memory frequency of 900 MHz. It also makes use of a 256-bit bus, and uses a 65/55 nm design. It is made up of 112 SPUs, 56 Texture Address Units, and 16 Raster Operation Units.Compare all that to the GeForce 9800 GTX+, which makes use of a 55 nm design. nVidia has set the core frequency at 738 MHz. The GDDR3 RAM runs at a frequency of 1100 MHz on this card. It features 128 SPUs along with 64 TAUs and 16 Rasterization Operator Units.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| GeForce 9800 GT 512MB |
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105 Watts |
| GeForce 9800 GTX+ |
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145 Watts |
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Memory Bandwidth
In theory, the GeForce 9800 GTX+ will be 22% quicker than the GeForce 9800 GT 512MB overall, due to its greater data rate. (explain)
| GeForce 9800 GTX+ |
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70400 MB/sec |
| GeForce 9800 GT 512MB |
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57600 MB/sec |
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Texel Rate
The GeForce 9800 GTX+ is quite a bit (about 41%) more effective at anisotropic filtering than the GeForce 9800 GT 512MB. (explain)| GeForce 9800 GTX+ |
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47232 Mtexels/sec |
| GeForce 9800 GT 512MB |
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33600 Mtexels/sec |
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Pixel Rate
If running with a high resolution is important to you, then the GeForce 9800 GTX+ is a better choice, by far. (explain)| GeForce 9800 GTX+ |
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11808 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
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GeForce 9800 GTX+Amazon.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 9800 GT 512MB | GeForce 9800 GTX+ |
|---|---|---|
| Manufacturer | nVidia | nVidia |
| Year | July 2008 | July 2008 |
| Code Name | G92a/b | G92b |
| Memory | 512 MB | 512 MB |
| Core Speed | 600 MHz | 738 MHz |
| Memory Speed | 1800 MHz | 2200 MHz |
| Power (Max TDP) | 105 watts | 145 watts |
| Bandwidth | 57600 MB/sec | 70400 MB/sec |
| Texel Rate | 33600 Mtexels/sec | 47232 Mtexels/sec |
| Pixel Rate | 9600 Mpixels/sec | 11808 Mpixels/sec |
| Unified Shaders | 112 | 128 |
| Texture Mapping Units | 56 | 64 |
| Render Output Units | 16 | 16 |
| Bus Type | GDDR3 | GDDR3 |
| Bus Width | 256-bit | 256-bit |
| Fab Process | 65/55 nm | 55 nm |
| Transistors | 754 million | 754 million |
| Bus | PCIe x16 2.0 | PCIe x16 2.0 |
| DirectX Version | DirectX 10 | DirectX 10 |
| OpenGL Version | OpenGL 3.0 | OpenGL 3.0 |
Memory Bandwidth: Memory bandwidth is the max amount of data (counted in megabytes per second) that can be transported past the external memory interface in one second. It is calculated by multiplying the bus width by its memory clock speed. If the card has DDR type memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.
Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed in one second. This figure is worked out by multiplying the total amount of texture units of the card by the core speed of the chip. The better the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.
Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly write to its local memory in a second - measured in millions of pixels per second. The figure is calculated 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 filling the screen with pixels (the image). The actual pixel fill rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.
GeForce 9800 GT 512MBAmazon.com
Check prices at:
|
GeForce 9800 GTX+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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