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GeForce 8800 GT 1GB vs GeForce 9800 GT 512MB
Intro
The GeForce 8800 GT 1GB features core speeds of 600 MHz on the GPU, and 900 MHz on the 1024 MB of GDDR3 memory. It features 112 SPUs as well as 56 TAUs and 16 ROPs.Compare those specifications to the GeForce 9800 GT 512MB, which uses a 65/55 nm design. nVidia has set the core speed at 600 MHz. The GDDR3 RAM works at a speed of 900 MHz on this particular model. It features 112 SPUs as well as 56 TAUs and 16 ROPs.
Power Usage and Theoretical Benchmarks
Both cards have the same power consumption.Memory Bandwidth
Both cards have exactly the same memory bandwidth, so theoretically they should perform exactly the same. (explain)
Texel Rate
Both cards have exactly the same texel rate, so in theory they should be equally good at at AF. (explain)Pixel Rate
Both cards have exactly the same pixel rate, so theoretically they should perform equally good at at anti-aliasing, and be able to handle the same resolutions. (explain)
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 8800 GT 1GBAmazon.com
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GeForce 9800 GT 512MBAmazon.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 8800 GT 1GB | GeForce 9800 GT 512MB |
|---|---|---|
| Manufacturer | nVidia | nVidia |
| Year | Dec 2007 | July 2008 |
| Code Name | G92 | G92a/b |
| Memory | 1024 MB | 512 MB |
| Core Speed | 600 MHz | 600 MHz |
| Memory Speed | 1800 MHz | 1800 MHz |
| Power (Max TDP) | 105 watts | 105 watts |
| Bandwidth | 57600 MB/sec | 57600 MB/sec |
| Texel Rate | 33600 Mtexels/sec | 33600 Mtexels/sec |
| Pixel Rate | 9600 Mpixels/sec | 9600 Mpixels/sec |
| Unified Shaders | 112 | 112 |
| Texture Mapping Units | 56 | 56 |
| Render Output Units | 16 | 16 |
| Bus Type | GDDR3 | GDDR3 |
| Bus Width | 256-bit | 256-bit |
| Fab Process | 65 nm | 65/55 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 largest amount of information (counted in MB per second) that can be transported across the external memory interface within a second. It's calculated by multiplying the bus width by its memory clock speed. If the card has DDR memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.
Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied in one second. This is calculated by multiplying the total number of texture units of the card by the core clock 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 applied in one second.
Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly record 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 clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.
GeForce 8800 GT 1GBAmazon.com
Check prices at:
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GeForce 9800 GT 512MBAmazon.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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