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GeForce 8800 GT 512MB vs GeForce 9800 GT 1GB
Intro
The GeForce 8800 GT 512MB uses a 65 nm design. nVidia has set the core speed at 600 MHz. The GDDR3 RAM works at a frequency of 900 MHz on this particular card. It features 112 SPUs along with 56 Texture Address Units and 16 ROPs.Compare all of that to the GeForce 9800 GT 1GB, which features core clock speeds of 600 MHz on the GPU, and 900 MHz on the 1024 MB of GDDR3 memory. It features 112 SPUs along with 56 TAUs and 16 Rasterization Operator Units.
Power Usage and Theoretical Benchmarks
Both cards have the same power consumption.Memory Bandwidth
Both cards have the exact same memory bandwidth, so theoretically they should have the same performance. (explain)
Texel Rate
Both cards have exactly the same texel rate, so in theory they should be equally good at at anisotropic filtering. (explain)Pixel Rate
Both cards have exactly the same pixel rate, so theoretically they should be equally good at at FSAA, and be capable of handling 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 512MBAmazon.com
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GeForce 9800 GT 1GBAmazon.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 512MB | GeForce 9800 GT 1GB |
|---|---|---|
| Manufacturer | nVidia | nVidia |
| Year | Oct 2007 | July 2008 |
| Code Name | G92 | G92a/b |
| Memory | 512 MB | 1024 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 (in units of MB per second) that can be transferred over the external memory interface in a second. The number is calculated by multiplying the interface width by its memory clock speed. If the card has DDR RAM, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.
Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied in one second. This is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The higher this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.
Pixel Rate: Pixel rate is the most pixels the graphics card can possibly record to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.
GeForce 8800 GT 512MBAmazon.com
Check prices at:
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GeForce 9800 GT 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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