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GeForce 8600 GT 1GB DDR2 vs GeForce 8600 GT 512MB DDR2
Intro
The GeForce 8600 GT 1GB DDR2 comes with a GPU core speed of 540 MHz, and the 1024 MB of DDR2 memory runs at 400 MHz through a 128-bit bus. It also features 32 Stream Processors, 16 Texture Address Units, and 8 Raster Operation Units.Compare those specs to the GeForce 8600 GT 512MB DDR2, which has GPU clock speed of 540 MHz, and 512 MB of DDR2 RAM running at 400 MHz through a 128-bit bus. It also is comprised of 32 Stream Processors, 16 Texture Address Units, and 8 ROPs.
Power Usage and Theoretical Benchmarks
Both cards have the same power consumption.Memory Bandwidth
Both cards have exactly the same bandwidth, so in theory they should perform exactly the same. (explain)
Texel Rate
Both cards have exactly the same texel fill rate, so theoretically they should perform equally good at at anisotropic filtering. (explain)Pixel Rate
Both cards have the exact 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 8600 GT 1GB DDR2Amazon.com
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GeForce 8600 GT 512MB DDR2Amazon.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 8600 GT 1GB DDR2 | GeForce 8600 GT 512MB DDR2 |
|---|---|---|
| Manufacturer | nVidia | nVidia |
| Year | April 2007 | April 2007 |
| Code Name | G84 | G84 |
| Memory | 1024 MB | 512 MB |
| Core Speed | 540 MHz | 540 MHz |
| Memory Speed | 800 MHz | 800 MHz |
| Power (Max TDP) | 47 watts | 47 watts |
| Bandwidth | 12800 MB/sec | 12800 MB/sec |
| Texel Rate | 8640 Mtexels/sec | 8640 Mtexels/sec |
| Pixel Rate | 4320 Mpixels/sec | 4320 Mpixels/sec |
| Unified Shaders | 32 | 32 |
| Texture Mapping Units | 16 | 16 |
| Render Output Units | 8 | 8 |
| Bus Type | DDR2 | DDR2 |
| Bus Width | 128-bit | 128-bit |
| Fab Process | 80 nm | 80 nm |
| Transistors | 289 million | 289 million |
| Bus | PCIe x16 | PCIe x16 |
| DirectX Version | DirectX 10 | DirectX 10 |
| OpenGL Version | OpenGL 3.0 | OpenGL 3.0 |
Memory Bandwidth: Memory bandwidth is the largest amount of data (counted in MB per second) that can be moved over the external memory interface in a second. It's worked out by multiplying the interface width by its memory speed. If the card has DDR type memory, the result 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 AA, 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 figure is worked out 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 graphics 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 maximum number of pixels the video card can possibly record to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.
GeForce 8600 GT 1GB DDR2Amazon.com
Check prices at:
|
GeForce 8600 GT 512MB DDR2Amazon.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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