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GeForce 8600 GT 1GB GDDR3 vs GeForce 8600 GT 256MB GDDR3
Intro
The GeForce 8600 GT 1GB GDDR3 has a GPU core speed of 540 MHz, and the 1024 MB of GDDR3 RAM is set to run at 700 MHz through a 128-bit bus. It also is made up of 32 Stream Processors, 16 Texture Address Units, and 8 ROPs.Compare those specs to the GeForce 8600 GT 256MB GDDR3, which features core clock speeds of 540 MHz on the GPU, and 700 MHz on the 256 MB of GDDR3 RAM. It features 32 SPUs along with 16 Texture Address Units and 8 Rasterization Operator Units.
Power Usage and Theoretical Benchmarks
Both cards have the same power consumption.Memory Bandwidth
Both cards have exactly the same bandwidth, so theoretically they should perform exactly the same. (explain)
Texel Rate
Both cards have the exact same texel fill rate, so in theory they should be equally good at at AF. (explain)Pixel Rate
Both cards have exactly the same pixel fill rate, so theoretically they should perform 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 GDDR3Amazon.com
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GeForce 8600 GT 256MB GDDR3Amazon.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 GDDR3 | GeForce 8600 GT 256MB GDDR3 |
|---|---|---|
| Manufacturer | nVidia | nVidia |
| Year | April 2007 | April 2007 |
| Code Name | G84 | G84 |
| Memory | 1024 MB | 256 MB |
| Core Speed | 540 MHz | 540 MHz |
| Memory Speed | 1400 MHz | 1400 MHz |
| Power (Max TDP) | 47 watts | 47 watts |
| Bandwidth | 22400 MB/sec | 22400 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 | GDDR3 | GDDR3 |
| 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: Bandwidth is the maximum amount of information (counted in megabytes per second) that can be transferred across the external memory interface within a second. It's worked out by multiplying the interface width by the speed of its memory. If it uses DDR type RAM, it must be multiplied by 2 once again. If 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 higher screen resolutions.
Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed per second. This is calculated by multiplying the total amount of texture units by the core clock speed of the chip. The higher the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.
Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly write to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.
GeForce 8600 GT 1GB GDDR3Amazon.com
Check prices at:
|
GeForce 8600 GT 256MB GDDR3Amazon.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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