 |
 |
|
|
|
GeForce 8600 GT 1GB DDR2 vs GeForce 8600 GT 512MB DDR2
Intro
The GeForce 8600 GT 1GB DDR2 comes with core clock speeds of 540 MHz on the GPU, and 400 MHz on the 1024 MB of DDR2 RAM. It features 32 SPUs as well as 16 TAUs and 8 ROPs.Compare all that to the GeForce 8600 GT 512MB DDR2, which features a GPU core clock speed of 540 MHz, and 512 MB of DDR2 memory running at 400 MHz through a 128-bit bus. It also features 32 SPUs, 16 Texture Address Units, and 8 Raster Operation Units.
Power Usage and Theoretical Benchmarks
Both cards have the same power consumption.Memory Bandwidth
Both cards have exactly the same memory bandwidth, so in theory they should perform exactly the same. (explain)
Texel Rate
Both cards have the exact same texel fill rate, so theoretically they should be equally good at at AF. (explain)Pixel Rate
Both cards have the exact same pixel rate, so theoretically they should perform equally good at at full screen anti-aliasing, 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
Please note that the price comparisons are based on search keywords, and might not be the exact same card listed on this page. We have no control over the accuracy of their search results.
GeForce 8600 GT 1GB DDR2Amazon.com
Other US-based stores
Amazon.co.uk
Amazon.de
Amazon.fr
|
GeForce 8600 GT 512MB DDR2Amazon.com
Other US-based stores
Amazon.co.uk
Amazon.de
Amazon.fr
|
Specifications
| Model | GeForce 8600 GT 1GB DDR2 | GeForce 8600 GT 512MB DDR2 |
|---|---|---|
| Manufacturer | nVidia | nVidia |
| Year | April 2007 | April 2007 |
| Code Name | G84 | G84 |
| Fab Process | 80 nm | 80 nm |
| Bus | PCIe x16 | PCIe x16 |
| Memory | 1024 MB | 512 MB |
| Core Speed | 540 MHz | 540 MHz |
| Shader Speed | 1180 MHz | 1180 MHz |
| Memory Speed | 400 MHz | 400 MHz |
| Unified Shaders | 32 | 32 |
| Texture Mapping Units | 16 | 16 |
| Render Output Units | 8 | 8 |
| Bus Type | DDR2 | DDR2 |
| Bus Width | 128-bit | 128-bit |
| DirectX Version | DirectX 10 | DirectX 10 |
| OpenGL Version | OpenGL 3.0 | OpenGL 3.0 |
| Power (Max TDP) | 47 watts | 47 watts |
| Shader Model | 4.0 | 4.0 |
| Bandwidth | 12800 MB/sec | 12800 MB/sec |
| Texel Rate | 8640 Mtexels/sec | 8640 Mtexels/sec |
| Pixel Rate | 4320 Mpixels/sec | 4320 Mpixels/sec |
Memory Bandwidth: Bandwidth is the maximum amount of data (measured in megabytes per second) that can be transferred across the external memory interface in a second. The number is worked out by multiplying the card's bus width by the speed of its memory. If the card has DDR memory, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.
Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied in one second. This number is calculated by multiplying the total number of texture units 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 in a second.
Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly record to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of colour ROPs by the clock speed of the card. 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 many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.
Comments
Be the first to leave a comment!