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GeForce 8600 GT 512MB DDR2 vs Radeon HD 5450
Intro
The GeForce 8600 GT 512MB DDR2 has core clock speeds of 540 MHz on the GPU, and 400 MHz on the 512 MB of DDR2 RAM. It features 32 SPUs along with 16 TAUs and 8 Rasterization Operator Units.Compare that to the Radeon HD 5450, which uses a 40 nm design. ATi has set the core speed at 650 MHz. The DDR3 RAM runs at a speed of 800 MHz on this particular model. It features 80(16x5) SPUs as well as 8 TAUs and 4 Rasterization Operator Units.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| Radeon HD 5450 |
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19 Watts |
| GeForce 8600 GT 512MB DDR2 |
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47 Watts |
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Memory Bandwidth
Both cards have the exact same memory bandwidth, so theoretically they should perform exactly the same. (explain)
Texel Rate
The GeForce 8600 GT 512MB DDR2 is much (about 66%) more effective at anisotropic filtering than the Radeon HD 5450. (explain)| GeForce 8600 GT 512MB DDR2 |
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8640 Mtexels/sec |
| Radeon HD 5450 |
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5200 Mtexels/sec |
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Pixel Rate
The GeForce 8600 GT 512MB DDR2 will be quite a bit (more or less 66%) better at anti-aliasing than the Radeon HD 5450, and should be able to handle higher resolutions without losing too much performance. (explain)| GeForce 8600 GT 512MB DDR2 |
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4320 Mpixels/sec |
| Radeon HD 5450 |
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2600 Mpixels/sec |
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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 512MB DDR2Amazon.com
Other US-based stores
Amazon.co.uk
Amazon.de
Amazon.fr
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Radeon HD 5450Amazon.com
Other US-based stores
Amazon.co.uk
Amazon.de
Amazon.fr
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Specifications
| Model | GeForce 8600 GT 512MB DDR2 | Radeon HD 5450 |
|---|---|---|
| Manufacturer | nVidia | ATi |
| Year | April 2007 | February 4, 2010 |
| Code Name | G84 | Cedar PRO |
| Fab Process | 80 nm | 40 nm |
| Bus | PCIe x16 | PCIe 2.1 x16 |
| Memory | 512 MB | 512 MB |
| Core Speed | 540 MHz | 650 MHz |
| Shader Speed | 1180 MHz | (N/A) MHz |
| Memory Speed | 400 MHz | 800 MHz |
| Unified Shaders | 32 | 80(16x5) |
| Texture Mapping Units | 16 | 8 |
| Render Output Units | 8 | 4 |
| Bus Type | DDR2 | DDR3 |
| Bus Width | 128-bit | 64-bit |
| DirectX Version | DirectX 10 | DirectX 11 |
| OpenGL Version | OpenGL 3.0 | OpenGL 3.2 |
| Power (Max TDP) | 47 watts | 19 watts |
| Shader Model | 4.0 | 5.0 |
| Bandwidth | 12800 MB/sec | 12800 MB/sec |
| Texel Rate | 8640 Mtexels/sec | 5200 Mtexels/sec |
| Pixel Rate | 4320 Mpixels/sec | 2600 Mpixels/sec |
Memory Bandwidth: Memory bandwidth is the max amount of data (measured in megabytes per second) that can be transported over the external memory interface within a second. It's calculated by multiplying the card's interface width by the speed of its memory. If it uses DDR type RAM, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.
Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied per second. This figure is calculated by multiplying the total number of texture units of the card by the core clock speed of the chip. The higher this number, the better the graphics card will be at 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 that the graphics card can possibly write to its local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number 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 drawing the pixels (image) on the screen. The actual pixel output rate also depends on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.
Comments
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