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GeForce 8600 GT 512MB DDR2 vs Radeon HD 4850 1GB
Intro
The GeForce 8600 GT 512MB DDR2 comes with a core clock frequency of 540 MHz and a DDR2 memory frequency of 400 MHz. It also makes use of a 128-bit memory bus, and uses a 80 nm design. It features 32 SPUs, 16 TAUs, and 8 ROPs.Compare those specs to the Radeon HD 4850 1GB, which features core speeds of 625 MHz on the GPU, and 993 MHz on the 1024 MB of GDDR4 memory. It features 800(160x5) SPUs as well as 40 Texture Address Units and 16 ROPs.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| GeForce 8600 GT 512MB DDR2 |
|
47 Watts |
| Radeon HD 4850 1GB |
|
110 Watts |
|
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Memory Bandwidth
Theoretically speaking, the Radeon HD 4850 1GB should be quite a bit faster than the GeForce 8600 GT 512MB DDR2 overall. (explain)
| Radeon HD 4850 1GB |
|
63552 MB/sec |
| GeForce 8600 GT 512MB DDR2 |
|
12800 MB/sec |
|
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Texel Rate
The Radeon HD 4850 1GB will be much (about 189%) faster with regards to AF than the GeForce 8600 GT 512MB DDR2. (explain)| Radeon HD 4850 1GB |
|
25000 Mtexels/sec |
| GeForce 8600 GT 512MB DDR2 |
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8640 Mtexels/sec |
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Pixel Rate
The Radeon HD 4850 1GB should be a lot (more or less 131%) better at FSAA than the GeForce 8600 GT 512MB DDR2, and also should be capable of handling higher resolutions without losing too much performance. (explain)| Radeon HD 4850 1GB |
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10000 Mpixels/sec |
| GeForce 8600 GT 512MB DDR2 |
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4320 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
GeForce 8600 GT 512MB DDR2Amazon.com
Check prices at:
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Radeon HD 4850 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.
Specifications
| Model | GeForce 8600 GT 512MB DDR2 | Radeon HD 4850 1GB |
|---|---|---|
| Manufacturer | nVidia | AMD |
| Year | April 2007 | Jun 25, 2008 |
| Code Name | G84 | RV770 PRO |
| Memory | 512 MB | 1024 MB |
| Core Speed | 540 MHz | 625 MHz |
| Memory Speed | 800 MHz | 1986 MHz |
| Power (Max TDP) | 47 watts | 110 watts |
| Bandwidth | 12800 MB/sec | 63552 MB/sec |
| Texel Rate | 8640 Mtexels/sec | 25000 Mtexels/sec |
| Pixel Rate | 4320 Mpixels/sec | 10000 Mpixels/sec |
| Unified Shaders | 32 | 800(160x5) |
| Texture Mapping Units | 16 | 40 |
| Render Output Units | 8 | 16 |
| Bus Type | DDR2 | GDDR4 |
| Bus Width | 128-bit | 256-bit |
| Fab Process | 80 nm | 55 nm |
| Transistors | 289 million | 956 million |
| Bus | PCIe x16 | PCIe 2.0 x16 |
| DirectX Version | DirectX 10 | DirectX 10.1 |
| OpenGL Version | OpenGL 3.0 | OpenGL 3.0 |
Memory Bandwidth: Memory bandwidth is the maximum amount of data (in units of MB per second) that can be transported past the external memory interface within a second. It's calculated by multiplying the bus width by the speed of its memory. If it uses DDR type memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.
Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied per second. This number is worked out by multiplying the total texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the graphics card will be at 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 that the graphics card could possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Raster Operations Pipelines 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 quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.
GeForce 8600 GT 512MB DDR2Amazon.com
Check prices at:
|
Radeon HD 4850 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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