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GeForce GTX 580 3GB vs Radeon HD 4850 2GB
Intro
The GeForce GTX 580 3GB features a clock speed of 772 MHz and a GDDR5 memory frequency of 1002 MHz. It also uses a 384-bit bus, and uses a 40 nm design. It features 512 SPUs, 64 Texture Address Units, and 48 ROPs.Compare that to the Radeon HD 4850 2GB, which features GPU core speed of 625 MHz, and 2048 MB of GDDR4 memory running at 993 MHz through a 256-bit bus. It also is made up of 800(160x5) SPUs, 40 TAUs, and 16 Raster Operation Units.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| Radeon HD 4850 2GB |
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110 Watts |
| GeForce GTX 580 3GB |
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244 Watts |
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Memory Bandwidth
The GeForce GTX 580 3GB should theoretically be much faster than the Radeon HD 4850 2GB overall. (explain)
| GeForce GTX 580 3GB |
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192384 MB/sec |
| Radeon HD 4850 2GB |
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63552 MB/sec |
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Texel Rate
The GeForce GTX 580 3GB is quite a bit (approximately 98%) more effective at AF than the Radeon HD 4850 2GB. (explain)| GeForce GTX 580 3GB |
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49408 Mtexels/sec |
| Radeon HD 4850 2GB |
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25000 Mtexels/sec |
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Pixel Rate
If running with lots of anti-aliasing is important to you, then the GeForce GTX 580 3GB is a better choice, by far. (explain)| GeForce GTX 580 3GB |
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37056 Mpixels/sec |
| Radeon HD 4850 2GB |
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10000 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 GTX 580 3GBAmazon.com
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Radeon HD 4850 2GBAmazon.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 GTX 580 3GB | Radeon HD 4850 2GB |
|---|---|---|
| Manufacturer | nVidia | AMD |
| Year | November 2010 | Jun 25, 2008 |
| Code Name | GF110 | RV770 PRO |
| Memory | 3072 MB | 2048 MB |
| Core Speed | 772 MHz | 625 MHz |
| Memory Speed | 4008 MHz | 1986 MHz |
| Power (Max TDP) | 244 watts | 110 watts |
| Bandwidth | 192384 MB/sec | 63552 MB/sec |
| Texel Rate | 49408 Mtexels/sec | 25000 Mtexels/sec |
| Pixel Rate | 37056 Mpixels/sec | 10000 Mpixels/sec |
| Unified Shaders | 512 | 800(160x5) |
| Texture Mapping Units | 64 | 40 |
| Render Output Units | 48 | 16 |
| Bus Type | GDDR5 | GDDR4 |
| Bus Width | 384-bit | 256-bit |
| Fab Process | 40 nm | 55 nm |
| Transistors | 3000 million | 956 million |
| Bus | PCIe x16 | PCIe 2.0 x16 |
| DirectX Version | DirectX 11 | DirectX 10.1 |
| OpenGL Version | OpenGL 4.1 | OpenGL 3.0 |
Memory Bandwidth: Memory bandwidth is the maximum amount of data (counted in MB per second) that can be transferred over the external memory interface in one second. It is calculated by multiplying the interface width by its memory speed. If the card has DDR type RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher 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 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 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 processed per second.
Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly record to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.
GeForce GTX 580 3GBAmazon.com
Check prices at:
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Radeon HD 4850 2GBAmazon.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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