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Radeon HD 4850 1GB vs Radeon HD 5770
Intro
The Radeon HD 4850 1GB uses a 55 nm design. AMD has clocked the core frequency at 625 MHz. The GDDR4 RAM runs at a frequency of 993 MHz on this model. It features 800(160x5) SPUs along with 40 TAUs and 16 ROPs.Compare all that to the Radeon HD 5770, which comes with GPU core speed of 850 MHz, and 1024 MB of GDDR5 memory set to run at 1200 MHz through a 128-bit bus. It also is comprised of 800(160x5) SPUs, 40 TAUs, and 16 Raster Operation Units.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| Radeon HD 5770 |
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108 Watts |
| Radeon HD 4850 1GB |
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110 Watts |
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Memory Bandwidth
Performance-wise, the Radeon HD 5770 should theoretically be much superior to the Radeon HD 4850 1GB overall. (explain)
| Radeon HD 5770 |
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76800 MB/sec |
| Radeon HD 4850 1GB |
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63552 MB/sec |
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Texel Rate
The Radeon HD 5770 will be much (about 36%) better at texture filtering than the Radeon HD 4850 1GB. (explain)| Radeon HD 5770 |
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34000 Mtexels/sec |
| Radeon HD 4850 1GB |
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25000 Mtexels/sec |
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Pixel Rate
The Radeon HD 5770 will be much (about 36%) better at AA than the Radeon HD 4850 1GB, and also will be able to handle higher screen resolutions better. (explain)| Radeon HD 5770 |
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13600 Mpixels/sec |
| Radeon HD 4850 1GB |
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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
Radeon HD 4850 1GBAmazon.com
Check prices at:
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Radeon HD 5770Amazon.com
Check prices at:
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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 | Radeon HD 4850 1GB | Radeon HD 5770 |
|---|---|---|
| Manufacturer | AMD | AMD |
| Year | Jun 25, 2008 | October 13, 2009 |
| Code Name | RV770 PRO | Juniper XT |
| Memory | 1024 MB | 1024 MB |
| Core Speed | 625 MHz | 850 MHz |
| Memory Speed | 1986 MHz | 4800 MHz |
| Power (Max TDP) | 110 watts | 108 watts |
| Bandwidth | 63552 MB/sec | 76800 MB/sec |
| Texel Rate | 25000 Mtexels/sec | 34000 Mtexels/sec |
| Pixel Rate | 10000 Mpixels/sec | 13600 Mpixels/sec |
| Unified Shaders | 800(160x5) | 800(160x5) |
| Texture Mapping Units | 40 | 40 |
| Render Output Units | 16 | 16 |
| Bus Type | GDDR4 | GDDR5 |
| Bus Width | 256-bit | 128-bit |
| Fab Process | 55 nm | 40 nm |
| Transistors | 956 million | 1040 million |
| Bus | PCIe 2.0 x16 | PCIe 2.1 x16 |
| DirectX Version | DirectX 10.1 | DirectX 11 |
| OpenGL Version | OpenGL 3.0 | OpenGL 3.2 |
Memory Bandwidth: Bandwidth is the max amount of information (in units of megabytes per second) that can be transferred past the external memory interface in one second. It is worked out by multiplying the card's interface width by its memory clock speed. In the case of DDR RAM, 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, HDR and higher screen resolutions.
Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed per second. This figure is worked out by multiplying the total number of texture units by the core speed of the chip. The higher the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.
Pixel Rate: Pixel rate is the most pixels the graphics card can possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.
Radeon HD 4850 1GBAmazon.com
Check prices at:
|
Radeon HD 5770Amazon.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.
|
Comments
One Response to “Radeon HD 4850 1GB vs Radeon HD 5770”[...] excelente para ver el rendimiento y consumo. Insisto, la 5770 es la mejor en consumo/rendimiento, Radeon HD 4850 1GB vs Radeon HD 5770 – Performance Comparison Benchmarks @ Hardware Compare Cuantos watts reales gasta tu tarjeta? Report: the true power consumption of 73 graphics cards [...]