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Radeon HD 4850 1GB vs Radeon HD 5770
Intro
The Radeon HD 4850 1GB comes with a core clock frequency of 625 MHz and a GDDR4 memory speed of 993 MHz. It also makes use of a 256-bit bus, and makes use of a 55 nm design. It features 800(160x5) SPUs, 40 TAUs, and 16 ROPs.Compare those specifications to the Radeon HD 5770, which features a core clock speed of 850 MHz and a GDDR5 memory frequency of 1200 MHz. It also features a 128-bit bus, and uses a 40 nm design. It is made up of 800(160x5) SPUs, 40 TAUs, and 16 ROPs.
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
The Radeon HD 5770, in theory, should perform much faster than the Radeon HD 4850 1GB in general. (explain)
| Radeon HD 5770 |
|
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 (approximately 36%) faster with regards to anisotropic 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 quite a bit (approximately 36%) better at AA than the Radeon HD 4850 1GB, and also able to handle higher resolutions without slowing down too much. (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 largest amount of data (counted in MB per second) that can be transported over the external memory interface within a second. It's calculated by multiplying the card's bus width by the speed of its memory. If it uses DDR RAM, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.
Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed per second. This figure is calculated by multiplying the total texture units of the card by the core speed of the chip. The better this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.
Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly record to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). 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 ability to get to the max 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 [...]