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Radeon HD 3850 256MB vs Radeon HD 6570 (OEM) 2GB
Intro
The Radeon HD 3850 256MB features a GPU clock speed of 668 MHz, and the 256 MB of GDDR3 memory runs at 828 MHz through a 256-bit bus. It also features 320(64x5) Stream Processors, 16 TAUs, and 16 ROPs.Compare that to the Radeon HD 6570 (OEM) 2GB, which features a core clock frequency of 650 MHz and a GDDR5 memory frequency of 1000 MHz. It also uses a 128-bit memory bus, and uses a 40 nm design. It features 480 SPUs, 24 Texture Address Units, and 8 ROPs.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| Radeon HD 6570 (OEM) 2GB |
|
50 Watts |
| Radeon HD 3850 256MB |
|
75 Watts |
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Memory Bandwidth
The Radeon HD 6570 (OEM) 2GB should in theory perform a lot faster than the Radeon HD 3850 256MB in general. (explain)
| Radeon HD 6570 (OEM) 2GB |
|
64000 MB/sec |
| Radeon HD 3850 256MB |
|
52992 MB/sec |
|
|
Texel Rate
The Radeon HD 6570 (OEM) 2GB should be much (more or less 46%) faster with regards to anisotropic filtering than the Radeon HD 3850 256MB. (explain)| Radeon HD 6570 (OEM) 2GB |
|
15600 Mtexels/sec |
| Radeon HD 3850 256MB |
|
10688 Mtexels/sec |
|
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Pixel Rate
The Radeon HD 3850 256MB is much (about 106%) faster with regards to FSAA than the Radeon HD 6570 (OEM) 2GB, and should be able to handle higher resolutions without losing too much performance. (explain)| Radeon HD 3850 256MB |
|
10688 Mpixels/sec |
| Radeon HD 6570 (OEM) 2GB |
|
5200 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.
Radeon HD 3850 256MBAmazon.com
Other US-based stores
Amazon.co.uk
Amazon.de
Amazon.fr
|
Radeon HD 6570 (OEM) 2GBAmazon.com
Other US-based stores
Amazon.co.uk
Amazon.de
Amazon.fr
|
Specifications
| Model | Radeon HD 3850 256MB | Radeon HD 6570 (OEM) 2GB |
|---|---|---|
| Manufacturer | ATi | ATi |
| Year | Nov 19, 2007 | February 2011 |
| Code Name | RV670 PRO | Turks |
| Fab Process | 55 nm | 40 nm |
| Bus | PCIe 2.0 x16/AGP 8x | PCIe 2.1 x16 |
| Memory | 256 MB | 1024 MB |
| Core Speed | 668 MHz | 650 MHz |
| Shader Speed | N/A MHz | (N/A) MHz |
| Memory Speed | 828 MHz | 1000 MHz |
| Unified Shaders | 320(64x5) | 480 |
| Texture Mapping Units | 16 | 24 |
| Render Output Units | 16 | 8 |
| Bus Type | GDDR3 | GDDR5 |
| Bus Width | 256-bit | 128-bit |
| DirectX Version | DirectX 10.1 | DirectX 11 |
| OpenGL Version | OpenGL 3.0 | OpenGL 4.1 |
| Power (Max TDP) | 75 watts | 50 watts |
| Shader Model | 4.1 | 5.0 |
| Bandwidth | 52992 MB/sec | 64000 MB/sec |
| Texel Rate | 10688 Mtexels/sec | 15600 Mtexels/sec |
| Pixel Rate | 10688 Mpixels/sec | 5200 Mpixels/sec |
Memory Bandwidth: Bandwidth is the max amount of information (measured in megabytes per second) that can be moved across the external memory interface within a second. It is worked out by multiplying the card's interface width by its memory clock speed. If it uses DDR type memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.
Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed in one second. This figure is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The better this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.
Pixel Rate: Pixel rate is the most pixels the video card can possibly record to the 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 core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.
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