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Radeon HD 3850 1GB vs Radeon HD 6570 (OEM) 2GB
Intro
The Radeon HD 3850 1GB comes with a GPU core speed of 668 MHz, and the 1024 MB of GDDR3 RAM runs at 828 MHz through a 256-bit bus. It also is made up of 320(64x5) SPUs, 16 TAUs, and 16 ROPs.Compare all that to the Radeon HD 6570 (OEM) 2GB, which uses a 40 nm design. ATi has clocked the core speed at 650 MHz. The GDDR5 memory works at a speed of 1000 MHz on this particular card. It features 480 SPUs as well as 24 TAUs and 8 Rasterization Operator Units.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| Radeon HD 6570 (OEM) 2GB |
|
50 Watts |
| Radeon HD 3850 1GB |
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75 Watts |
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Memory Bandwidth
Performance-wise, the Radeon HD 6570 (OEM) 2GB should theoretically be a lot better than the Radeon HD 3850 1GB overall. (explain)
| Radeon HD 6570 (OEM) 2GB |
|
64000 MB/sec |
| Radeon HD 3850 1GB |
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52992 MB/sec |
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Texel Rate
The Radeon HD 6570 (OEM) 2GB should be a lot (about 46%) more effective at anisotropic filtering than the Radeon HD 3850 1GB. (explain)| Radeon HD 6570 (OEM) 2GB |
|
15600 Mtexels/sec |
| Radeon HD 3850 1GB |
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10688 Mtexels/sec |
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Pixel Rate
The Radeon HD 3850 1GB should be quite a bit (more or less 106%) more effective at anti-aliasing than the Radeon HD 6570 (OEM) 2GB, and will be capable of handling higher screen resolutions better. (explain)| Radeon HD 3850 1GB |
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10688 Mpixels/sec |
| Radeon HD 6570 (OEM) 2GB |
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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 1GBAmazon.com
Other US-based stores
Amazon.co.uk
Amazon.de
Amazon.fr
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Radeon HD 6570 (OEM) 2GBAmazon.com
Other US-based stores
Amazon.co.uk
Amazon.de
Amazon.fr
|
Specifications
| Model | Radeon HD 3850 1GB | 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 | 1024 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 maximum amount of data (counted in megabytes per second) that can be transferred across the external memory interface within a second. It is calculated by multiplying the interface width by its memory speed. If it uses DDR type memory, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.
Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed in one second. This number is worked out by multiplying the total amount of texture units of the card by the core clock speed of the chip. The better the texel rate, 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 maximum amount of pixels the video card can possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.
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