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Radeon HD 3470 256MB vs Radeon HD 6670 (OEM) 1GB
Intro
The Radeon HD 3470 256MB comes with a clock frequency of 800 MHz and a DDR2 memory frequency of 950 MHz. It also features a 128-bit memory bus, and uses a 55 nm design. It is made up of 40(8x5) SPUs, 4 TAUs, and 4 Raster Operation Units.Compare all that to the Radeon HD 6670 (OEM) 1GB, which uses a 40 nm design. AMD has set the core speed at 800 MHz. The GDDR5 RAM runs at a speed of 1000 MHz on this specific model. It features 480 SPUs along with 24 Texture Address Units and 8 ROPs.
Power Usage and Theoretical Benchmarks
Memory Bandwidth
Performance-wise, the Radeon HD 6670 (OEM) 1GB should theoretically be quite a bit better than the Radeon HD 3470 256MB overall. (explain)
| Radeon HD 6670 (OEM) 1GB |
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64000 MB/sec |
| Radeon HD 3470 256MB |
|
30400 MB/sec |
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Texel Rate
The Radeon HD 6670 (OEM) 1GB is a lot (more or less 500%) better at texture filtering than the Radeon HD 3470 256MB. (explain)| Radeon HD 6670 (OEM) 1GB |
|
19200 Mtexels/sec |
| Radeon HD 3470 256MB |
|
3200 Mtexels/sec |
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Pixel Rate
If using high levels of AA is important to you, then the Radeon HD 6670 (OEM) 1GB is a better choice, and very much so. (explain)| Radeon HD 6670 (OEM) 1GB |
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6400 Mpixels/sec |
| Radeon HD 3470 256MB |
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3200 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 3470 256MBAmazon.com
Check prices at:
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Radeon HD 6670 (OEM) 1GBAmazon.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 3470 256MB | Radeon HD 6670 (OEM) 1GB |
|---|---|---|
| Manufacturer | AMD | AMD |
| Year | 2008 | February 2011 |
| Code Name | RV620 PRO | Turks |
| Memory | 256 MB | 1024 MB |
| Core Speed | 800 MHz | 800 MHz |
| Memory Speed | 1900 MHz | 4000 MHz |
| Power (Max TDP) | (Unknown) watts | 63 watts |
| Bandwidth | 30400 MB/sec | 64000 MB/sec |
| Texel Rate | 3200 Mtexels/sec | 19200 Mtexels/sec |
| Pixel Rate | 3200 Mpixels/sec | 6400 Mpixels/sec |
| Unified Shaders | 40(8x5) | 480 |
| Texture Mapping Units | 4 | 24 |
| Render Output Units | 4 | 8 |
| Bus Type | DDR2 | GDDR5 |
| Bus Width | 128-bit | 128-bit |
| Fab Process | 55 nm | 40 nm |
| Transistors | (Unknown) million | 715 million |
| Bus | PCIe 2.0 x16 | PCIe 2.1 x16 |
| DirectX Version | DirectX 10.1 | DirectX 11 |
| OpenGL Version | OpenGL 3.0 | OpenGL 4.1 |
Memory Bandwidth: Memory bandwidth is the largest amount of data (in units of MB per second) that can be moved across the external memory interface in a second. It is calculated by multiplying the card's interface width by its memory speed. In the case of DDR memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, 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 is worked out by multiplying the total number of texture units of the card by the core clock speed of the chip. The better the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.
Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly record to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.
Radeon HD 3470 256MBAmazon.com
Check prices at:
|
Radeon HD 6670 (OEM) 1GBAmazon.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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