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Radeon HD 4870 512MB vs Radeon HD 6670 (OEM) 1GB
Intro
The Radeon HD 4870 512MB features a core clock speed of 750 MHz and a GDDR5 memory speed of 900 MHz. It also uses a 256-bit bus, and makes use of a 55 nm design. It is comprised of 800(160x5) SPUs, 40 TAUs, and 16 ROPs.Compare those specifications to the Radeon HD 6670 (OEM) 1GB, which makes use of a 40 nm design. AMD has set the core speed at 800 MHz. The GDDR5 memory works at a speed of 1000 MHz on this specific card. It features 480 SPUs as well as 24 TAUs and 8 ROPs.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| Radeon HD 6670 (OEM) 1GB |
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63 Watts |
| Radeon HD 4870 512MB |
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150 Watts |
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Memory Bandwidth
Theoretically, the Radeon HD 4870 512MB should perform a lot faster than the Radeon HD 6670 (OEM) 1GB overall. (explain)
| Radeon HD 4870 512MB |
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115200 MB/sec |
| Radeon HD 6670 (OEM) 1GB |
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64000 MB/sec |
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Texel Rate
The Radeon HD 4870 512MB should be much (more or less 56%) faster with regards to texture filtering than the Radeon HD 6670 (OEM) 1GB. (explain)| Radeon HD 4870 512MB |
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30000 Mtexels/sec |
| Radeon HD 6670 (OEM) 1GB |
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19200 Mtexels/sec |
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Pixel Rate
The Radeon HD 4870 512MB will be quite a bit (more or less 88%) better at FSAA than the Radeon HD 6670 (OEM) 1GB, and also capable of handling higher screen resolutions more effectively. (explain)| Radeon HD 4870 512MB |
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12000 Mpixels/sec |
| Radeon HD 6670 (OEM) 1GB |
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6400 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 4870 512MBAmazon.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 4870 512MB | Radeon HD 6670 (OEM) 1GB |
|---|---|---|
| Manufacturer | AMD | AMD |
| Year | Jun 25, 2008 | February 2011 |
| Code Name | RV770 XT | Turks |
| Memory | 512 MB | 1024 MB |
| Core Speed | 750 MHz | 800 MHz |
| Memory Speed | 3600 MHz | 4000 MHz |
| Power (Max TDP) | 150 watts | 63 watts |
| Bandwidth | 115200 MB/sec | 64000 MB/sec |
| Texel Rate | 30000 Mtexels/sec | 19200 Mtexels/sec |
| Pixel Rate | 12000 Mpixels/sec | 6400 Mpixels/sec |
| Unified Shaders | 800(160x5) | 480 |
| Texture Mapping Units | 40 | 24 |
| Render Output Units | 16 | 8 |
| Bus Type | GDDR5 | GDDR5 |
| Bus Width | 256-bit | 128-bit |
| Fab Process | 55 nm | 40 nm |
| Transistors | 956 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: Bandwidth is the maximum amount of data (measured in megabytes per second) that can be transported over the external memory interface in one second. It's worked out by multiplying the interface width by the speed of its memory. If the card has DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.
Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed per second. This is calculated by multiplying the total number of texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.
Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.
Radeon HD 4870 512MBAmazon.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.
|
Comments
One Response to “Radeon HD 4870 512MB vs Radeon HD 6670 (OEM) 1GB”[...] Originally Posted by CC's left foot Nice troll job, you almost got me But I'm not trolling.. I'm 100% serious.. Do you know what you're talking about? It's rumoured that the Wii U will use something similar to a Radeon HD 4870, and the new Xbox will be something like 6670. 4870 better than a 6670. Radeon HD 4870 512MB vs Radeon HD 6670 (OEM) 1GB – Performance Comparison Benchmarks @ Hardwar... [...]