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Radeon HD 4670 1GB vs Radeon HD 6670 (OEM)
Intro
The Radeon HD 4670 1GB features core clock speeds of 750 MHz on the GPU, and 1100 MHz on the 1024 MB of GDDR4/GDDR3/DDR3/DDR2 memory. It features 320(64x5) SPUs along with 32 TAUs and 8 Rasterization Operator Units.Compare those specifications to the Radeon HD 6670 (OEM), which comes with core clock speeds of 800 MHz on the GPU, and 1000 MHz on the 512 MB of GDDR5 memory. 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) |
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63 Watts |
| Radeon HD 4670 1GB |
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70 Watts |
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Memory Bandwidth
As far as performance goes, the Radeon HD 6670 (OEM) should in theory be a lot superior to the Radeon HD 4670 1GB overall. (explain)
| Radeon HD 6670 (OEM) |
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64000 MB/sec |
| Radeon HD 4670 1GB |
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35200 MB/sec |
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Texel Rate
The Radeon HD 4670 1GB is a lot (about 25%) faster with regards to texture filtering than the Radeon HD 6670 (OEM). (explain)| Radeon HD 4670 1GB |
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24000 Mtexels/sec |
| Radeon HD 6670 (OEM) |
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19200 Mtexels/sec |
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Pixel Rate
The Radeon HD 6670 (OEM) will be just a bit (more or less 7%) faster with regards to full screen anti-aliasing than the Radeon HD 4670 1GB, and able to handle higher screen resolutions more effectively. (explain)| Radeon HD 6670 (OEM) |
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6400 Mpixels/sec |
| Radeon HD 4670 1GB |
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6000 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 4670 1GBAmazon.com
Check prices at:
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Radeon HD 6670 (OEM)Amazon.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 4670 1GB | Radeon HD 6670 (OEM) |
|---|---|---|
| Manufacturer | AMD | AMD |
| Year | Sep 10, 2008 | February 2011 |
| Code Name | RV730 XT | Turks |
| Memory | 1024 MB | 512 MB |
| Core Speed | 750 MHz | 800 MHz |
| Memory Speed | 2200 MHz | 4000 MHz |
| Power (Max TDP) | 70 watts | 63 watts |
| Bandwidth | 35200 MB/sec | 64000 MB/sec |
| Texel Rate | 24000 Mtexels/sec | 19200 Mtexels/sec |
| Pixel Rate | 6000 Mpixels/sec | 6400 Mpixels/sec |
| Unified Shaders | 320(64x5) | 480 |
| Texture Mapping Units | 32 | 24 |
| Render Output Units | 8 | 8 |
| Bus Type | GDDR4/GDDR3/DDR3/DDR2 | GDDR5 |
| Bus Width | 128-bit | 128-bit |
| Fab Process | 55 nm | 40 nm |
| Transistors | 514 million | 715 million |
| Bus | PCIe 2.0 x16, AGP 8x | 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 (counted in MB per second) that can be transported past the external memory interface in a second. It's calculated by multiplying the card's interface width by the speed of its memory. If the card has DDR memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and high resolutions.
Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed in one second. This figure is calculated by multiplying the total texture units 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 in a second.
Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly record to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number 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 rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.
Radeon HD 4670 1GBAmazon.com
Check prices at:
|
Radeon HD 6670 (OEM)Amazon.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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