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Radeon HD 6450 (OEM) vs Radeon HD 6670 (OEM)
Intro
The Radeon HD 6450 (OEM) comes with a core clock speed of 625 MHz and a GDDR3 memory frequency of 800 MHz. It also makes use of a 64-bit bus, and makes use of a 40 nm design. It is made up of 160 SPUs, 8 Texture Address Units, and 4 Raster Operation Units.Compare all that to the Radeon HD 6670 (OEM), which features GPU clock speed of 800 MHz, and 512 MB of GDDR5 RAM set to run at 1000 MHz through a 128-bit bus. It also is made up of 480 SPUs, 24 TAUs, and 8 ROPs.
Benchmarks
These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.
3DMark Fire Strike Graphics Score
| Radeon HD 6670 (OEM) |
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1120 points |
| Radeon HD 6450 (OEM) |
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340 points |
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Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| Radeon HD 6450 (OEM) |
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31 Watts |
| Radeon HD 6670 (OEM) |
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63 Watts |
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Memory Bandwidth
The Radeon HD 6670 (OEM) should theoretically be a lot faster than the Radeon HD 6450 (OEM) in general. (explain)
| Radeon HD 6670 (OEM) |
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64000 MB/sec |
| Radeon HD 6450 (OEM) |
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12800 MB/sec |
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Texel Rate
The Radeon HD 6670 (OEM) is quite a bit (more or less 284%) faster with regards to anisotropic filtering than the Radeon HD 6450 (OEM). (explain)| Radeon HD 6670 (OEM) |
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19200 Mtexels/sec |
| Radeon HD 6450 (OEM) |
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5000 Mtexels/sec |
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Pixel Rate
The Radeon HD 6670 (OEM) will be much (more or less 156%) faster with regards to FSAA than the Radeon HD 6450 (OEM), and should be able to handle higher screen resolutions more effectively. (explain)| Radeon HD 6670 (OEM) |
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6400 Mpixels/sec |
| Radeon HD 6450 (OEM) |
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2500 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 6450 (OEM)Amazon.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 6450 (OEM) | Radeon HD 6670 (OEM) |
|---|---|---|
| Manufacturer | AMD | AMD |
| Year | February 2011 | February 2011 |
| Code Name | Caicos | Turks |
| Memory | 512 MB | 512 MB |
| Core Speed | 625 MHz | 800 MHz |
| Memory Speed | 1600 MHz | 4000 MHz |
| Power (Max TDP) | 31 watts | 63 watts |
| Bandwidth | 12800 MB/sec | 64000 MB/sec |
| Texel Rate | 5000 Mtexels/sec | 19200 Mtexels/sec |
| Pixel Rate | 2500 Mpixels/sec | 6400 Mpixels/sec |
| Unified Shaders | 160 | 480 |
| Texture Mapping Units | 8 | 24 |
| Render Output Units | 4 | 8 |
| Bus Type | GDDR3 | GDDR5 |
| Bus Width | 64-bit | 128-bit |
| Fab Process | 40 nm | 40 nm |
| Transistors | 370 million | 715 million |
| Bus | PCIe 2.1 x16 | PCIe 2.1 x16 |
| DirectX Version | DirectX 11 | DirectX 11 |
| OpenGL Version | OpenGL 4.1 | OpenGL 4.1 |
Memory Bandwidth: Bandwidth is the max amount of information (measured in MB per second) that can be transferred over the external memory interface in a second. It's worked out by multiplying the interface width by the speed of its memory. If the card has DDR RAM, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.
Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied in one second. This is worked out by multiplying the total texture units by the core speed of the chip. The higher the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.
Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.
Radeon HD 6450 (OEM)Amazon.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.
|
Comments
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