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Radeon HD 5450 vs Radeon HD 5670
Intro
The Radeon HD 5450 comes with a GPU core speed of 650 MHz, and the 512 MB of DDR3 memory is set to run at 800 MHz through a 64-bit bus. It also is made up of 80(16x5) SPUs, 8 TAUs, and 4 ROPs.Compare those specs to the Radeon HD 5670, which has GPU clock speed of 775 MHz, and 1024 MB of GDDR5 memory set to run at 1000 MHz through a 128-bit bus. It also features 400(80x5) Stream Processors, 20 Texture Address Units, and 8 Raster Operation Units.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| Radeon HD 5450 |
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19 Watts |
| Radeon HD 5670 |
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61 Watts |
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Memory Bandwidth
Performance-wise, the Radeon HD 5670 should in theory be much better than the Radeon HD 5450 in general. (explain)
| Radeon HD 5670 |
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64000 MB/sec |
| Radeon HD 5450 |
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12800 MB/sec |
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Texel Rate
The Radeon HD 5670 should be much (approximately 198%) better at anisotropic filtering than the Radeon HD 5450. (explain)| Radeon HD 5670 |
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15500 Mtexels/sec |
| Radeon HD 5450 |
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5200 Mtexels/sec |
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Pixel Rate
The Radeon HD 5670 is much (about 138%) faster with regards to AA than the Radeon HD 5450, and should be able to handle higher resolutions better. (explain)| Radeon HD 5670 |
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6200 Mpixels/sec |
| Radeon HD 5450 |
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2600 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 5450Amazon.com
Check prices at:
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Radeon HD 5670Amazon.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 5450 | Radeon HD 5670 |
|---|---|---|
| Manufacturer | AMD | AMD |
| Year | February 4, 2010 | January 14, 2010 |
| Code Name | Cedar PRO | Redwood XT |
| Memory | 512 MB | 1024 MB |
| Core Speed | 650 MHz | 775 MHz |
| Memory Speed | 1600 MHz | 4000 MHz |
| Power (Max TDP) | 19 watts | 61 watts |
| Bandwidth | 12800 MB/sec | 64000 MB/sec |
| Texel Rate | 5200 Mtexels/sec | 15500 Mtexels/sec |
| Pixel Rate | 2600 Mpixels/sec | 6200 Mpixels/sec |
| Unified Shaders | 80(16x5) | 400(80x5) |
| Texture Mapping Units | 8 | 20 |
| Render Output Units | 4 | 8 |
| Bus Type | DDR3 | GDDR5 |
| Bus Width | 64-bit | 128-bit |
| Fab Process | 40 nm | 40 nm |
| Transistors | 292 million | 627 million |
| Bus | PCIe 2.1 x16 | PCIe 2.1 x16 |
| DirectX Version | DirectX 11 | DirectX 11 |
| OpenGL Version | OpenGL 3.2 | OpenGL 3.2 |
Memory Bandwidth: Bandwidth is the largest amount of information (measured in MB per second) that can be transferred past the external memory interface in a second. It is worked out by multiplying the bus width by its memory speed. In the case of DDR RAM, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.
Texel Rate: Texel rate is the maximum 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 texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.
Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly write to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Render Output Units 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 output rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.
Radeon HD 5450Amazon.com
Check prices at:
|
Radeon HD 5670Amazon.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 5450 vs Radeon HD 5670”[...] ATI Radeon HD 5450 Review > Benchmarks: Far Cry 2, Unreal Tournament 3 - TechSpot Reviews Radeon HD 5450 vs Radeon HD 5670 – Performance Comparison Benchmarks @ Hardware Compare E de ajuns? Performanta cel putin dubla din partea HD5670 fata de 5450. Ai fost multumit de [...]