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Radeon HD 4650 1GB vs Radeon HD 5670
Intro
The Radeon HD 4650 1GB makes use of a 55 nm design. AMD has clocked the core frequency at 600 MHz. The GDDR3 memory runs at a speed of 700 MHz on this specific model. It features 320(64x5) SPUs as well as 32 Texture Address Units and 8 Rasterization Operator Units.Compare those specifications to the Radeon HD 5670, which makes use of a 40 nm design. AMD has clocked the core frequency at 775 MHz. The GDDR5 RAM runs at a speed of 1000 MHz on this specific model. It features 400(80x5) SPUs along with 20 TAUs and 8 Rasterization Operator Units.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| Radeon HD 4650 1GB |
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55 Watts |
| Radeon HD 5670 |
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61 Watts |
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Memory Bandwidth
The Radeon HD 5670, in theory, should be quite a bit faster than the Radeon HD 4650 1GB in general. (explain)
| Radeon HD 5670 |
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64000 MB/sec |
| Radeon HD 4650 1GB |
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22400 MB/sec |
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Texel Rate
The Radeon HD 4650 1GB is quite a bit (more or less 24%) more effective at AF than the Radeon HD 5670. (explain)| Radeon HD 4650 1GB |
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19200 Mtexels/sec |
| Radeon HD 5670 |
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15500 Mtexels/sec |
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Pixel Rate
If using lots of anti-aliasing is important to you, then the Radeon HD 5670 is superior to the Radeon HD 4650 1GB, by far. (explain)| Radeon HD 5670 |
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6200 Mpixels/sec |
| Radeon HD 4650 1GB |
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4800 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 4650 1GBAmazon.com
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Radeon HD 5670Amazon.com
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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 4650 1GB | Radeon HD 5670 |
|---|---|---|
| Manufacturer | AMD | AMD |
| Year | Sep 10, 2008 | January 14, 2010 |
| Code Name | RV730 PRO | Redwood XT |
| Memory | 1024 MB | 1024 MB |
| Core Speed | 600 MHz | 775 MHz |
| Memory Speed | 1400 MHz | 4000 MHz |
| Power (Max TDP) | 55 watts | 61 watts |
| Bandwidth | 22400 MB/sec | 64000 MB/sec |
| Texel Rate | 19200 Mtexels/sec | 15500 Mtexels/sec |
| Pixel Rate | 4800 Mpixels/sec | 6200 Mpixels/sec |
| Unified Shaders | 320(64x5) | 400(80x5) |
| Texture Mapping Units | 32 | 20 |
| Render Output Units | 8 | 8 |
| Bus Type | GDDR3 | GDDR5 |
| Bus Width | 128-bit | 128-bit |
| Fab Process | 55 nm | 40 nm |
| Transistors | 514 million | 627 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 3.2 |
Memory Bandwidth: Memory bandwidth is the maximum amount of information (measured in megabytes per second) that can be transferred past the external memory interface within a second. It is calculated by multiplying the interface width by the speed of its memory. If it uses DDR memory, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, 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 number of texture map elements (texels) that can be processed in one second. This number is worked out by multiplying the total amount of texture units by the core speed of the chip. The better the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.
Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip 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 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 output 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 potential to get to the max fill rate.
Radeon HD 4650 1GBAmazon.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
2 Responses to “Radeon HD 4650 1GB vs Radeon HD 5670”ab
what texel rate in game means exactly