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Radeon HD 3470 256MB vs Radeon HD 6450 (OEM) 1GB
Intro
The Radeon HD 3470 256MB has a core clock speed of 800 MHz and a DDR2 memory frequency of 950 MHz. It also uses a 128-bit bus, and uses a 55 nm design. It is made up of 40(8x5) SPUs, 4 Texture Address Units, and 4 ROPs.Compare those specs to the Radeon HD 6450 (OEM) 1GB, which makes use of a 40 nm design. AMD has clocked the core speed at 750 MHz. The GDDR5 RAM is set to run at a speed of 900 MHz on this specific card. It features 160 SPUs along with 8 TAUs and 4 ROPs.
Power Usage and Theoretical Benchmarks
Memory Bandwidth
Performance-wise, the Radeon HD 3470 256MB should in theory be a small bit superior to the Radeon HD 6450 (OEM) 1GB overall. (explain)
| Radeon HD 3470 256MB |
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30400 MB/sec |
| Radeon HD 6450 (OEM) 1GB |
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28800 MB/sec |
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Texel Rate
The Radeon HD 6450 (OEM) 1GB is much (more or less 88%) faster with regards to texture filtering than the Radeon HD 3470 256MB. (explain)| Radeon HD 6450 (OEM) 1GB |
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6000 Mtexels/sec |
| Radeon HD 3470 256MB |
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3200 Mtexels/sec |
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Pixel Rate
The Radeon HD 3470 256MB will be just a bit (more or less 7%) faster with regards to FSAA than the Radeon HD 6450 (OEM) 1GB, and also should be able to handle higher screen resolutions without slowing down too much. (explain)| Radeon HD 3470 256MB |
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3200 Mpixels/sec |
| Radeon HD 6450 (OEM) 1GB |
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3000 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 3470 256MBAmazon.com
Check prices at:
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Radeon HD 6450 (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 3470 256MB | Radeon HD 6450 (OEM) 1GB |
|---|---|---|
| Manufacturer | AMD | AMD |
| Year | 2008 | February 2011 |
| Code Name | RV620 PRO | Caicos |
| Memory | 256 MB | 1024 MB |
| Core Speed | 800 MHz | 750 MHz |
| Memory Speed | 1900 MHz | 3600 MHz |
| Power (Max TDP) | (Unknown) watts | 31 watts |
| Bandwidth | 30400 MB/sec | 28800 MB/sec |
| Texel Rate | 3200 Mtexels/sec | 6000 Mtexels/sec |
| Pixel Rate | 3200 Mpixels/sec | 3000 Mpixels/sec |
| Unified Shaders | 40(8x5) | 160 |
| Texture Mapping Units | 4 | 8 |
| Render Output Units | 4 | 4 |
| Bus Type | DDR2 | GDDR5 |
| Bus Width | 128-bit | 64-bit |
| Fab Process | 55 nm | 40 nm |
| Transistors | (Unknown) million | 370 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: Memory bandwidth is the max amount of data (in units of MB per second) that can be moved across the external memory interface in one second. It is worked out by multiplying the interface width by its memory speed. In the case of DDR memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.
Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed in one second. This figure is worked out by multiplying the total number of texture units of the card 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 processed in one second.
Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly write to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.
Radeon HD 3470 256MBAmazon.com
Check prices at:
|
Radeon HD 6450 (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.
|
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