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Radeon HD 3470 256MB vs Radeon HD 6450 (OEM)
Intro
The Radeon HD 3470 256MB features a core clock speed of 800 MHz and a DDR2 memory frequency of 950 MHz. It also features a 128-bit bus, and makes use of a 55 nm design. It is comprised of 40(8x5) SPUs, 4 TAUs, and 4 Raster Operation Units.Compare all of that to the Radeon HD 6450 (OEM), which comes with core speeds of 625 MHz on the GPU, and 800 MHz on the 512 MB of GDDR3 memory. It features 160 SPUs along with 8 TAUs and 4 Rasterization Operator Units.
Power Usage and Theoretical Benchmarks
Memory Bandwidth
In theory, the Radeon HD 3470 256MB should perform much faster than the Radeon HD 6450 (OEM) in general. (explain)
| Radeon HD 3470 256MB |
|
30400 MB/sec |
| Radeon HD 6450 (OEM) |
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12800 MB/sec |
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Texel Rate
The Radeon HD 6450 (OEM) is much (approximately 56%) faster with regards to texture filtering than the Radeon HD 3470 256MB. (explain)| Radeon HD 6450 (OEM) |
|
5000 Mtexels/sec |
| Radeon HD 3470 256MB |
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3200 Mtexels/sec |
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Pixel Rate
The Radeon HD 3470 256MB should be much (more or less 28%) more effective at AA than the Radeon HD 6450 (OEM), and capable of handling higher screen resolutions without losing too much performance. (explain)| Radeon HD 3470 256MB |
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3200 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 3470 256MBAmazon.com
Check prices at:
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Radeon HD 6450 (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 3470 256MB | Radeon HD 6450 (OEM) |
|---|---|---|
| Manufacturer | AMD | AMD |
| Year | 2008 | February 2011 |
| Code Name | RV620 PRO | Caicos |
| Memory | 256 MB | 512 MB |
| Core Speed | 800 MHz | 625 MHz |
| Memory Speed | 1900 MHz | 1600 MHz |
| Power (Max TDP) | (Unknown) watts | 31 watts |
| Bandwidth | 30400 MB/sec | 12800 MB/sec |
| Texel Rate | 3200 Mtexels/sec | 5000 Mtexels/sec |
| Pixel Rate | 3200 Mpixels/sec | 2500 Mpixels/sec |
| Unified Shaders | 40(8x5) | 160 |
| Texture Mapping Units | 4 | 8 |
| Render Output Units | 4 | 4 |
| Bus Type | DDR2 | GDDR3 |
| 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: Bandwidth is the max amount of data (measured in MB per second) that can be transported over the external memory interface within a second. It's calculated by multiplying the interface width by its memory clock speed. If the card has DDR RAM, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high 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 texture units of the card by the core clock 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 in a second.
Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly record 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 the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.
Radeon HD 3470 256MBAmazon.com
Check prices at:
|
Radeon HD 6450 (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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