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Radeon HD 3470 256MB vs Radeon HD 6450 (OEM) 1GB
Intro
The Radeon HD 3470 256MB features a clock frequency 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 comprised of 40(8x5) SPUs, 4 TAUs, and 4 Raster Operation Units.Compare all of that to the Radeon HD 6450 (OEM) 1GB, which features clock speeds of 750 MHz on the GPU, and 900 MHz on the 1024 MB of GDDR5 memory. It features 160 SPUs as well as 8 TAUs and 4 ROPs.
Power Usage and Theoretical Benchmarks
Memory Bandwidth
Theoretically, the Radeon HD 3470 256MB should perform a little bit faster than the Radeon HD 6450 (OEM) 1GB overall. (explain)
| Radeon HD 3470 256MB |
|
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 should be much (about 88%) better at anisotropic filtering than the Radeon HD 3470 256MB. (explain)| Radeon HD 6450 (OEM) 1GB |
|
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 is a little bit (about 7%) better at FSAA than the Radeon HD 6450 (OEM) 1GB, and should be capable of handling higher screen resolutions without slowing down too much. (explain)| Radeon HD 3470 256MB |
|
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 maximum amount of information (in units of MB per second) that can be transferred past the external memory interface in one second. The number is worked out by multiplying the card's interface width by its memory clock speed. If the card has DDR type memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.
Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied in one second. This figure is worked out by multiplying the total texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.
Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of ROPs by the the card's clock speed. 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 lots of 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) 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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