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Radeon HD 3470 256MB vs Radeon HD 6450 (OEM) 1GB
Intro
The Radeon HD 3470 256MB comes with a core clock frequency of 800 MHz and a DDR2 memory speed of 950 MHz. It also uses a 128-bit memory bus, and uses a 55 nm design. It is comprised of 40(8x5) SPUs, 4 Texture Address Units, and 4 Raster Operation Units.Compare all of that to the Radeon HD 6450 (OEM) 1GB, which has clock speeds of 750 MHz on the GPU, and 900 MHz on the 1024 MB of GDDR5 RAM. It features 160 SPUs as well as 8 Texture Address Units and 4 Rasterization Operator Units.
Power Usage and Theoretical Benchmarks
Memory Bandwidth
The Radeon HD 3470 256MB should in theory be a little bit faster than the Radeon HD 6450 (OEM) 1GB overall. (explain)
| Radeon HD 3470 256MB |
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30400 MB/sec |
| Radeon HD 6450 (OEM) 1GB |
|
28800 MB/sec |
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Texel Rate
The Radeon HD 6450 (OEM) 1GB is a lot (about 88%) more effective at texture 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
If using a high screen resolution is important to you, then the Radeon HD 3470 256MB is the winner, though not by far. (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: Bandwidth is the max amount of information (counted in MB per second) that can be moved past the external memory interface in one second. It's calculated by multiplying the bus width by its memory speed. In the case of DDR memory, the result 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 higher screen resolutions.
Texel Rate: Texel rate is the maximum number of 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 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 in one second.
Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum 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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