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GeForce GT 450 (OEM) vs Radeon HD 3470 512MB
Intro
The GeForce GT 450 (OEM) uses a 40 nm design. nVidia has set the core speed at 790 MHz. The GDDR5 memory is set to run at a frequency of 1000 MHz on this particular model. It features 144 SPUs as well as 24 Texture Address Units and 24 Rasterization Operator Units.Compare those specifications to the Radeon HD 3470 512MB, which comes with core speeds of 800 MHz on the GPU, and 950 MHz on the 512 MB of GDDR3 RAM. It features 40(8x5) SPUs along with 4 TAUs and 4 Rasterization Operator Units.
Power Usage and Theoretical Benchmarks
Memory Bandwidth
In theory, the GeForce GT 450 (OEM) will be 216% faster than the Radeon HD 3470 512MB overall, due to its higher bandwidth. (explain)
| GeForce GT 450 (OEM) |
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96000 MB/sec |
| Radeon HD 3470 512MB |
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30400 MB/sec |
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Texel Rate
The GeForce GT 450 (OEM) should be much (approximately 493%) more effective at texture filtering than the Radeon HD 3470 512MB. (explain)| GeForce GT 450 (OEM) |
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18960 Mtexels/sec |
| Radeon HD 3470 512MB |
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3200 Mtexels/sec |
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Pixel Rate
If using lots of anti-aliasing is important to you, then the GeForce GT 450 (OEM) is superior to the Radeon HD 3470 512MB, and very much so. (explain)| GeForce GT 450 (OEM) |
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18960 Mpixels/sec |
| Radeon HD 3470 512MB |
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3200 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
GeForce GT 450 (OEM)Amazon.com
Check prices at:
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Radeon HD 3470 512MBAmazon.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 | GeForce GT 450 (OEM) | Radeon HD 3470 512MB |
|---|---|---|
| Manufacturer | nVidia | AMD |
| Year | October 2010 | 2008 |
| Code Name | GF106 | RV620 PRO |
| Memory | 1536 MB | 512 MB |
| Core Speed | 790 MHz | 800 MHz |
| Memory Speed | 4000 MHz | 1900 MHz |
| Power (Max TDP) | 106 watts | (Unknown) watts |
| Bandwidth | 96000 MB/sec | 30400 MB/sec |
| Texel Rate | 18960 Mtexels/sec | 3200 Mtexels/sec |
| Pixel Rate | 18960 Mpixels/sec | 3200 Mpixels/sec |
| Unified Shaders | 144 | 40(8x5) |
| Texture Mapping Units | 24 | 4 |
| Render Output Units | 24 | 4 |
| Bus Type | GDDR5 | GDDR3 |
| Bus Width | 192-bit | 128-bit |
| Fab Process | 40 nm | 55 nm |
| Transistors | 1170 million | (Unknown) million |
| Bus | PCIe x16 | PCIe 2.0 x16 |
| DirectX Version | DirectX 11 | DirectX 10.1 |
| OpenGL Version | OpenGL 4.1 | OpenGL 3.0 |
Memory Bandwidth: Memory bandwidth is the maximum amount of data (in units of megabytes per second) that can be transported past the external memory interface within a second. It's calculated by multiplying the interface width by its memory clock speed. In the case of DDR type memory, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.
Texel Rate: Texel rate is the maximum 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 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 per second.
Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly record to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Raster Operations Pipelines 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 lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.
GeForce GT 450 (OEM)Amazon.com
Check prices at:
|
Radeon HD 3470 512MBAmazon.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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