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GeForce 9800 GTX+ vs Radeon HD 6670 (OEM)
Intro
The GeForce 9800 GTX+ uses a 55 nm design. nVidia has clocked the core frequency at 738 MHz. The GDDR3 RAM runs at a speed of 1100 MHz on this particular model. It features 128 SPUs as well as 64 Texture Address Units and 16 ROPs.Compare all that to the Radeon HD 6670 (OEM), which features GPU clock speed of 800 MHz, and 512 MB of GDDR5 RAM set to run at 1000 MHz through a 128-bit bus. It also is made up of 480 Stream Processors, 24 TAUs, and 8 ROPs.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| Radeon HD 6670 (OEM) |
|
63 Watts |
| GeForce 9800 GTX+ |
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145 Watts |
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Memory Bandwidth
Performance-wise, the GeForce 9800 GTX+ should in theory be just a bit better than the Radeon HD 6670 (OEM) overall. (explain)
| GeForce 9800 GTX+ |
|
70400 MB/sec |
| Radeon HD 6670 (OEM) |
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64000 MB/sec |
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Texel Rate
The GeForce 9800 GTX+ will be a lot (approximately 146%) more effective at texture filtering than the Radeon HD 6670 (OEM). (explain)| GeForce 9800 GTX+ |
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47232 Mtexels/sec |
| Radeon HD 6670 (OEM) |
|
19200 Mtexels/sec |
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Pixel Rate
If running with lots of anti-aliasing is important to you, then the GeForce 9800 GTX+ is superior to the Radeon HD 6670 (OEM), by a large margin. (explain)| GeForce 9800 GTX+ |
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11808 Mpixels/sec |
| Radeon HD 6670 (OEM) |
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6400 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
Please note that the price comparisons are based on search keywords, and might not be the exact same card listed on this page. We have no control over the accuracy of their search results.
GeForce 9800 GTX+Amazon.com
Other US-based stores
Amazon.co.uk
Amazon.de
Amazon.fr
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Radeon HD 6670 (OEM)Amazon.com
Other US-based stores
Amazon.co.uk
Amazon.de
Amazon.fr
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Specifications
| Model | GeForce 9800 GTX+ | Radeon HD 6670 (OEM) |
|---|---|---|
| Manufacturer | nVidia | ATi |
| Year | July 2008 | February 2011 |
| Code Name | G92b | Turks |
| Fab Process | 55 nm | 40 nm |
| Bus | PCIe x16 2.0 | PCIe 2.1 x16 |
| Memory | 512 MB | 512 MB |
| Core Speed | 738 MHz | 800 MHz |
| Shader Speed | 1836 MHz | (N/A) MHz |
| Memory Speed | 1100 MHz | 1000 MHz |
| Unified Shaders | 128 | 480 |
| Texture Mapping Units | 64 | 24 |
| Render Output Units | 16 | 8 |
| Bus Type | GDDR3 | GDDR5 |
| Bus Width | 256-bit | 128-bit |
| DirectX Version | DirectX 10 | DirectX 11 |
| OpenGL Version | OpenGL 3.0 | OpenGL 4.1 |
| Power (Max TDP) | 145 watts | 63 watts |
| Shader Model | 4.0 | 5.0 |
| Bandwidth | 70400 MB/sec | 64000 MB/sec |
| Texel Rate | 47232 Mtexels/sec | 19200 Mtexels/sec |
| Pixel Rate | 11808 Mpixels/sec | 6400 Mpixels/sec |
Memory Bandwidth: Memory bandwidth is the largest amount of information (measured in megabytes per second) that can be transferred over the external memory interface within a second. It is worked out by multiplying the card's bus width by its memory clock speed. If the card has DDR RAM, it must be multiplied by 2 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 number of texture map elements (texels) that can be applied in one second. This is calculated by multiplying the total amount of texture units by the core speed of the chip. The higher the texel rate, the better the 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 the graphics card could possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.
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